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Kittisak Jantanasakulwong
Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand

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Journal article
Published: 31 July 2021 in International Journal of Biological Macromolecules
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Oil resistant thermoplastic elastomers (TPE) were prepared using mung bean thermoplastic starch (MTPS) blending with rubbers and sericin. Sericin was incorporated into MTPS as a compatibilizer. MTPS with sericin (MTPSS) was blended with natural rubber (NR) and epoxidized NR (ENR). Sericin at 5% improved the tensile strength (10 MPa), elastic recovery (52%) and morphology of the MTPSS/ENR blend. The mechanical properties, elastic recovery and morphology of the MTPSS5/NR blend were improved by the addition of ENR. The MTPSS/ENR showed palm (28%) and motor oils (8%) swelling resistance because of the hydrophilicity of MTPS and high polarity of ENR. The MTPSS/ENR/NR showed gasoline swelling resistance (104%) because of the hydrophilicity of MTPS and low polarity of NR. FTIR confirmed a reaction between the –NH groups of sericin and the epoxy groups of ENR. This reaction improved the compatibility, mechanical properties, elastic recovery, morphology and oils swelling resistance of the blends.

ACS Style

Pornchai Rachtanapun; Araya Kodsangma; Nattagarn Homsaard; Sudarut Nadon; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Noppol Leksawasdi; Yuthana Phimolsiripol; Thanongsak Chaiyaso; Suphat Phongthai; Sarana Rose Sommano; Charin Techapun; Toshiaki Ougizawa; Thosak Kittikorn; Sutee Wangtueai; Joe M. Regenstein; Kittisak Jantanasakulwong. Thermoplastic mung bean starch/natural rubber/sericin blends for improved oil resistance. International Journal of Biological Macromolecules 2021, 188, 283 -289.

AMA Style

Pornchai Rachtanapun, Araya Kodsangma, Nattagarn Homsaard, Sudarut Nadon, Pensak Jantrawut, Warintorn Ruksiriwanich, Phisit Seesuriyachan, Noppol Leksawasdi, Yuthana Phimolsiripol, Thanongsak Chaiyaso, Suphat Phongthai, Sarana Rose Sommano, Charin Techapun, Toshiaki Ougizawa, Thosak Kittikorn, Sutee Wangtueai, Joe M. Regenstein, Kittisak Jantanasakulwong. Thermoplastic mung bean starch/natural rubber/sericin blends for improved oil resistance. International Journal of Biological Macromolecules. 2021; 188 ():283-289.

Chicago/Turabian Style

Pornchai Rachtanapun; Araya Kodsangma; Nattagarn Homsaard; Sudarut Nadon; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Noppol Leksawasdi; Yuthana Phimolsiripol; Thanongsak Chaiyaso; Suphat Phongthai; Sarana Rose Sommano; Charin Techapun; Toshiaki Ougizawa; Thosak Kittikorn; Sutee Wangtueai; Joe M. Regenstein; Kittisak Jantanasakulwong. 2021. "Thermoplastic mung bean starch/natural rubber/sericin blends for improved oil resistance." International Journal of Biological Macromolecules 188, no. : 283-289.

Preprint content
Published: 28 July 2021
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Cassava starch was blended with glycerol to prepare thermoplastic starch (TPS). TPS was premixed with sericin (TPSS) by solution mixing and then melt-blended with polyethylene grafted maleic anhydride (PEMAH). The effect of sericin on the mechanical properties, morphology, thermal properties, rheology, and reaction mechanism was investigated. The tensile strength and elongation at break of the TPSS10/PEMAH blend were improved to 12.2 MPa and 100.4%, respectively. The TPS/PEMAH morphology presented PEMAH particles (2 µm) dispersed in the TPS matrix, which decreased in size to approximately 200 nm when 5% sericin was used. The melting temperature of PEMAH (121°C) decreased to 111°C because of the small crystal size of the PEMAH phase. The viscosity of TPS/PEMAH increased with increasing sericin content because of the chain extension. Fourier-transform infrared spectroscopy (FTIR) confirmed the reaction between the amino groups of sericin and the maleic anhydride groups of PEMAH. This reaction reduced the interfacial tension between TPS and PEMAH, which improved the compatibility, mechanical properties, and morphology of the blend.

ACS Style

Thanongsak Chaiyaso; Pornchai Rachtanapun; Nanthicha Thajai; Krittameth Kiattipronpithak; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Noppol Leksawasdi; Yuthana Phimolsiripol; Charin Techapun; Sarana Rose Sommano; Toshiaki Ougizawa; Kamon Yakul; Kittisak Jantanasakulwong. Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch. 2021, 1 .

AMA Style

Thanongsak Chaiyaso, Pornchai Rachtanapun, Nanthicha Thajai, Krittameth Kiattipronpithak, Pensak Jantrawut, Warintorn Ruksiriwanich, Phisit Seesuriyachan, Noppol Leksawasdi, Yuthana Phimolsiripol, Charin Techapun, Sarana Rose Sommano, Toshiaki Ougizawa, Kamon Yakul, Kittisak Jantanasakulwong. Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch. . 2021; ():1.

Chicago/Turabian Style

Thanongsak Chaiyaso; Pornchai Rachtanapun; Nanthicha Thajai; Krittameth Kiattipronpithak; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Noppol Leksawasdi; Yuthana Phimolsiripol; Charin Techapun; Sarana Rose Sommano; Toshiaki Ougizawa; Kamon Yakul; Kittisak Jantanasakulwong. 2021. "Sericin cocoon bio-compatibilizer for reactive blending of thermoplastic cassava starch." , no. : 1.

Preprint content
Published: 23 July 2021
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Corn starch (CS) was blended with glycerol, latex natural rubber (LNR), and carboxymethyl cellulose (CMC). The addition of 10 phr of CMC improved the Young’s modulus (6.7 MPa), tensile strength (8 MPa), and elongation at break (80%) of the CSG/LNR blend. The morphology of the CSG/LNR/CMC blends showed a uniform distribution of LNR particles (1–3 µm) in the CSG matrix. The addition of CMC enhanced the swelling ability and water droplet contact angle of the blends owing to the swelling properties, interfacial crosslinking, and amphiphilic structure of CMC. Fourier transform infrared spectroscopy confirmed the reaction between the C=C bond of LNR and the carboxyl groups (–COO-) of CMC, in which Na+ ions in CMC acted as a catalyst. Notably, the mechanical properties of the CSG/LNR/CMC blend were improved owing to the miscibility of CSG/CMC and the CMC/LNR interfacial reaction.

ACS Style

Noppol Leksawasdi; Thanongsak Chaiyaso; Pornchai Rachtanapun; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Yuthana Phimolsiripol; Charin Techapun; Sarana Rose Sommano; Toshiaki Ougizawa; Kittisak Jantanasakulwong. Corn Starch Reactive Blending with Latex from Natural Rubber in Presence of Na+ Ions of Carboxymethyl Cellulose as a Catalyst. 2021, 1 .

AMA Style

Noppol Leksawasdi, Thanongsak Chaiyaso, Pornchai Rachtanapun, Pensak Jantrawut, Warintorn Ruksiriwanich, Phisit Seesuriyachan, Yuthana Phimolsiripol, Charin Techapun, Sarana Rose Sommano, Toshiaki Ougizawa, Kittisak Jantanasakulwong. Corn Starch Reactive Blending with Latex from Natural Rubber in Presence of Na+ Ions of Carboxymethyl Cellulose as a Catalyst. . 2021; ():1.

Chicago/Turabian Style

Noppol Leksawasdi; Thanongsak Chaiyaso; Pornchai Rachtanapun; Pensak Jantrawut; Warintorn Ruksiriwanich; Phisit Seesuriyachan; Yuthana Phimolsiripol; Charin Techapun; Sarana Rose Sommano; Toshiaki Ougizawa; Kittisak Jantanasakulwong. 2021. "Corn Starch Reactive Blending with Latex from Natural Rubber in Presence of Na+ Ions of Carboxymethyl Cellulose as a Catalyst." , no. : 1.

Communication
Published: 23 July 2021 in Polymers
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Polylactic acid (PLA) was melt-blended with epoxy resin to study the effects of the reaction on the mechanical and thermal properties of the PLA. The addition of 0.5% (wt/wt) epoxy to PLA increased the maximum tensile strength of PLA (57.5 MPa) to 67 MPa, whereas the 20% epoxy improved the elongation at break to 12%, due to crosslinking caused by the epoxy reaction. The morphology of the PLA/epoxy blends showed epoxy nanoparticle dispersion in the PLA matrix that presented a smooth fracture surface with a high epoxy content. The glass transition temperature of PLA decreased with an increasing epoxy content owing to the partial miscibility between PLA and the epoxy resin. The Vicat softening temperature of the PLA was 59 °C and increased to 64.6 °C for 0.5% epoxy. NMR confirmed the reaction between the -COOH groups of PLA and the epoxy groups of the epoxy resin. This reaction, and partial miscibility of the PLA/epoxy blend, improved the interfacial crosslinking, morphology, thermal properties, and mechanical properties of the blends.

ACS Style

Krittameth Kiattipornpithak; Nanthicha Thajai; Thidarat Kanthiya; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; David Rohindra; Warintorn Ruksiriwanich; Sarana Rose Sommano; Kittisak Jantanasakulwong. Reaction Mechanism and Mechanical Property Improvement of Poly(Lactic Acid) Reactive Blending with Epoxy Resin. Polymers 2021, 13, 2429 .

AMA Style

Krittameth Kiattipornpithak, Nanthicha Thajai, Thidarat Kanthiya, Pornchai Rachtanapun, Noppol Leksawasdi, Yuthana Phimolsiripol, David Rohindra, Warintorn Ruksiriwanich, Sarana Rose Sommano, Kittisak Jantanasakulwong. Reaction Mechanism and Mechanical Property Improvement of Poly(Lactic Acid) Reactive Blending with Epoxy Resin. Polymers. 2021; 13 (15):2429.

Chicago/Turabian Style

Krittameth Kiattipornpithak; Nanthicha Thajai; Thidarat Kanthiya; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; David Rohindra; Warintorn Ruksiriwanich; Sarana Rose Sommano; Kittisak Jantanasakulwong. 2021. "Reaction Mechanism and Mechanical Property Improvement of Poly(Lactic Acid) Reactive Blending with Epoxy Resin." Polymers 13, no. 15: 2429.

Journal article
Published: 23 April 2021 in Molecules
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Targeting tyrosinase for melanogenesis disorders is an established strategy. Hydroxyl-substituted benzoic and cinnamic acid scaffolds were incorporated into new chemotypes that displayed in vitro inhibitory effects against mushroom and human tyrosinase for the purpose of identifying anti-melanogenic ingredients. The most active compound 2-((4-methoxyphenethyl)amino)-2-oxoethyl (E)-3-(2,4-dihydroxyphenyl) acrylate (Ph9), inhibited mushroom tyrosinase with an IC50 of 0.059 nM, while 2-((4-methoxyphenethyl)amino)-2-oxoethyl cinnamate (Ph6) had an IC50 of 2.1 nM compared to the positive control, kojic acid IC50 16700 nM. Results of human tyrosinase inhibitory activity in A375 human melanoma cells showed that compound (Ph9) and Ph6 exhibited 94.6% and 92.2% inhibitory activity respectively while the positive control kojic acid showed 72.9% inhibition. Enzyme kinetics reflected a mixed type of inhibition for inhibitor Ph9 (Ki 0.093 nM) and non-competitive inhibition for Ph6 (Ki 2.3 nM) revealed from Lineweaver–Burk plots. In silico docking studies with mushroom tyrosinase (PDB ID:2Y9X) predicted possible binding modes in the catalytic site for these active compounds. Ph9 displayed no PAINS (pan-assay interference compounds) alerts. Our results showed that compound Ph9 is a potential candidate for further development of tyrosinase inhibitors.

ACS Style

Yasir Nazir; Hummera Rafique; Naghmana Kausar; Qamar Abbas; Zaman Ashraf; Pornchai Rachtanapun; Kittisak Jantanasakulwong; Warintorn Ruksiriwanich. Methoxy-Substituted Tyramine Derivatives Synthesis, Computational Studies and Tyrosinase Inhibitory Kinetics. Molecules 2021, 26, 2477 .

AMA Style

Yasir Nazir, Hummera Rafique, Naghmana Kausar, Qamar Abbas, Zaman Ashraf, Pornchai Rachtanapun, Kittisak Jantanasakulwong, Warintorn Ruksiriwanich. Methoxy-Substituted Tyramine Derivatives Synthesis, Computational Studies and Tyrosinase Inhibitory Kinetics. Molecules. 2021; 26 (9):2477.

Chicago/Turabian Style

Yasir Nazir; Hummera Rafique; Naghmana Kausar; Qamar Abbas; Zaman Ashraf; Pornchai Rachtanapun; Kittisak Jantanasakulwong; Warintorn Ruksiriwanich. 2021. "Methoxy-Substituted Tyramine Derivatives Synthesis, Computational Studies and Tyrosinase Inhibitory Kinetics." Molecules 26, no. 9: 2477.

Journal article
Published: 21 March 2021 in Polymers
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Curcumin is a phenolic compound derived from turmeric roots (Curcuma longa L.). This research studied the effects of curcumin extract on the properties of chitosan films. The film characteristics measured included mechanical properties, visual aspects, color parameters, light transmission, moisture content, water solubility, water vapor permeability, infrared spectroscopy, and antioxidant activity. The results suggest that adding curcumin to chitosan-based films increases yellowness and light barriers. Infrared spectroscopy analysis showed interactions between the phenolic compounds of the extract and the chitosan, which may have improved the mechanical properties and reduced the moisture content, water solubility, and water vapor permeability of the films. The antioxidant activity of the films increased with increasing concentrations of the curcumin extract. This study shows the potential benefits of incorporating curcumin extract into chitosan films used as active packaging.

ACS Style

Pornchai Rachtanapun; Warinporn Klunklin; Pensak Jantrawut; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Phisit Seesuriyachan; Noppol Leksawasdi; Thanongsak Chaiyaso; Warintorn Ruksiriwanich; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. Characterization of Chitosan Film Incorporated with Curcumin Extract. Polymers 2021, 13, 963 .

AMA Style

Pornchai Rachtanapun, Warinporn Klunklin, Pensak Jantrawut, Kittisak Jantanasakulwong, Yuthana Phimolsiripol, Phisit Seesuriyachan, Noppol Leksawasdi, Thanongsak Chaiyaso, Warintorn Ruksiriwanich, Suphat Phongthai, Sarana Sommano, Winita Punyodom, Alissara Reungsang, Thi Ngo. Characterization of Chitosan Film Incorporated with Curcumin Extract. Polymers. 2021; 13 (6):963.

Chicago/Turabian Style

Pornchai Rachtanapun; Warinporn Klunklin; Pensak Jantrawut; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Phisit Seesuriyachan; Noppol Leksawasdi; Thanongsak Chaiyaso; Warintorn Ruksiriwanich; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. 2021. "Characterization of Chitosan Film Incorporated with Curcumin Extract." Polymers 13, no. 6: 963.

Journal article
Published: 16 March 2021 in Foods
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Pectin recovered from mango peel biomass can be used as a potential source for pectic oligosaccharide hydrolysate with excellent probiotic growth-enhancing performance and prebiotic potentials. Consequently, the objectives of the current study were to optimise the enzyme hydrolysis treatment of mango peel pectin (MPP) and to evaluate the pectic oligosaccharide effects of Lactobacillus reuteri DSM 17938 and Bifidobacterium animalis TISTR 2195. Mango of “chok anan” variety was chosen due to its excessive volume of biomass in processing and high pectin content. The optimal treatment for mango peel pectic oligosaccharide (MPOS) valorisation was 24 h of fermentation with 0.3% (v/v) pectinase. This condition provided small oligosaccharides with the molecular weight of 643 Da that demonstrated the highest score of prebiotic activity for both of B. animalis TISTR 2195 (7.76) and L. reuteri DSM 17938 (6.87). The major sugar compositions of the oligosaccharide were fructose (24.41% (w/w)) and glucose (19.52% (w/w)). For the simulation of prebiotic fermentation, B. animalis TISTR 2195 showed higher proliferation in 4% (w/v) of MPOS supplemented (8.92 log CFU/mL) than that of L. reuteri (8.53 CFU/mL) at 72 h of the fermentation time. The main short chain fatty acids (SCFAs) derived from MPOS were acetic acid and propionic acid. The highest value of total SCFA was achieved from the 4% (w/v) MPOS supplementation for both of B. animalis (68.57 mM) and L. reuteri (69.15 mM). The result of this study therefore conclusively advises that MPOS is a novel pectic oligosaccharide resource providing the opportunity for the sustainable development approach through utilising by-products from the fruit industry.

ACS Style

Malaiporn Wongkaew; Bow Tinpovong; Korawan Sringarm; Noppol Leksawasdi; Kittisak Jantanasakulwong; Pornchai Rachtanapun; Prasert Hanmoungjai; Sarana Sommano. Crude Pectic Oligosaccharide Recovery from Thai Chok Anan Mango Peel Using Pectinolytic Enzyme Hydrolysis. Foods 2021, 10, 627 .

AMA Style

Malaiporn Wongkaew, Bow Tinpovong, Korawan Sringarm, Noppol Leksawasdi, Kittisak Jantanasakulwong, Pornchai Rachtanapun, Prasert Hanmoungjai, Sarana Sommano. Crude Pectic Oligosaccharide Recovery from Thai Chok Anan Mango Peel Using Pectinolytic Enzyme Hydrolysis. Foods. 2021; 10 (3):627.

Chicago/Turabian Style

Malaiporn Wongkaew; Bow Tinpovong; Korawan Sringarm; Noppol Leksawasdi; Kittisak Jantanasakulwong; Pornchai Rachtanapun; Prasert Hanmoungjai; Sarana Sommano. 2021. "Crude Pectic Oligosaccharide Recovery from Thai Chok Anan Mango Peel Using Pectinolytic Enzyme Hydrolysis." Foods 10, no. 3: 627.

Journal article
Published: 04 February 2021 in Polymers
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Nata de coco has been used as a raw material for food preparation. In this study, the production of carboxymethyl cellulose (CMC) film from nata de coco and the effect of monochloroacetic acid on carboxymethyl bacterial cellulose (CMC n ) and its film were investigated. Bacterial cellulose from nata de coco was modified into CMC form via carboxymethylation using various concentrations of monochloroacetic acid (MCA) at 6, 12, 18, and 24 g per 15 g of cellulose. The results showed that different concentrations of MCA affected the degree of substitution (DS), chemical structure, viscosity, color, crystallinity, and morphology of CMC n . The optimum treatment for carboxymethylation was found using 24 g of MCA per 15 g of cellulose, which provided the highest DS at 0.83. The morphology of CMC n was related to DS value; a higher DS value showed denser and smoother surface than nata de coco cellulose. The various MCA concentrations increased the mechanical properties (tensile strength and percentage of elongation at break) and water vapor permeability of CMC n , which were related to the DS value.

ACS Style

Pornchai Rachtanapun; Warinporn Klunklin; Pensak Jantrawut; Noppol Leksawasdi; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Phisit Seesuriyachan; Thanongsak Chaiyaso; Warintorn Ruksiriwanich; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. Effect of Monochloroacetic Acid on Properties of Carboxymethyl Bacterial Cellulose Powder and Film from Nata de Coco. Polymers 2021, 13, 488 .

AMA Style

Pornchai Rachtanapun, Warinporn Klunklin, Pensak Jantrawut, Noppol Leksawasdi, Kittisak Jantanasakulwong, Yuthana Phimolsiripol, Phisit Seesuriyachan, Thanongsak Chaiyaso, Warintorn Ruksiriwanich, Suphat Phongthai, Sarana Sommano, Winita Punyodom, Alissara Reungsang, Thi Ngo. Effect of Monochloroacetic Acid on Properties of Carboxymethyl Bacterial Cellulose Powder and Film from Nata de Coco. Polymers. 2021; 13 (4):488.

Chicago/Turabian Style

Pornchai Rachtanapun; Warinporn Klunklin; Pensak Jantrawut; Noppol Leksawasdi; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Phisit Seesuriyachan; Thanongsak Chaiyaso; Warintorn Ruksiriwanich; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. 2021. "Effect of Monochloroacetic Acid on Properties of Carboxymethyl Bacterial Cellulose Powder and Film from Nata de Coco." Polymers 13, no. 4: 488.

Journal article
Published: 22 January 2021 in Polymers
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Bacterial cellulose from nata de coco was prepared from the fermentation of coconut juice with Acetobacter xylinum for 10 days at room temperature under sterile conditions. Carboxymethyl cellulose (CMC) was transformed from the bacterial cellulose from the nata de coco by carboxymethylation using different concentrations of sodium hydroxide (NaOH) and monochloroacetic acid (MCA) in an isopropyl (IPA) medium. The effects of various NaOH concentrations on the degree of substitution (DS), chemical structure, viscosity, color, crystallinity, morphology and the thermal properties of carboxymethyl bacterial cellulose powder from nata de coco (CMCn) were evaluated. In the carboxymethylation process, the optimal condition resulted from NaOH amount of 30 g/100 mL, as this provided the highest DS value (0.92). The crystallinity of CMCn declined after synthesis but seemed to be the same in each condition. The mechanical properties (tensile strength and percentage of elongation at break), water vapor permeability (WVP) and morphology of CMCn films obtained from CMCn synthesis using different NaOH concentrations were investigated. The tensile strength of CMCn film synthesized with a NaOH concentration of 30 g/100 mL increased, however it declined when the amount of NaOH concentration was too high. This result correlated with the DS value. The highest percent elongation at break was obtained from CMCn films synthesized with 50 g/100 mL NaOH, whereas the elongation at break decreased when NaOH concentration increased to 60 g/100 mL.

ACS Style

Pornchai Rachtanapun; Pensak Jantrawut; Warinporn Klunklin; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Noppol Leksawasdi; Phisit Seesuriyachan; Thanongsak Chaiyaso; Chayatip Insomphun; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. Carboxymethyl Bacterial Cellulose from Nata de Coco: Effects of NaOH. Polymers 2021, 13, 348 .

AMA Style

Pornchai Rachtanapun, Pensak Jantrawut, Warinporn Klunklin, Kittisak Jantanasakulwong, Yuthana Phimolsiripol, Noppol Leksawasdi, Phisit Seesuriyachan, Thanongsak Chaiyaso, Chayatip Insomphun, Suphat Phongthai, Sarana Sommano, Winita Punyodom, Alissara Reungsang, Thi Ngo. Carboxymethyl Bacterial Cellulose from Nata de Coco: Effects of NaOH. Polymers. 2021; 13 (3):348.

Chicago/Turabian Style

Pornchai Rachtanapun; Pensak Jantrawut; Warinporn Klunklin; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Noppol Leksawasdi; Phisit Seesuriyachan; Thanongsak Chaiyaso; Chayatip Insomphun; Suphat Phongthai; Sarana Sommano; Winita Punyodom; Alissara Reungsang; Thi Ngo. 2021. "Carboxymethyl Bacterial Cellulose from Nata de Coco: Effects of NaOH." Polymers 13, no. 3: 348.

Journal article
Published: 28 December 2020 in Polymers
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Cellulose from Asparagus officinalis stalk end was extracted and synthesized to carboxymethyl cellulose (CMCas) using monochloroacetic acid (MCA) via carboxymethylation reaction with various sodium hydroxide (NaOH) concentrations starting from 20% to 60%. The cellulose and CMCas were characterized by the physical properties, Fourier Transform Infrared spectroscopy (FTIR), Differential scanning calorimetry (DSC), Scanning electron microscopy (SEM) and X-ray diffraction (XRD). In addition, mechanical properties of CMCas films were also investigated. The optimum condition for producing CMCas was found to be 30% of NaOH concentration for the carboxymethylation reaction, which provided the highest percent yield of CMCas at 44.04% with the highest degree of substitution (DS) at 0.98. The melting point of CMCas decreased with increasing NaOH concentrations. Crystallinity of CMCas was significantly deformed (p < 0.05) after synthesis at a high concentration. The L* value of the CMCas was significantly lower at a high NaOH concentration compared to the cellulose. The highest tensile strength (44.59 MPa) was found in CMCas film synthesized with 40% of NaOH concentration and the highest percent elongation at break (24.99%) was obtained in CMCas film treated with 30% of NaOH concentration. The applications of asparagus stalk end are as biomaterials in drug delivery system, tissue engineering, coating, and food packaging.

ACS Style

Warinporn Klunklin; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Noppol Leksawasdi; Phisit Seesuriyachan; Thanongsak Chaiyaso; Chayatip Insomphun; Suphat Phongthai; Pensak Jantrawut; Sarana Rose Sommano; Winita Punyodom; Alissara Reungsang; Thi Minh Phuong Ngo; Pornchai Rachtanapun. Synthesis, Characterization, and Application of Carboxymethyl Cellulose from Asparagus Stalk End. Polymers 2020, 13, 81 .

AMA Style

Warinporn Klunklin, Kittisak Jantanasakulwong, Yuthana Phimolsiripol, Noppol Leksawasdi, Phisit Seesuriyachan, Thanongsak Chaiyaso, Chayatip Insomphun, Suphat Phongthai, Pensak Jantrawut, Sarana Rose Sommano, Winita Punyodom, Alissara Reungsang, Thi Minh Phuong Ngo, Pornchai Rachtanapun. Synthesis, Characterization, and Application of Carboxymethyl Cellulose from Asparagus Stalk End. Polymers. 2020; 13 (1):81.

Chicago/Turabian Style

Warinporn Klunklin; Kittisak Jantanasakulwong; Yuthana Phimolsiripol; Noppol Leksawasdi; Phisit Seesuriyachan; Thanongsak Chaiyaso; Chayatip Insomphun; Suphat Phongthai; Pensak Jantrawut; Sarana Rose Sommano; Winita Punyodom; Alissara Reungsang; Thi Minh Phuong Ngo; Pornchai Rachtanapun. 2020. "Synthesis, Characterization, and Application of Carboxymethyl Cellulose from Asparagus Stalk End." Polymers 13, no. 1: 81.

Journal article
Published: 27 November 2020 in Membranes
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The objective of the present study was to develop an orally disintegrating film (ODF) for a poorly water-soluble drug, phenytoin (PHT), using the cosolvent solubilization technique to achieve the amorphization of the drug, followed by the preparation of ODFs. Eleven formulations were prepared with different polymers, such as polyvinyl alcohol (PVA) and high methoxyl pectin (HMP) by the solvent casting method. The prepared films were subjected to characterization for weight variations, thickness, surface pH, disintegration time and mechanical strength properties. Then, differential scanning calorimetry, X-ray diffraction analysis and the drug release patterns of the selected films were evaluated. Among the prepared formulations, the formulation composed of 1% w/w of PVA, 0.04% w/w of sodium starch glycolate with polyethylene glycol 400, glycerin and water as cosolvents (PVA-S4) showed promising results. The physical appearance and mechanical strength properties were found to be good. The PVA-S4 film was clear and colorless with a smooth surface. The surface pH was found to be around 7.47 and the in vitro disintegration time was around 1.44 min. The drug content of the PVA-S4 film was 100.27%. X-ray diffractometry and thermal analysis confirmed the transition of phenytoin in the PVA-S4 film into a partially amorphous state during film preparation using the cosolvent solubilization approach. The resulting PVA-S4 film showed a higher dissolution rate in comparison to the film without a cosolvent. Overall, this study indicated the influence of cosolvents on enhancing the solubility of a poorly water-soluble drug and its film dissolution.

ACS Style

Pattaraporn Panraksa; Pratchaya Tipduangta; Kittisak Jantanasakulwong; Pensak Jantrawut. Formulation of Orally Disintegrating Films as an Amorphous Solid Solution of a Poorly Water-Soluble Drug. Membranes 2020, 10, 376 .

AMA Style

Pattaraporn Panraksa, Pratchaya Tipduangta, Kittisak Jantanasakulwong, Pensak Jantrawut. Formulation of Orally Disintegrating Films as an Amorphous Solid Solution of a Poorly Water-Soluble Drug. Membranes. 2020; 10 (12):376.

Chicago/Turabian Style

Pattaraporn Panraksa; Pratchaya Tipduangta; Kittisak Jantanasakulwong; Pensak Jantrawut. 2020. "Formulation of Orally Disintegrating Films as an Amorphous Solid Solution of a Poorly Water-Soluble Drug." Membranes 10, no. 12: 376.

Journal article
Published: 09 November 2020 in Plants
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In this research, we assessed the detergency properties along with chemical characteristic of the surfactant extracts from the most frequently cited detergent plants in Northern Thailand, namely, Sapindus rarak, Acacia concinna, and Litsea glutinosa. Moreover, as to provide the sustainable option for production of such valuable ingredients, plant tissue culture (PTC) as alternative method for industrial metabolite cultivation was also proposed herein. The results illustrated that detergent plant extracts showed moderate in foaming and detergency abilities compared with those of synthetic surfactant. The phytochemical analysis illustrated the positive detection of saponins in L. glutinosa plant extracts. The highest callus formation was found in L. glutinosa explant cultured with MS medium supplemented with 2.0 mg/L Indole-3-acetic acid (IAA). The callus extract was chemical elucidated using chromatography, which illustrated the presence of saponin similar to those from the crude leaf and Quillaja saponin extracts. Compact mass spectrometry confirmed that the surfactant was of the steroidal diagnostic type.

ACS Style

Jiratchaya Wisetkomolmat; Ratchuporn Suksathan; Ratchadawan Puangpradab; Keawalin Kunasakdakul; Kittisak Jantanasakulwong; Pornchai Rachtanapun; Sarana Rose Sommano. Natural Surfactant Saponin from Tissue of Litsea glutinosa and Its Alternative Sustainable Production. Plants 2020, 9, 1521 .

AMA Style

Jiratchaya Wisetkomolmat, Ratchuporn Suksathan, Ratchadawan Puangpradab, Keawalin Kunasakdakul, Kittisak Jantanasakulwong, Pornchai Rachtanapun, Sarana Rose Sommano. Natural Surfactant Saponin from Tissue of Litsea glutinosa and Its Alternative Sustainable Production. Plants. 2020; 9 (11):1521.

Chicago/Turabian Style

Jiratchaya Wisetkomolmat; Ratchuporn Suksathan; Ratchadawan Puangpradab; Keawalin Kunasakdakul; Kittisak Jantanasakulwong; Pornchai Rachtanapun; Sarana Rose Sommano. 2020. "Natural Surfactant Saponin from Tissue of Litsea glutinosa and Its Alternative Sustainable Production." Plants 9, no. 11: 1521.

Journal article
Published: 08 October 2020 in Polymers
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Time–temperature indicators (TTIs) can be important tools in product applications to monitor food quality losses, especially for fruits and vegetables. In this context, the effects of silver nanoparticles (AgNPs) and glycerol on the color change of polydiacetylene/AgNPs (PDA/AgNPs) embedded in carboxymethyl cellulose (CMC) film as time–temperature indicators (TTIs) were investigated. A CMC film prepared with 30 mg/L AgNPs and a 1:3 (v/v) PDA:AgNP ratio exhibited a faster color change than under other conditions. At 35 °C, the films with PDA/AgNPs changed color from purplish-blue to purple and purple to reddish-purple over time due to the higher thermal conductivity of AgNPs and larger PDA surface area exposed to specific temperatures. The total color difference (TCD) of PDA/AgNP-embedded CMC film directly changed with regard to time and temperature. However, adding glycerol to the system resulted in a symmetrical chemical structure, a factor that delayed the color change. Scanning electron micrographs showed AgNPs embedded in the CMC films. Transmission electron micrographs indicated a core-shell structure of PDA/AgNP vesicles in the CMC matrix. PDA/AgNP vesicles were confirmed by second derivative Fourier transform infrared spectroscopy, with a new peak at 1390–1150 cm−1. The kinetics of TTIs from PDA/AgNP-embedded CMC films yielded an activation energy of 58.70 kJ/mol.

ACS Style

Aphisit Saenjaiban; Teeranuch Singtisan; Panuwat Suppakul; Kittisak Jantanasakulwong; Winita Punyodom; Pornchai Rachtanapun. Novel Color Change Film as a Time–Temperature Indicator Using Polydiacetylene/Silver Nanoparticles Embedded in Carboxymethyl Cellulose. Polymers 2020, 12, 2306 .

AMA Style

Aphisit Saenjaiban, Teeranuch Singtisan, Panuwat Suppakul, Kittisak Jantanasakulwong, Winita Punyodom, Pornchai Rachtanapun. Novel Color Change Film as a Time–Temperature Indicator Using Polydiacetylene/Silver Nanoparticles Embedded in Carboxymethyl Cellulose. Polymers. 2020; 12 (10):2306.

Chicago/Turabian Style

Aphisit Saenjaiban; Teeranuch Singtisan; Panuwat Suppakul; Kittisak Jantanasakulwong; Winita Punyodom; Pornchai Rachtanapun. 2020. "Novel Color Change Film as a Time–Temperature Indicator Using Polydiacetylene/Silver Nanoparticles Embedded in Carboxymethyl Cellulose." Polymers 12, no. 10: 2306.

Journal article
Published: 07 July 2020 in Polymers
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The aim of this work was to synthesize carboxymethyl cellulose (CMC) and produce CMC films from the cellulose of palm bunch and bagasse agricultural waste. The effect of various amounts of H2O2 (0–40% v/v) during delignification on the properties of cellulose, CMC, and CMC films was studied. As the H2O2 content increased, yield and the lignin content of the cellulose from palm bunch and bagasse decreased, whereas lightness (L*) and whiteness index (WI) increased. FTIR confirmed the substitution of a carboxymethyl group on the cellulose structure. A higher degree of substitution of CMC from both sources was found when 20%–30% H2O2 was employed. The trend in the L* and WI values of each CMC and CMC film was related to those values in their respective cellulose. Bleaching each cellulose with 20% H2O2 provided the cellulose with the highest viscosity and the CMC films with the greatest mechanical (higher tensile strength and elongation at break) and soluble attributes, but the lowest water vapor barrier. This evidence indicates that cellulose delignification with H2O2 has a strong effect on the appearance and physical properties of both CMCs.

ACS Style

Rungsiri Suriyatem; Nichaya Noikang; Tamolwan Kankam; Kittisak Jantanasakulwong; Noppol Leksawasdi; Yuthana Phimolsiripol; Chayatip Insomphun; Phisit Seesuriyachan; Thanongsak Chaiyaso; Pensak Jantrawut; Sarana Rose Sommano; Thi Minh Phuong Ngo; Pornchai Rachtanapun. Physical Properties of Carboxymethyl Cellulose from Palm Bunch and Bagasse Agricultural Wastes: Effect of Delignification with Hydrogen Peroxide. Polymers 2020, 12, 1505 .

AMA Style

Rungsiri Suriyatem, Nichaya Noikang, Tamolwan Kankam, Kittisak Jantanasakulwong, Noppol Leksawasdi, Yuthana Phimolsiripol, Chayatip Insomphun, Phisit Seesuriyachan, Thanongsak Chaiyaso, Pensak Jantrawut, Sarana Rose Sommano, Thi Minh Phuong Ngo, Pornchai Rachtanapun. Physical Properties of Carboxymethyl Cellulose from Palm Bunch and Bagasse Agricultural Wastes: Effect of Delignification with Hydrogen Peroxide. Polymers. 2020; 12 (7):1505.

Chicago/Turabian Style

Rungsiri Suriyatem; Nichaya Noikang; Tamolwan Kankam; Kittisak Jantanasakulwong; Noppol Leksawasdi; Yuthana Phimolsiripol; Chayatip Insomphun; Phisit Seesuriyachan; Thanongsak Chaiyaso; Pensak Jantrawut; Sarana Rose Sommano; Thi Minh Phuong Ngo; Pornchai Rachtanapun. 2020. "Physical Properties of Carboxymethyl Cellulose from Palm Bunch and Bagasse Agricultural Wastes: Effect of Delignification with Hydrogen Peroxide." Polymers 12, no. 7: 1505.

Original article
Published: 15 June 2020 in International Journal of Food Science & Technology
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An egg coating was developed to preserve the internal quality of eggs by mixing cassava starch (CS), gelling agents and fatty acids. Hydroxypropyl methylcellulose (HPMC) and carboxymethyl cellulose (CMC) were used as gelling agents. Palm oil fatty acid (PO) was incorporated. Coated and non‐coated eggs were evaluated over a period of 4 weeks at 28 °C by the yolk colour, weight loss, albumen pH and Haugh unit testing. The quality of non‐coated eggs deteriorated from AA to B grade after 3 weeks, with values below the detection limit at 4 weeks. The optimum coating was 6/1/3 w/v% (CS/CMC/PO3). Contact angle, solubility and swelling in the water of the coating materials indicated the improvement of water resistance by addition of CMC and PO. Weight loss of the coated eggs was 4.9% lower than that of the non‐coated eggs (6.5%) after 4 weeks. The CS/CMC/PO3 emulsion coating significantly extended egg shelf life due to the high compatibility and water resistance of CMC as well as the hydrophobic property of PO.

ACS Style

Nattagarn Homsaard; Araya Kodsangma; Pensak Jantrawut; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Phisit Seesuriyachan; Thanongsak Chaiyaso; Sarana Rose Sommano; David Rohindra; Kittisak Jantanasakulwong. Efficacy of cassava starch blending with gelling agents and palm oil coating in improving egg shelf life. International Journal of Food Science & Technology 2020, 1 .

AMA Style

Nattagarn Homsaard, Araya Kodsangma, Pensak Jantrawut, Pornchai Rachtanapun, Noppol Leksawasdi, Yuthana Phimolsiripol, Phisit Seesuriyachan, Thanongsak Chaiyaso, Sarana Rose Sommano, David Rohindra, Kittisak Jantanasakulwong. Efficacy of cassava starch blending with gelling agents and palm oil coating in improving egg shelf life. International Journal of Food Science & Technology. 2020; ():1.

Chicago/Turabian Style

Nattagarn Homsaard; Araya Kodsangma; Pensak Jantrawut; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Phisit Seesuriyachan; Thanongsak Chaiyaso; Sarana Rose Sommano; David Rohindra; Kittisak Jantanasakulwong. 2020. "Efficacy of cassava starch blending with gelling agents and palm oil coating in improving egg shelf life." International Journal of Food Science & Technology , no. : 1.

Journal article
Published: 12 May 2020 in Carbohydrate Polymers
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Thermoplastic elastomer (TPE) was developed by blending thermoplastic starch (TPS) with rubber. Thermoplastic starch-chitosan (TPSC) was prepared by the solution mixing of cassava starch, chitosan (CTS) and glycerol in acidified water (lactic acid 1 wt%) at 80 °C follow by melt mixing at 130 °C. Sodium benzoate (BEN) and chlorhexidine gluconate (Cl) were added during the solution mixing as additives for antimicrobial properties. TPSC was melt-mixed with epoxidized natural rubber (ENR) (70/30 wt/wt). The tensile strength and elongation at break of the TPSC/ENR increased with the additive content. Elastic recovery was improved by the addition of Cl. A new peak in the FTIR data confirmed the reaction between the reactive functional groups of the CTS and the additives with the epoxy groups of ENR. These reactions and miscibility of the TPSC/ENR/additives blends improved the mechanical properties, elasticity, morphology, and antimicrobial properties of the blends.

ACS Style

Araya Kodsangma; Nattagarn Homsaard; Sudarut Nadon; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Chayatip Insomphun; Phisit Seesuriyachan; Thanongsak Chaiyaso; Pensak Jantrawut; Nakarin Inmutto; Toshiaki Ougizawa; Kittisak Jantanasakulwong. Effect of sodium benzoate and chlorhexidine gluconate on a bio-thermoplastic elastomer made from thermoplastic starch-chitosan blended with epoxidized natural rubber. Carbohydrate Polymers 2020, 242, 116421 .

AMA Style

Araya Kodsangma, Nattagarn Homsaard, Sudarut Nadon, Pornchai Rachtanapun, Noppol Leksawasdi, Yuthana Phimolsiripol, Chayatip Insomphun, Phisit Seesuriyachan, Thanongsak Chaiyaso, Pensak Jantrawut, Nakarin Inmutto, Toshiaki Ougizawa, Kittisak Jantanasakulwong. Effect of sodium benzoate and chlorhexidine gluconate on a bio-thermoplastic elastomer made from thermoplastic starch-chitosan blended with epoxidized natural rubber. Carbohydrate Polymers. 2020; 242 ():116421.

Chicago/Turabian Style

Araya Kodsangma; Nattagarn Homsaard; Sudarut Nadon; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Chayatip Insomphun; Phisit Seesuriyachan; Thanongsak Chaiyaso; Pensak Jantrawut; Nakarin Inmutto; Toshiaki Ougizawa; Kittisak Jantanasakulwong. 2020. "Effect of sodium benzoate and chlorhexidine gluconate on a bio-thermoplastic elastomer made from thermoplastic starch-chitosan blended with epoxidized natural rubber." Carbohydrate Polymers 242, no. : 116421.

Preprint
Published: 19 February 2020
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In order to obtain makhwean (MK) fruit essential oil of constant aromatic profile during raw material sourcing, evaluation of relationship between genotype, phenotype and chemical profiles are necessary. Three specimens of the MK (MK1-3) distributed in Northern Thailand were genetically and morphologically compared with other Zanthoxylum spices known locally as mamaad (MM) and makwoung (MKO), respectively. MM was taxonomical confirmed as Z. armatum based on plant structure and leaf characteristic (Odd-pinnately compound leaf). MKO and MK were identified as Z. rhetsa and Z. myriacanthum using number of petals and anthers. Genetic sequencing by Internal Transcribed Spacer (ITS) sequence and Random Amplified Polymorphic DNA moreover, divided these Zanthoxylum spps. into three groups accordingly to their species viz., MM, MKO and MK. Essential oil of the dried fruits from these samples was extracted and analysed for physical and chemical profiles. Cluster analysis (PCA-biplot) of volatile compositions was able to separate 1) MK1 and MK3 with limonene as leading component, 2) MK2 and MKO related with sabinene and β-philandrene, 3) MM with linalool. By using odour attribute representatives, the essential oil of MKO and MK1-3 were closely related possessing fruity, woody and citrus aromas, while the MM was sweet/ floral. In summary for MK raw material sourcing, plant genotyping played the most important role to odour characteristics than growing locations, thus plant species confirmation should be first considered.

ACS Style

Trid Sriwichai; Tonapha Phusadee; Jiratchaya Wisetkomolmat; Korawan Sringarm; Supamit Mekchay; Kittisak Jantanasakulwong; Kiattisak Duangmal; Sarana Sommano. Effect of Genotypic and Phenotypic Variations on Essential Oil Aromatic Profiles of Makwhaen Fruits. 2020, 1 .

AMA Style

Trid Sriwichai, Tonapha Phusadee, Jiratchaya Wisetkomolmat, Korawan Sringarm, Supamit Mekchay, Kittisak Jantanasakulwong, Kiattisak Duangmal, Sarana Sommano. Effect of Genotypic and Phenotypic Variations on Essential Oil Aromatic Profiles of Makwhaen Fruits. . 2020; ():1.

Chicago/Turabian Style

Trid Sriwichai; Tonapha Phusadee; Jiratchaya Wisetkomolmat; Korawan Sringarm; Supamit Mekchay; Kittisak Jantanasakulwong; Kiattisak Duangmal; Sarana Sommano. 2020. "Effect of Genotypic and Phenotypic Variations on Essential Oil Aromatic Profiles of Makwhaen Fruits." , no. : 1.

Journal article
Published: 24 October 2019 in Polymers
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Thermoplastic starch (TPS) was prepared by melt-mixing cassava starch with glycerol. Polyethylene (PE), polyethylene-grafted-maleic anhydride (PE-MAH) and poly(lactic acid) (PLA) solutions at 2% (w/v) were used to coat TPS using the dip coating process. The tensile strength of TPS increased with the dip coating solution technique, especially for PLA coating. Swelling index, water-soluble matter and water droplet contact angle confirmed the water resistant improvement of TPS by PE-MAH and the PLA dip coating solution. Plasticizer bleeding was found in uncoated TPS after storage, but not in the coated TPS. Coating TPS with PE-MAH and PLA improved the tensile properties, water resistance and conquered plasticizer bleeding problems in TPS.

ACS Style

Kittisak Jantanasakulwong; Nattagarn Homsaard; Phanurot Phengchan; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Charin Techapun; Pensak Jantrawut. Effect of Dip Coating Polymer Solutions on Properties of Thermoplastic Cassava Starch. Polymers 2019, 11, 1746 .

AMA Style

Kittisak Jantanasakulwong, Nattagarn Homsaard, Phanurot Phengchan, Pornchai Rachtanapun, Noppol Leksawasdi, Yuthana Phimolsiripol, Charin Techapun, Pensak Jantrawut. Effect of Dip Coating Polymer Solutions on Properties of Thermoplastic Cassava Starch. Polymers. 2019; 11 (11):1746.

Chicago/Turabian Style

Kittisak Jantanasakulwong; Nattagarn Homsaard; Phanurot Phengchan; Pornchai Rachtanapun; Noppol Leksawasdi; Yuthana Phimolsiripol; Charin Techapun; Pensak Jantrawut. 2019. "Effect of Dip Coating Polymer Solutions on Properties of Thermoplastic Cassava Starch." Polymers 11, no. 11: 1746.

Research article
Published: 08 January 2019 in Advances in Materials Science and Engineering
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Carboxymethyl chitosan (CMCH) from different chitosan sources (shrimp, crab, and squid) and molecular sizes (polymer and oligomer) were synthesized via carboxymethylation reaction. The CMCH films were prepared by solution casting. All the CMCH films had high water solubility, higher than 85% of the dry matter of the films. The sorption isotherm of the CMCH films was evaluated at several values of relative humidity (0% RH, 23% RH, 34% RH, 43% RH, 65% RH, 77% RH, and 86% RH) at 25 ± 1°C. The equilibrium moisture content values of all the CMCH films were low at lower aw but increased considerably above aw = 0.65. The sigmoidal moisture sorption isotherms of this product can be classified as type II. Understanding of sorption isotherms is an important prerequisite for the prediction of moisture sorption properties of films via moisture sorption empirical models. The experimental data were analyzed and fitted by the nine sorption models. The various constants determined by linear fitting of the sorption equation with r2 values were in the range of 0.7647 to 0.999. The GAB model was found to be the best-fitted model for CMCH films (aw = 0.23–0.86, 25 ± 1°C), and the model presented the optimal root-mean-square percentage error (%RMS) values when compared with other models. In conclusion, it can be stated that the GAB model was found to be better estimated for predicting the CMCH films than other models. Therefore, the constant derived from different sorption models were applied for use in terms of information and for the determination of the stability of CMCH packaging films for specific end uses.

ACS Style

Juthamas Tantala; Chitsiri Rachtanapun; Wirongrong Tongdeesoontorn; Kittisak Jantanasakulwong; Pornchai Rachtanapun. Moisture Sorption Isotherms and Prediction Models of Carboxymethyl Chitosan Films from Different Sources with Various Plasticizers. Advances in Materials Science and Engineering 2019, 2019, 1 -18.

AMA Style

Juthamas Tantala, Chitsiri Rachtanapun, Wirongrong Tongdeesoontorn, Kittisak Jantanasakulwong, Pornchai Rachtanapun. Moisture Sorption Isotherms and Prediction Models of Carboxymethyl Chitosan Films from Different Sources with Various Plasticizers. Advances in Materials Science and Engineering. 2019; 2019 ():1-18.

Chicago/Turabian Style

Juthamas Tantala; Chitsiri Rachtanapun; Wirongrong Tongdeesoontorn; Kittisak Jantanasakulwong; Pornchai Rachtanapun. 2019. "Moisture Sorption Isotherms and Prediction Models of Carboxymethyl Chitosan Films from Different Sources with Various Plasticizers." Advances in Materials Science and Engineering 2019, no. : 1-18.

Journal article
Published: 14 October 2018 in Polymers
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This study aims to develop orange oil loaded in thin mango peel pectin films and evaluate their antibacterial activity against Staphylococcus aureus. The mango peel pectin was obtained from the extraction of ripe Nam Dokmai mango peel by the microwave-assisted method. The thin films were formulated using commercial low methoxy pectin (P) and mango pectin (M) at a ratio of 1:2 with and without glycerol as a plasticizer. Orange oil was loaded into the films at 3% w/w. The orange oil film containing P and M at ratio of 1:2 with 40% w/w of glycerol (P1M2GO) showed the highest percent elongation (12.93 ± 0.89%) and the lowest Young’s modulus values (35.24 ± 3.43 MPa). For limonene loading content, it was found that the amount of limonene after the film drying step was directly related to the final physical structure of the film. Among the various tested films, P1M2GO film had the lowest limonene loading content (59.25 ± 2.09%), which may be because of the presence of numerous micropores in the P1M2GO film’s matrix. The inhibitory effect against the growth of S. aureus was compared in normalized value of clear zone diameter using the normalization value of limonene content in each film. The P1M2GO film showed the highest inhibitory effect against S. aureus with the normalized clear zone of 11.75 mm but no statistically significant difference. This study indicated that the orange oil loaded in mango peel pectin film can be a valuable candidate as antibacterial material for food packaging.

ACS Style

Tanpong Chaiwarit; Warintorn Ruksiriwanich; Kittisak Jantanasakulwong; Pensak Jantrawut. Use of Orange Oil Loaded Pectin Films as Antibacterial Material for Food Packaging. Polymers 2018, 10, 1144 .

AMA Style

Tanpong Chaiwarit, Warintorn Ruksiriwanich, Kittisak Jantanasakulwong, Pensak Jantrawut. Use of Orange Oil Loaded Pectin Films as Antibacterial Material for Food Packaging. Polymers. 2018; 10 (10):1144.

Chicago/Turabian Style

Tanpong Chaiwarit; Warintorn Ruksiriwanich; Kittisak Jantanasakulwong; Pensak Jantrawut. 2018. "Use of Orange Oil Loaded Pectin Films as Antibacterial Material for Food Packaging." Polymers 10, no. 10: 1144.