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Peanut is an important resource of edible oil and digestible protein in daily life, which is rich in the nutriments and antioxidants such as vitamins, minerals and polyphenols. However, peanut is susceptible to the contamination of Aspergillus flavus (A. flavus), which can produce highly carcinogenic toxins that brings serious threats to human health and food safety. Exploring green and effective methods to control A. flavus is meaningful. Herein, a green and economical way to control A. flavus on peanuts was demonstrated. It was found that the growth of A. flavus hyphae and germination of its spores could be inhibited in the presence of α-Fe2O3 nanorods under sunlight irradiation according to the agar diffusion method, flat colony counting method and fluorescence-based live/dead test. The diameter of inhibition zone was 22.3 ± 0.2 mm and the inhibition rate of spores germination was about 60 ± 5%, when the concentration of α-Fe2O3 was 10 mg/mL for 7 h sunlight irradiation. Most important, α-Fe2O3 showed the photocatalytic inhibition of A. flavus on peanuts under sunlight irradiation with the inhibition rate of about 90 ± 5%, and the production of aflatoxin B1 and aflatoxin B2 were reduced by 90 ± 2% and 70 ± 3%, respectively. By comparing the fat contents, protein contents, acid value, peroxide value and antioxidative compositions of peanuts, it was found that there was no obvious effect on the quality of peanuts after inhibition treatment. The findings provide a green, safe and economical strategy to control A. flavus on peanuts, which may be as a promising way to be used in food and agro-food preservation.
Di Sun; Jin Mao; Zhijian Wang; Hui Li; Liangxiao Zhang; Wen Zhang; Qi Zhang; Peiwu Li. Inhibition of Aspergillus flavus growth and aflatoxins production on peanuts over α-Fe2O3 nanorods under sunlight irradiation. International Journal of Food Microbiology 2021, 353, 109296 .
AMA StyleDi Sun, Jin Mao, Zhijian Wang, Hui Li, Liangxiao Zhang, Wen Zhang, Qi Zhang, Peiwu Li. Inhibition of Aspergillus flavus growth and aflatoxins production on peanuts over α-Fe2O3 nanorods under sunlight irradiation. International Journal of Food Microbiology. 2021; 353 ():109296.
Chicago/Turabian StyleDi Sun; Jin Mao; Zhijian Wang; Hui Li; Liangxiao Zhang; Wen Zhang; Qi Zhang; Peiwu Li. 2021. "Inhibition of Aspergillus flavus growth and aflatoxins production on peanuts over α-Fe2O3 nanorods under sunlight irradiation." International Journal of Food Microbiology 353, no. : 109296.
Aspergillus flavus can cause crop loss and produce mycotoxin that bring serious threats to human health. The large usage of chemical pesticides or fungicides might cause environmental problems and fungal resistance. Therefore, developing the novel, low possibility of resistance and pro-environment way to control and reduce this fungi is meaningful. Herein, an efficient, environmental-friendly and photocatalytic method to disinfect Aspergillus flavus was demonstrated on magnetic and Z-schematic composites. The composites were composed of rhombic NiFe2O4 nanosheets and g-C3N4 nanosized sheets, and 0.2 g-C3N4/NiFe2O4 (mass ratio) showed the excellent activity with above 90% disinfection rate under 90 min visible light irradiation. The efficient disinfection activities were ascribed to the favorable charges separation, well photoelectric properties and suitable band structure. It was found that the •O2− and •OH were the main active radical species in photocatalytic disinfection. The attack of these species could cause the destruction of fungal cell structure and the leakage of intracellular contents as proved by the fluorescence staining of spores, biological scanning electron microscope and the detection of extracellular protein and DNA. Moreover, the composites also showed high photocatalytic disinfection activity of Aspergillus flavus on peanuts, which can reduce aflatoxin B1 from 315.21 µg kg-1 to 18.50 µg kg-1. This efficient method might be considered as a potential way to control the contamination of Aspergillus flavus, and as a reference to the mitigation of other pathogenic fungi in future.
Di Sun; Jin Mao; Ling Cheng; Xianglong Yang; Hui Li; Liangxiao Zhang; Wen Zhang; Qi Zhang; Peiwu Li. Magnetic g-C3N4/NiFe2O4 composite with enhanced activity on photocatalytic disinfection of Aspergillus flavus. Chemical Engineering Journal 2021, 418, 129417 .
AMA StyleDi Sun, Jin Mao, Ling Cheng, Xianglong Yang, Hui Li, Liangxiao Zhang, Wen Zhang, Qi Zhang, Peiwu Li. Magnetic g-C3N4/NiFe2O4 composite with enhanced activity on photocatalytic disinfection of Aspergillus flavus. Chemical Engineering Journal. 2021; 418 ():129417.
Chicago/Turabian StyleDi Sun; Jin Mao; Ling Cheng; Xianglong Yang; Hui Li; Liangxiao Zhang; Wen Zhang; Qi Zhang; Peiwu Li. 2021. "Magnetic g-C3N4/NiFe2O4 composite with enhanced activity on photocatalytic disinfection of Aspergillus flavus." Chemical Engineering Journal 418, no. : 129417.
BACKGROUND Konjac glucomannan (KGM) showed a synergistic interaction with κ‐carrageenan (CAR), which led to the formation of a promising compound hydrocolloid gel in the food field (such as jelly). Nevertheless, the mixed gels formed by adding KGM to CAR still displayed defects in gel strength and syneresis, and would hardly meet the quality requirements of some gel foods. However, deacetylated KGM and maltodextrin (MD) have always been used in gel foods and affect their viscosity and rheological properties. RESULTS In our paper, different amounts of MD were first used to alter the textural properties, and the results showed that both tensile strength and elongation exhibited first an increasing and then a decreasing trend with the increasing MD proportion and achieved a maximum at a final maltodextrin proportion of 4 g kg−1 in the KGM/CAR/MD system. Based on the above results, we further explored the effects of deacetylation degree of KGM on the gel properties of mixed gel system. The results revealed that, compared to the native KGM, the partial deacetylated KGM was capable of significantly improving the tensile strength and elongation of KGM/CAR mixed gel. CONCLUSION Our study found that the appropriate addition of MD (0.4%) and DKGM were able to alter the tensile properties of KGM/CAR mixed gel, with potential to meet the needs of consumers and further design innovative tensile gel products in the soft gel industry. © 2021 Society of Chemical Industry
Di Wu; Simin Yu; Hongshan Liang; Mohamed Eid; Bin Li; Jing Li; Jin Mao. An innovative konjac glucomannan/ κ‐carrageenan mixed tensile gel. Journal of the Science of Food and Agriculture 2021, 101, 5067 -5074.
AMA StyleDi Wu, Simin Yu, Hongshan Liang, Mohamed Eid, Bin Li, Jing Li, Jin Mao. An innovative konjac glucomannan/ κ‐carrageenan mixed tensile gel. Journal of the Science of Food and Agriculture. 2021; 101 (12):5067-5074.
Chicago/Turabian StyleDi Wu; Simin Yu; Hongshan Liang; Mohamed Eid; Bin Li; Jing Li; Jin Mao. 2021. "An innovative konjac glucomannan/ κ‐carrageenan mixed tensile gel." Journal of the Science of Food and Agriculture 101, no. 12: 5067-5074.
Vegetable oils are essential daily diet, but they are simply contaminated with aflatoxin B1 (AFB1), a serious toxic compound to human health. Adsorption method due to the easy operation, high efficiency and low costing is set to become a main detoxification technique for AFB1. Unfortunately, previous reported adsorbents were rarely used for detoxification in food industry since they cannot meet the criteria of large-scale production of edible oils. Metal-organic frameworks (MOFs) with unique textural properties could be favorable precursors for synthesis of advanced materials. In this research, three kinds of Cu-BTC MOF-derived porous materials were prepared by different carbonization temperature and characterized by XRD, SEM, FT-IR, and nitrogen adsorption-desorption techniques. Isotherm and kinetic studies on the adsorption behaviour of AFB1 onto the three porous carbonaceous materials have been systematically conducted. The results revealed that the porous carbonaceous materials could act as the excellent adsorbents that were of enough adsorption sites for AFB1, mainly due to the hierarchical porous structure and large surface areas for the enhancement of adsorption capacity. Notably, the porous carbonaceous materials could not only remove more than 90% of AFB1 from real vegetable oils within 30 min, but also remain the treated oils at low cytotoxicity. Meanwhile, the detoxification process could little affect the quality of oils. Thus, the Cu-BTC MOF-derived porous carbonaceous materials with high efficiency, safe, practical and economic characteristics could be novel potential adsorbents used in the application of AFB1 removal from contaminated vegetable oils.
Fei Ma; Xinfa Cai; Jin Mao; Li Yu; Peiwu Li. Adsorptive removal of aflatoxin B1 from vegetable oils via novel adsorbents derived from a metal-organic framework. Journal of Hazardous Materials 2021, 412, 125170 .
AMA StyleFei Ma, Xinfa Cai, Jin Mao, Li Yu, Peiwu Li. Adsorptive removal of aflatoxin B1 from vegetable oils via novel adsorbents derived from a metal-organic framework. Journal of Hazardous Materials. 2021; 412 ():125170.
Chicago/Turabian StyleFei Ma; Xinfa Cai; Jin Mao; Li Yu; Peiwu Li. 2021. "Adsorptive removal of aflatoxin B1 from vegetable oils via novel adsorbents derived from a metal-organic framework." Journal of Hazardous Materials 412, no. : 125170.
Natural toxic contaminants have been recognized as threats to human health. Ustiloxins are the toxic secondary metabolites of fungus generated from rice false smut disease, which are harmful to animal/human reproduction and growth. However, there are rare researches on the control and reduction of ustiloxins through physical, chemical and biological ways. Herein, we demonstrated that photocatalysis of semiconductor nanomaterials could be as a potential way to degrade or mitigate the contamination of ustiloxin A. A kind of wormlike graphitic carbon nitride (g-C3N4) was facilely prepared from modified dicyandiamide precursor via pyrolysis method and characterized by X-ray diffraction, high-resolution transmission electron microscope and X-ray photoelectron spectroscopy etc. It was found that g-C3N4 from modified dicyandiamide precursor showed better activity for ustiloxin A degradation under visible light irradiation than that of pristine g-C3N4. This was ascribed to the lager specific surface area, more uniform microstructure, better photogenerated charges separation and transformation of wormlike g-C3N4 compared with pristine g-C3N4. Most important, the structure of degradation intermediates and the possible pathway were proposed based on the results of high-performance liquid chromatography-mass spectrometry after 80 min photoreaction treatment. Our findings may provide a green, efficient way for ustiloxins mitigation and useful information for future study.
Yanfei Wu; Jin Mao; Chuanwei Ao; Di Sun; Xiaorui Wang; Qin Hu; Xuezhu Du; Feng Sheng. Facile Preparation of Wormlike Graphitic Carbon Nitride for Photocatalytic Degradation of Ustiloxin A. Nanomaterials 2020, 10, 2256 .
AMA StyleYanfei Wu, Jin Mao, Chuanwei Ao, Di Sun, Xiaorui Wang, Qin Hu, Xuezhu Du, Feng Sheng. Facile Preparation of Wormlike Graphitic Carbon Nitride for Photocatalytic Degradation of Ustiloxin A. Nanomaterials. 2020; 10 (11):2256.
Chicago/Turabian StyleYanfei Wu; Jin Mao; Chuanwei Ao; Di Sun; Xiaorui Wang; Qin Hu; Xuezhu Du; Feng Sheng. 2020. "Facile Preparation of Wormlike Graphitic Carbon Nitride for Photocatalytic Degradation of Ustiloxin A." Nanomaterials 10, no. 11: 2256.
Food adulteration is a challenge faced by consumers and researchers. Due to DNA fragmentation during oil processing, it is necessary to discover metabolic markers alternative to DNA for adulteration detection of edible oils. However, the contents of metabolic markers vary in response to various factors, such as plant species, varieties, geographical origin, climate, and cultivation measures. Thus, it is difficult to identify a universal marker for all adulterants that may be present in some authentic samples. Currently, the specificity and selectivity of metabolic biomarkers are difficult to validate. Therefore, this study developed a screening strategy based on plant metabolic networks by developing a targeted analytical method for 56 metabolites in a metabolic network, using liquid/liquid extraction–liquid chromatography–tandem mass spectrometry (LC-MS/MS). We identified a chain of 11 metabolites that were related to isoflavonoid biosynthesis, which were detected in soybean oils but not rapeseed oils. Through multiple-marker mutual validation, these metabolites can be used as species-specific universal markers to differentiate soybean oil from rapeseed oil. Moreover, this method provides a model for screening characteristic markers of other edible vegetable oils and foods.
Xinjing Dou; Liangxiao Zhang; Xiao Wang; Ruinan Yang; Xuefang Wang; Fei Ma; Li Yu; Jin Mao; Hui Li; Xiupin Wang; Peiwu Li. Identification and Validation of Metabolic Markers for Adulteration Detection of Edible Oils Using Metabolic Networks. Metabolites 2020, 10, 85 .
AMA StyleXinjing Dou, Liangxiao Zhang, Xiao Wang, Ruinan Yang, Xuefang Wang, Fei Ma, Li Yu, Jin Mao, Hui Li, Xiupin Wang, Peiwu Li. Identification and Validation of Metabolic Markers for Adulteration Detection of Edible Oils Using Metabolic Networks. Metabolites. 2020; 10 (3):85.
Chicago/Turabian StyleXinjing Dou; Liangxiao Zhang; Xiao Wang; Ruinan Yang; Xuefang Wang; Fei Ma; Li Yu; Jin Mao; Hui Li; Xiupin Wang; Peiwu Li. 2020. "Identification and Validation of Metabolic Markers for Adulteration Detection of Edible Oils Using Metabolic Networks." Metabolites 10, no. 3: 85.
Aflatoxin contamination has been causing great concern worldwide due to the major economic impact on crop production and their toxicological effects to human and animals. Contamination can occur in the field, during transportation, and also in storage. Post-harvest contamination usually derives from the pre-harvest infection of aflatoxigenic molds, especially aflatoxin-producing Aspergilli such as Aspergillus flavus and A. parasiticus. Many strategies preventing aflatoxigenic molds from entering food and feed chains have been reported, among which biological control is becoming one of the most praised strategies. The objective of this article is to review the biocontrol strategy for inhibiting the growth of and aflatoxin production by aflatoxigenic fungi. This review focuses on comparing inhibitory behaviors of different antagonistic microorganisms including various bacteria, fungi and yeasts. We also reviewed the bioactive compounds produced by microorganisms and the mechanisms leading to inhibition. The key factors influencing antifungal activities of antagonists are also discussed in this review.
Xianfeng Ren; Qi Zhang; Wen Zhang; Jin Mao; Peiwu Li. Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors. Toxins 2020, 12, 24 .
AMA StyleXianfeng Ren, Qi Zhang, Wen Zhang, Jin Mao, Peiwu Li. Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors. Toxins. 2020; 12 (1):24.
Chicago/Turabian StyleXianfeng Ren; Qi Zhang; Wen Zhang; Jin Mao; Peiwu Li. 2020. "Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors." Toxins 12, no. 1: 24.
Rapeseed is an important oilseed with proper fatty acid composition and abundant bioactive components. Canada and China are the two major rapeseed-producing countries all over the world. Meanwhile, Canada and Mongolia are major importers of rapeseed due to the great demand for rapeseed in China. To investigate the metabolites in rapeseeds from three countries, ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS)-based metabolomics was employed to analyze rapeseeds from China, Canada, and Mongolia. As results, 67, 53, and 68 metabolites showed significant differences between Chinese and Canadian, Chinese and Mongolian, and Canadian and Mongolian rapeseeds, respectively. Differential metabolites were mainly distributed in the metabolic pathways including phenylpropanoid biosynthesis, flavone and flavonol biosynthesis, and ubiquinone and other terpenoid-quinone biosynthesis. Among the differential metabolites, contents of sinapate and sinapine were higher in Chinese rapeseeds, while the contents of brassicasterol, stigmasterol, and campestanol were higher in Canadian rapeseeds. These findings might provide insight into the metabolic characteristics of rapeseeds from three countries to guide processing and consumption of the products of rapeseed.
Ruinan Yang; Ligang Deng; Liangxiao Zhang; Xiaofeng Yue; Jin Mao; Fei Ma; Xiupin Wang; Qi Zhang; Wen Zhang; Peiwu Li. Comparative Metabolomic Analysis of Rapeseeds from Three Countries. Metabolites 2019, 9, 161 .
AMA StyleRuinan Yang, Ligang Deng, Liangxiao Zhang, Xiaofeng Yue, Jin Mao, Fei Ma, Xiupin Wang, Qi Zhang, Wen Zhang, Peiwu Li. Comparative Metabolomic Analysis of Rapeseeds from Three Countries. Metabolites. 2019; 9 (8):161.
Chicago/Turabian StyleRuinan Yang; Ligang Deng; Liangxiao Zhang; Xiaofeng Yue; Jin Mao; Fei Ma; Xiupin Wang; Qi Zhang; Wen Zhang; Peiwu Li. 2019. "Comparative Metabolomic Analysis of Rapeseeds from Three Countries." Metabolites 9, no. 8: 161.
A method was developed to simultaneously determine eight bioactive compounds in camellia oil based on ultrasound-assisted saponification, liquid-liquid extraction and liquid chromatography coupled with tandem mass spectrometry. Central composite design was employed to optimize ultrasonic temperature and time of saponification. Sample treatment was conducted by ultrasound-assisted saponification at temperature of 75°C for 40 min. Limits of detection and limits of quantification ranged from 2.0 to 3.2 and from 6.1 to 10.0 ng/mL, respectively. Linear correlations were obtained (R2>0.9904) and the recoveries at three spiked levels were between 81.7% and 112.0%. This method was employed to determine eight compounds in camellia oils and olive oils. As results, the contents of stigmasterol, δ-tocopherol, γ-tocopherol, β-carotene and lutein in camellia oils were significantly higher than those in olive oils (p<0.05). The proposed method can be successfully used to determination of these eight active compounds in camellia oil and other edible oils.
Liangxiao Zhang; Sujun Wang; Ruinan Yang; Jin Mao; Jun Jiang; Xiupin Wang; Wen Zhang; Qi Zhang; Peiwu Li. Simultaneous determination of tocopherols, carotenoids and phytosterols in edible vegetable oil by ultrasound-assisted saponification, LLE and LC-MS/MS. Food Chemistry 2019, 289, 313 -319.
AMA StyleLiangxiao Zhang, Sujun Wang, Ruinan Yang, Jin Mao, Jun Jiang, Xiupin Wang, Wen Zhang, Qi Zhang, Peiwu Li. Simultaneous determination of tocopherols, carotenoids and phytosterols in edible vegetable oil by ultrasound-assisted saponification, LLE and LC-MS/MS. Food Chemistry. 2019; 289 ():313-319.
Chicago/Turabian StyleLiangxiao Zhang; Sujun Wang; Ruinan Yang; Jin Mao; Jun Jiang; Xiupin Wang; Wen Zhang; Qi Zhang; Peiwu Li. 2019. "Simultaneous determination of tocopherols, carotenoids and phytosterols in edible vegetable oil by ultrasound-assisted saponification, LLE and LC-MS/MS." Food Chemistry 289, no. : 313-319.
Deoxynivalenol (DON) is a secondary metabolite produced by Fusarium, which is a trichothecene mycotoxin. As the main mycotoxin with high toxicity, wheat, barley, corn and their products are susceptible to contamination of DON. Due to the stability of this mycotoxin, traditional methods for DON reduction often require a strong oxidant, high temperature and high pressure with more energy consumption. Therefore, exploring green, efficient and environmentally friendly ways to degrade or reduce DON is a meaningful and challenging issue. Herein, a dendritic-like α-Fe2O3 was successfully prepared using a facile hydrothermal synthesis method at 160 °C, which was systematically characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). It was found that dendritic-like α-Fe2O3 showed superior activity for the photocatalytic degradation of DON in aqueous solution under visible light irradiation (λ > 420 nm) and 90.3% DON (initial concentration of 4.0 μg/mL) could be reduced in 2 h. Most of all, the main possible intermediate products were proposed through high performance liquid chromatography-mass spectrometry (HPLC-MS) after the photocatalytic treatment. This work not only provides a green and promising way to mitigate mycotoxin contamination but also may present useful information for future studies.
Huiting Wang; Jin Mao; Zhaowei Zhang; Qi Zhang; Liangxiao Zhang; Peiwu Li; Wen Zhang. Photocatalytic degradation of deoxynivalenol over dendritic-like α-Fe2O3 under visible light irradiation. Toxins 2019, 11, 105 .
AMA StyleHuiting Wang, Jin Mao, Zhaowei Zhang, Qi Zhang, Liangxiao Zhang, Peiwu Li, Wen Zhang. Photocatalytic degradation of deoxynivalenol over dendritic-like α-Fe2O3 under visible light irradiation. Toxins. 2019; 11 (2):105.
Chicago/Turabian StyleHuiting Wang; Jin Mao; Zhaowei Zhang; Qi Zhang; Liangxiao Zhang; Peiwu Li; Wen Zhang. 2019. "Photocatalytic degradation of deoxynivalenol over dendritic-like α-Fe2O3 under visible light irradiation." Toxins 11, no. 2: 105.
Aflatoxin B1 (AFB1) is regarded as a main biological pollutant with high toxicity, carcinogenicity and teratogenicity, and the double bond (C8 = C9) of its terminal furan ring is the key hypertoxic site. Although semiconductor photocatalysis has been proposed to be a potential way of reducing or inactivating the toxicity of AFB1, the reaction mechanism of reactive oxygen species with the hypertoxic site has not been defined so far. Herein, a kind of all-solid-state Z-schematic composite was fabricated by depositing CdS on the surface of clew-like WO3, which can sharply reduce the toxicity of aflatoxin B1 in aqueous solution under visible light irradiation according to the cytotoxicity test result. On the bases of high resolution mass spectrum (HRMS), radical trapping test and 18O isotope-labeling studies, it can be concluded that the preferentially inactivating the C8 = C9 site by the addition reaction of hydroxyl radical was the main pathway for the detoxification of aflatoxin B1. Furthermore, density functional theory (DFT) calculations were applied to reveal the reaction mechanism and verify that the hydroxyl radicals were most likely to react with the C9 site, and then form AFB1-9-hydroxy. This work provides in-depth insights into the inactivation mechanism of hypertoxic site in AFB1, and the design of efficient photocatalysts for alleviating the risk of toxic pollutants.
Jin Mao; Peiwu Li; Jinming Wang; Huiting Wang; Qi Zhang; Liangxiao Zhang; Hui Li; Wen Zhang; Tianyou Peng. Insights into photocatalytic inactivation mechanism of the hypertoxic site in aflatoxin B1 over clew-like WO3 decorated with CdS nanoparticles. Applied Catalysis B: Environmental 2019, 248, 477 -486.
AMA StyleJin Mao, Peiwu Li, Jinming Wang, Huiting Wang, Qi Zhang, Liangxiao Zhang, Hui Li, Wen Zhang, Tianyou Peng. Insights into photocatalytic inactivation mechanism of the hypertoxic site in aflatoxin B1 over clew-like WO3 decorated with CdS nanoparticles. Applied Catalysis B: Environmental. 2019; 248 ():477-486.
Chicago/Turabian StyleJin Mao; Peiwu Li; Jinming Wang; Huiting Wang; Qi Zhang; Liangxiao Zhang; Hui Li; Wen Zhang; Tianyou Peng. 2019. "Insights into photocatalytic inactivation mechanism of the hypertoxic site in aflatoxin B1 over clew-like WO3 decorated with CdS nanoparticles." Applied Catalysis B: Environmental 248, no. : 477-486.
Jin Mao; Qi Zhang; Peiwu Li; Liangxiao Zhang. Geometric architecture design of ternary composites for AFB1 photocatalytic degradation under visible light. Toxicon 2019, 158, S14 .
AMA StyleJin Mao, Qi Zhang, Peiwu Li, Liangxiao Zhang. Geometric architecture design of ternary composites for AFB1 photocatalytic degradation under visible light. Toxicon. 2019; 158 ():S14.
Chicago/Turabian StyleJin Mao; Qi Zhang; Peiwu Li; Liangxiao Zhang. 2019. "Geometric architecture design of ternary composites for AFB1 photocatalytic degradation under visible light." Toxicon 158, no. : S14.
In natural science, models could grant new insights into phenomena or scientific problems which are hard to be observed or otherwise explained to overcome the limitations of human beings. Routinely, scientists strive to develop new methods for data acquisition, preprocessing, variable selection, modeling and valuation with the help of statistics and machine learning theories. Theoretically, the aim of these methods is global or local optimization in the space of variables and linear/nonlinear combinations for classification or regression. However, the relationships between responses and features are often complex and therefore sometimes far from linear or fixed nonlinear model. In this study, we proposed the relational variable (e.g. ratio between two variables) for more accurate prediction performance of models and illustrated its application on three classic data. We found that the selected relational variables could significantly improve the accuracy of prediction. The software was complemented on the MATLAB R2015a platform in Windows Server 2012 R2 standard. The Matlab codes used in this study are publicly available at http://www.libpls.net.
Zhe Yuan; Liangxiao Zhang; Ruinan Yang; Jin Mao; Qi Zhang; Peiwu Li. Relational variable for more accurate prediction of models. Chemometrics and Intelligent Laboratory Systems 2018, 180, 84 -87.
AMA StyleZhe Yuan, Liangxiao Zhang, Ruinan Yang, Jin Mao, Qi Zhang, Peiwu Li. Relational variable for more accurate prediction of models. Chemometrics and Intelligent Laboratory Systems. 2018; 180 ():84-87.
Chicago/Turabian StyleZhe Yuan; Liangxiao Zhang; Ruinan Yang; Jin Mao; Qi Zhang; Peiwu Li. 2018. "Relational variable for more accurate prediction of models." Chemometrics and Intelligent Laboratory Systems 180, no. : 84-87.
Chemical composition of secondary metabolites is of great importance for quality control of agricultural products. Black sesame seeds are significantly more expensive than white sesame seeds, because it is thought that black sesame seeds are more beneficial to human health than white sesame seeds. However, the differences in nutrient composition between black sesame seeds and white sesame seeds are still unknown. The current study examined the levels of different metabolites in black and white sesame seeds via the use of a novel metabolomics strategy. Using widely targeted metabolomics data, we obtained the structure and content of 557 metabolites, out of which 217 metabolites were identified, and discovered 30 metabolic pathways activated by the secondary metabolites in both black and white sesame seeds. Our results demonstrated that the main pathways that were differentially activated included: phenylpropanoid biosynthesis, tyrosine metabolism, and riboflavin metabolism. More importantly, the biomarkers that were significantly different between black seeds and white sesame seeds are highly related to the functions recorded in traditional Chinese medicine. The results of this study may serve as a new theoretical reference for breeding experts to promote the genetic improvement of sesame seeds, and therefore the cultivation of higher quality sesame varieties.
Dandan Wang; Liangxiao Zhang; Xiaorong Huang; Xiao Wang; Ruinan Yang; Jin Mao; Xuefang Wang; Xiupin Wang; Qi Zhang; Peiwu Li. Identification of Nutritional Components in Black Sesame Determined by Widely Targeted Metabolomics and Traditional Chinese Medicines. Molecules 2018, 23, 1180 .
AMA StyleDandan Wang, Liangxiao Zhang, Xiaorong Huang, Xiao Wang, Ruinan Yang, Jin Mao, Xuefang Wang, Xiupin Wang, Qi Zhang, Peiwu Li. Identification of Nutritional Components in Black Sesame Determined by Widely Targeted Metabolomics and Traditional Chinese Medicines. Molecules. 2018; 23 (5):1180.
Chicago/Turabian StyleDandan Wang; Liangxiao Zhang; Xiaorong Huang; Xiao Wang; Ruinan Yang; Jin Mao; Xuefang Wang; Xiupin Wang; Qi Zhang; Peiwu Li. 2018. "Identification of Nutritional Components in Black Sesame Determined by Widely Targeted Metabolomics and Traditional Chinese Medicines." Molecules 23, no. 5: 1180.
With a continuous increase in population and economic development, the demand for high quality seed oils keeps increasing in China. In the last decades, many minor edible oils become increasing and popular. In this review, the chemical composition and nutritional properties of minor edible oils, including flaxseed oil, corn oil, rice bran oil, camellia oil, safflower oil, almond oil, grape seed oil, walnut oil, perilla seed oil, pumpkin seed oil, evening primrose oil, Eucommia ulmoides oliver seed oil, penoy seed oil, sea buckthorn seed oil, Acer truncatum Bunge seed oil, Torreya grandis seed oil and tomato seed oil, were summarized. The characteristic chemical compositions of these 17 kinds of minor edible oils were analyzed from fatty acid composition, phytosterols, tocopherols, total phenolic content, squalene and β-carotene contents. Different types of vegetable oils have their own specific advantages and biological activities, and appropriate vegetable oils can be selected to meet individual needs accordingly. For example, Acer truncatum Bunge seed oil contains 5.55% nervonic acid (C24:1) that can promote the repair and regeneration of nerve cells and tissues damaged, while corn oil and rice bran oil have higher contents of campesterol and total phytosterol and might be better choices for patients with high cholesterol and cardiovascular diseases. This review could benefit comprehensive understanding nutritional values of minor vegetable oils and future researching on nutrition and product development.
Ruinan Yang; Liangxiao Zhang; Peiwu Li; Li Yu; Jin Mao; Xiupin Wang; Qi Zhang. A review of chemical composition and nutritional properties of minor vegetable oils in China. Trends in Food Science & Technology 2018, 74, 26 -32.
AMA StyleRuinan Yang, Liangxiao Zhang, Peiwu Li, Li Yu, Jin Mao, Xiupin Wang, Qi Zhang. A review of chemical composition and nutritional properties of minor vegetable oils in China. Trends in Food Science & Technology. 2018; 74 ():26-32.
Chicago/Turabian StyleRuinan Yang; Liangxiao Zhang; Peiwu Li; Li Yu; Jin Mao; Xiupin Wang; Qi Zhang. 2018. "A review of chemical composition and nutritional properties of minor vegetable oils in China." Trends in Food Science & Technology 74, no. : 26-32.
Delamination of layer semiconductor materials into two-dimensional sheets can bring superior properties such as surface area, intrinsic carrier mobility and band structure. In this study, inerratic nanosized graphitic carbon nitride (g-C3N4) sheets with the lateral size of approximately 100 ± 50 nm are conveniently fabricated by ultrasonic exfoliation of bulk g-C3N4 that derived from thermolysis of dicyandiamide after recrystallization. The nanosized g-C3N4 sheets exhibit excellently higher photocatalytic performance toward aflatoxin B1 (AFB1) degradation under visible light than that of bulk g-C3N4. And the enhanced photocatalytic mechanisms are mainly due to the better photogenerated charges separation and larger surface area of nanosized g-C3N4 sheets, which are systematically confirmed by physicochemical and photoelectric characterization. Through identification of products structure, it is found that the initial photodegradation intermediate (C17H14O7) or main products (C14H16O4 and C12H10O4) of AFB1 after 2 h irradiation over bulk g-C3N4 and nanosized g-C3N4 sheets are different, which may be attributed to the photoactivities and number of active groups from both catalysts during photoreaction. Therefore, this work may provide referential information for preparation of inerratic nanosized sheets and understand the related photodegradation mechanism of aflatoxin B1.
Jin Mao; Liangxiao Zhang; Huiting Wang; Qi Zhang; Wen Zhang; Peiwu Li. Facile fabrication of nanosized graphitic carbon nitride sheets with efficient charge separation for mitigation of toxic pollutant. Chemical Engineering Journal 2018, 342, 30 -40.
AMA StyleJin Mao, Liangxiao Zhang, Huiting Wang, Qi Zhang, Wen Zhang, Peiwu Li. Facile fabrication of nanosized graphitic carbon nitride sheets with efficient charge separation for mitigation of toxic pollutant. Chemical Engineering Journal. 2018; 342 ():30-40.
Chicago/Turabian StyleJin Mao; Liangxiao Zhang; Huiting Wang; Qi Zhang; Wen Zhang; Peiwu Li. 2018. "Facile fabrication of nanosized graphitic carbon nitride sheets with efficient charge separation for mitigation of toxic pollutant." Chemical Engineering Journal 342, no. : 30-40.
Adulteration of edible oils has attracted attention from more researchers and consumers in recent years. Complex multispecies adulteration is a commonly used strategy to mask the traditional adulteration detection methods. Most of the researchers were only concerned about single targeted adulterants, however, it was difficult to identify complex multispecies adulteration or untargeted adulterants. To detect adulteration of edible oil, identification of characteristic markers of adulterants was proposed to be an effective method, which could provide a solution for multispecies adulteration detection. In this study, a simple method of multispecies adulteration detection for camellia oil (adulterated with soybean oil, peanut oil, rapeseed oil) was developed by quantifying chemical markers including four isoflavones, trans-resveratrol and sinapic acid, which used liquid chromatography tandem mass spectrometry (LC-MS/MS) combined with solid phase extraction (SPE). In commercial camellia oil, only two of them were detected of daidzin with the average content of 0.06 ng/g while other markers were absent. The developed method was highly sensitive as the limits of detection (LODs) ranged from 0.02 ng/mL to 0.16 ng/mL and the mean recoveries ranged from 79.7% to 113.5%, indicating that this method was reliable to detect potential characteristic markers in edible oils. Six target compounds for pure camellia oils, soybean oils, peanut oils and rapeseed oils had been analyzed to get the results. The validation results indicated that this simple and rapid method was successfully employed to determine multispecies adulteration of camellia oil adulterated with soybean, peanut and rapeseed oils.
Xinjing Dou; Jin Mao; Liangxiao Zhang; Huali Xie; Lin Chen; Li Yu; Fei Ma; Xiupin Wang; Qi Zhang; Peiwu Li. Multispecies Adulteration Detection of Camellia Oil by Chemical Markers. Molecules 2018, 23, 241 .
AMA StyleXinjing Dou, Jin Mao, Liangxiao Zhang, Huali Xie, Lin Chen, Li Yu, Fei Ma, Xiupin Wang, Qi Zhang, Peiwu Li. Multispecies Adulteration Detection of Camellia Oil by Chemical Markers. Molecules. 2018; 23 (2):241.
Chicago/Turabian StyleXinjing Dou; Jin Mao; Liangxiao Zhang; Huali Xie; Lin Chen; Li Yu; Fei Ma; Xiupin Wang; Qi Zhang; Peiwu Li. 2018. "Multispecies Adulteration Detection of Camellia Oil by Chemical Markers." Molecules 23, no. 2: 241.
Geometric architecture of composite photocatalytic system creates a favorable chance for enhanced photocatalytic activity, which is a challenging and rewarding direction in this area. Here, a novel and highly efficient three-components composite consisting of dispersive WO3 nanowires, g-C3N4 nanosheets and RGO as solid electron mediator was successfully designed, synthesized and characterized. The WO3/RGO/g-C3N4 composite exhibited markedly enhanced activity for the photocatalytic degradation of aflatoxin B1 under visible-light irradiation compared with single and binary catalysts. It was found that the synergistic effects coexisted in this ternary composites that depended on the geometric architecture and interface combination of components. The Z-scheme system formed when RGO was as an interlayer between WO3 and g-C3N4, while the mechanism was the heterojunction-type in absence of RGO. It was found that the O2−, h+ and OH were main active radicals during photodegradation of AFB1 over ternary composites, which was proved by the radical trapping tests and ESR detection. Finally, a probable enhanced photocatalytic degradation mechanism of ternary composites and the degradation products were also proposed. This work may not only provide beneficial information to design and synthesis of effective composites system, but also present a new way to remove the refractory natural pollutant.
Jin Mao; Qi Zhang; Peiwu Li; Liangxiao Zhang; Wen Zhang. Geometric architecture design of ternary composites based on dispersive WO3 nanowires for enhanced visible-light-driven activity of refractory pollutant degradation. Chemical Engineering Journal 2017, 334, 2568 -2578.
AMA StyleJin Mao, Qi Zhang, Peiwu Li, Liangxiao Zhang, Wen Zhang. Geometric architecture design of ternary composites based on dispersive WO3 nanowires for enhanced visible-light-driven activity of refractory pollutant degradation. Chemical Engineering Journal. 2017; 334 ():2568-2578.
Chicago/Turabian StyleJin Mao; Qi Zhang; Peiwu Li; Liangxiao Zhang; Wen Zhang. 2017. "Geometric architecture design of ternary composites based on dispersive WO3 nanowires for enhanced visible-light-driven activity of refractory pollutant degradation." Chemical Engineering Journal 334, no. : 2568-2578.
A highly sensitive aptasensor for aflatoxin M1 (AFM1) detection was constructed based on fluorescence resonance energy transfer (FRET) between 5-carboxyfluorescein (FAM) and palladium nanoparticles (PdNPs). PdNPs (33 nm) were synthesized through a seed-mediated growth method and exhibited broad and strong absorption in the whole ultraviolet-visible (UV-Vis) range. The strong coordination interaction between nitrogen functional groups of the AFM1 aptamer and PdNPs brought FAM and PdNPs in close proximity, which resulted in the fluorescence quenching of FAM to a maximum extent of 95%. The non-specific fluorescence quenching caused by PdNPs towards fluorescein was negligible. After the introduction of AFM1 into the FAM-AFM1 aptamer-PdNPs FRET system, the AFM1 aptamer preferentially combined with AFM1 accompanied by conformational change, which greatly weakened the coordination interaction between the AFM1 aptamer and PdNPs. Thus, fluorescence recovery of FAM was observed and a linear relationship between the fluorescence recovery and the concentration of AFM1 was obtained in the range of 5–150 pg/mL in aqueous buffer with the detection limit of 1.5 pg/mL. AFM1 detection was also realized in milk samples with a linear detection range from 6 pg/mL to 150 pg/mL. The highly sensitive FRET aptasensor with simple configuration shows promising prospect in detecting a variety of food contaminants.
Hui Li; Daibin Yang; Peiwu Li; Qi Zhang; Wen Zhang; Xiaoxia Ding; Jin Mao; Jing Wu. Palladium Nanoparticles-Based Fluorescence Resonance Energy Transfer Aptasensor for Highly Sensitive Detection of Aflatoxin M1 in Milk. Toxins 2017, 9, 318 .
AMA StyleHui Li, Daibin Yang, Peiwu Li, Qi Zhang, Wen Zhang, Xiaoxia Ding, Jin Mao, Jing Wu. Palladium Nanoparticles-Based Fluorescence Resonance Energy Transfer Aptasensor for Highly Sensitive Detection of Aflatoxin M1 in Milk. Toxins. 2017; 9 (10):318.
Chicago/Turabian StyleHui Li; Daibin Yang; Peiwu Li; Qi Zhang; Wen Zhang; Xiaoxia Ding; Jin Mao; Jing Wu. 2017. "Palladium Nanoparticles-Based Fluorescence Resonance Energy Transfer Aptasensor for Highly Sensitive Detection of Aflatoxin M1 in Milk." Toxins 9, no. 10: 318.
Liangxiao Zhang; Zhe Yuan; Peiwu Li; Xuefang Wang; Jin Mao; Qi Zhang; Chundi Hu. Targeted multivariate adulteration detection based on fatty acid profiles and Monte Carlo one-class partial least squares. Chemometrics and Intelligent Laboratory Systems 2017, 169, 94 -99.
AMA StyleLiangxiao Zhang, Zhe Yuan, Peiwu Li, Xuefang Wang, Jin Mao, Qi Zhang, Chundi Hu. Targeted multivariate adulteration detection based on fatty acid profiles and Monte Carlo one-class partial least squares. Chemometrics and Intelligent Laboratory Systems. 2017; 169 ():94-99.
Chicago/Turabian StyleLiangxiao Zhang; Zhe Yuan; Peiwu Li; Xuefang Wang; Jin Mao; Qi Zhang; Chundi Hu. 2017. "Targeted multivariate adulteration detection based on fatty acid profiles and Monte Carlo one-class partial least squares." Chemometrics and Intelligent Laboratory Systems 169, no. : 94-99.