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Dr. Manuela M. Moreira
REQUIMTE-LAQV-Instituto Superior de Engenharia do Instituto Politécnico do Porto

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0 Antioxidants
0 Biochar
0 Chromatographic Techniques
0 green extraction
0 By-products valorization

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Chromatographic Techniques

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Journal article
Published: 12 July 2021 in Applied Sciences
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The scientific community is increasingly concerned about the presence of pharmaceuticals in the aquatic environment, which is a consequence of their high consumption and inefficient removal by wastewater-treatment plants. The search for an effective and sustainable tertiary treatment is therefore needed to enhance their removal. For this purpose, the combination of electrochemical and adsorption processes into three-dimensional (3D) electrochemical systems has been proposed. In this study, a 3D system was studied to remove carbamazepine, an antiepileptic, consumed in high doses and very persistent in the environment. The influences of the following parameters on its removal were evaluated: anode and cathode materials and distance between them, electrolyte (NaCl) concentration and pH, and the (carbon-based) adsorbent material used as the particulate electrode. The obtained results demonstrated that the introduction of the particulate electrode improved the removal efficiency. This can be attributed to the simultaneous occurrence of different phenomena, such as adsorption/electrosorption, electrocoagulation, oxidation, and catalytic degradation.

ACS Style

Luísa Correia-Sá; Cristina Soares; Olga Freitas; Manuela Moreira; Henri Nouws; Manuela Correia; Paula Paíga; António Rodrigues; Carlos Oliveira; Sónia Figueiredo; Cristina Delerue-Matos. A Three-Dimensional Electrochemical Process for the Removal of Carbamazepine. Applied Sciences 2021, 11, 6432 .

AMA Style

Luísa Correia-Sá, Cristina Soares, Olga Freitas, Manuela Moreira, Henri Nouws, Manuela Correia, Paula Paíga, António Rodrigues, Carlos Oliveira, Sónia Figueiredo, Cristina Delerue-Matos. A Three-Dimensional Electrochemical Process for the Removal of Carbamazepine. Applied Sciences. 2021; 11 (14):6432.

Chicago/Turabian Style

Luísa Correia-Sá; Cristina Soares; Olga Freitas; Manuela Moreira; Henri Nouws; Manuela Correia; Paula Paíga; António Rodrigues; Carlos Oliveira; Sónia Figueiredo; Cristina Delerue-Matos. 2021. "A Three-Dimensional Electrochemical Process for the Removal of Carbamazepine." Applied Sciences 11, no. 14: 6432.

Journal article
Published: 21 June 2021 in Fuel
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In this work, a series of novel -SO3H functionalized biochar materials were prepared and investigated for the first time as catalysts for the production of fuel additive ethyl levulinate (EL) from biomass-derived 5-hydroxymethylfurfural (HMF). The employed biochar was directly produced from vineyard pruning wastes by a simple hydrothermal treatment using water in subcritical conditions followed by 3 different one-step sulfonation processes. The effects of sulfonating agent, reaction temperature, reaction time and alcohol solvent were examined. Full HMF conversion together with outstanding EL yields (over 84%) were achieved at 130 °C and after 6 h over the biochar functionalized with the organosilane 2-(4-chlorosulphonylphenyl)ethyltrimetoxysilane (BioC-S3). Catalyst characterization suggested that the high acid strength (0.983 mmol H+·g−1) derived from the anchoring of arylsulfonic groups were responsible for the promotion of acid-driven etherification and ethanolysis steps. The BioC-S3 catalyst can be recycled without a significant loss of catalytic activity, indicating the stability of – SO3H organosilane group structure in the porous biochar. The obtained results offer a competitive alternative for the production of fuel additives, such as alkyl levulinates, using low-cost and easy-to-prepare biochar-based catalysts, all from lignocellulose resources, as an example to support a future exploitation of a potential biorefinery.

ACS Style

Andreia F. Peixoto; Ruben Ramos; Manuela M. Moreira; O. Salomé G.P. Soares; Lucilia S. Ribeiro; Manuel F.R. Pereira; Cristina Delerue-Matos; Cristina Freire. Production of ethyl levulinate fuel bioadditive from 5-hydroxymethylfurfural over sulfonic acid functionalized biochar catalysts. Fuel 2021, 303, 121227 .

AMA Style

Andreia F. Peixoto, Ruben Ramos, Manuela M. Moreira, O. Salomé G.P. Soares, Lucilia S. Ribeiro, Manuel F.R. Pereira, Cristina Delerue-Matos, Cristina Freire. Production of ethyl levulinate fuel bioadditive from 5-hydroxymethylfurfural over sulfonic acid functionalized biochar catalysts. Fuel. 2021; 303 ():121227.

Chicago/Turabian Style

Andreia F. Peixoto; Ruben Ramos; Manuela M. Moreira; O. Salomé G.P. Soares; Lucilia S. Ribeiro; Manuel F.R. Pereira; Cristina Delerue-Matos; Cristina Freire. 2021. "Production of ethyl levulinate fuel bioadditive from 5-hydroxymethylfurfural over sulfonic acid functionalized biochar catalysts." Fuel 303, no. : 121227.

Journal article
Published: 09 June 2021 in Science of The Total Environment
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Every year, after grape harvesting, high quantities of vine-canes are generated. Due to the high amount of bioactive compounds present in this woody material, several studies reported their potential to be used in different sustainable applications. However, before employing vine-canes in this kind of products, their safety needs to be assessed. A robust method for identification and quantification of 30 environmental contaminants (12 organochloride pesticides (OCPs), 6 organophosphorus pesticides (OPPs), 5 polychlorinated biphenyls (PCBs) and 7 brominated flame retardants (BFRs)) in vine-canes was developed. For that, the extraction and clean-up procedures were optimized, namely the vine-canes size, the QuEChERS (quick, easy, cheap, effective, rugged and safe) composition and the amount of carbon used in the dispersive-solid phase extraction (d-SPE). Suitable analytical parameters were obtained: linearity (r2) >0.99 for all the studied compounds and for the solvent and matrix-matched standards; relative standard deviation (RSD) below 14%; and mean recoveries for two spiking levels (10 and 20 μg/kg) between 75 and 103%, excepting for the PCBs that ranged between 59 and 105%. The limit of detection (LOD) and quantification (LOQ) ranged between 0.38 and 1.09 and 1.26 to 3.64 μg/kg, respectively. Regarding the analysis of 19 vine-cane samples, corresponding to four different varieties (Touriga Nacional, Tinta Roriz, Alvarinho, and Loureiro) collected in four different years in the North of Portugal, five contaminants (aldrin, 2,2-bis(4-chlorophenyl)-1,1-dichloroethylene (p,p′-DDE), α-hexachlorocyclohexane (α-HCH), 2,4,4′-trichlorobiphenyl (PCB28), and 2,2′,4,5,5′-pentachlorobiphenyl (PCB101)) were detected. However, only α-HCH (5.85 ± 0.32 to 5.99 ± 0.25 μg/kg) and aldrin (2.44 ± 0.15 μg/kg) were quantified above the LOQ. The screening of environmental contaminants in vine-canes is essential to waste valorization, especially if the goal is to apply them in products for human consumption.

ACS Style

Olena Dorosh; Virgínia Cruz Fernandes; Manuela M. Moreira; Cristina Delerue-Matos. Occurrence of pesticides and environmental contaminants in vineyards: Case study of Portuguese grapevine canes. Science of The Total Environment 2021, 791, 148395 .

AMA Style

Olena Dorosh, Virgínia Cruz Fernandes, Manuela M. Moreira, Cristina Delerue-Matos. Occurrence of pesticides and environmental contaminants in vineyards: Case study of Portuguese grapevine canes. Science of The Total Environment. 2021; 791 ():148395.

Chicago/Turabian Style

Olena Dorosh; Virgínia Cruz Fernandes; Manuela M. Moreira; Cristina Delerue-Matos. 2021. "Occurrence of pesticides and environmental contaminants in vineyards: Case study of Portuguese grapevine canes." Science of The Total Environment 791, no. : 148395.

Journal article
Published: 21 May 2021 in Applied Sciences
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Salicornia ramosissima J.Woods is an edible halophyte, widely distributed in the Portuguese salt marsh that has been under valorized. The aim of this study is to expand the knowledge regarding S. ramosissima bioactive composition and safety, highlighting its potential use as nutraceutical ingredient. Therefore, extracts obtained by conventional (CE) and microwave-assisted extraction (MAE) were characterized regarding phenolic profile, antioxidant activity, radical scavenging capacity and intestinal cell effects. Moreover, organic pesticides were screened to guarantee the consumers safety. The highest phenolic and flavonoid contents were observed for the CE, as well as the scavenging capacity of O2•− (IC50 = 979.36 µg/mL) and HOCl (IC50 = 90.28 µg/mL). In contrast, the best antioxidant and antiradical activities were achieved by MAE (65.56 µmol FSE/g dw and 17.74 µg AAE/g dw for FRAP and ABTS assays, respectively). The phenolic composition was similar for both extracts, being characterized by the presence of phenolic acids, flavonols, flavanols, flavones and flavanones. The predominant compound for both extracts was myricetin. None of the extracts were cytotoxic in intestinal cell lines. Vestigial levels of β-endosulfan and p,p’-DDE were identified in MAE. These results support that S. ramosissima could be a source of bioactive compounds for nutraceutic industry.

ACS Style

Ana Silva; João Lago; Diana Pinto; Manuela Moreira; Clara Grosso; Virgínia Cruz Fernandes; Cristina Delerue-Matos; Francisca Rodrigues. Salicornia ramosissima Bioactive Composition and Safety: Eco-Friendly Extractions Approach (Microwave-Assisted Extraction vs. Conventional Maceration). Applied Sciences 2021, 11, 4744 .

AMA Style

Ana Silva, João Lago, Diana Pinto, Manuela Moreira, Clara Grosso, Virgínia Cruz Fernandes, Cristina Delerue-Matos, Francisca Rodrigues. Salicornia ramosissima Bioactive Composition and Safety: Eco-Friendly Extractions Approach (Microwave-Assisted Extraction vs. Conventional Maceration). Applied Sciences. 2021; 11 (11):4744.

Chicago/Turabian Style

Ana Silva; João Lago; Diana Pinto; Manuela Moreira; Clara Grosso; Virgínia Cruz Fernandes; Cristina Delerue-Matos; Francisca Rodrigues. 2021. "Salicornia ramosissima Bioactive Composition and Safety: Eco-Friendly Extractions Approach (Microwave-Assisted Extraction vs. Conventional Maceration)." Applied Sciences 11, no. 11: 4744.

Journal article
Published: 09 March 2021 in Journal of Electroanalytical Chemistry
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This study proposed an integrated valorisation system, by combining adsorption and electro-Fenton processes for fast and effective micropollutant remediation of a complex pharmaceutical mixture. The pharmaceuticals venlafaxine, fluoxetine and trazodone, commonly detected in the environment (river water and sediment), were selected in this study as target pollutants. Initially, the electro-Fenton degradation process of the ternary mixture was optimised. For this, a Box-Behnken experimental design was used and the degradation of each pollutant, as a response function, was evaluated using three key operational process parameters (iron concentration, current intensity and solution pH). The pharmaceutical mixture was removed by total adsorption onto the biochar, the regeneration of which was then carried out under the optimal electro-Fenton conditions (0.24 mA, 0.33 mM Fe2+ and pH 3.2). In addition, different options in relation to the presence of iron were considered: i) iron dissolved in aqueous solution; ii) iron supported on the biochar; iii) no addition of iron (“self-cleaning”). The results confirmed that the natural content of iron in the biochar was enough to catalyse the electro-Fenton regeneration. The adsorption-electro-Fenton regeneration process was repeated over several cycles with no reduction in the efficiency of either process. Finally, this combination (adsorption and electro-Fenton process) was tested using an aqueous matrix from a wastewater treatment plant.

ACS Style

Antón Puga; Manuela M. Moreira; Sónia A. Figueiredo; Cristina Delerue-Matos; Marta Pazos; Emilio Rosales; M. Ángeles Sanromán. Electro-Fenton degradation of a ternary pharmaceutical mixture and its application in the regeneration of spent biochar. Journal of Electroanalytical Chemistry 2021, 886, 115135 .

AMA Style

Antón Puga, Manuela M. Moreira, Sónia A. Figueiredo, Cristina Delerue-Matos, Marta Pazos, Emilio Rosales, M. Ángeles Sanromán. Electro-Fenton degradation of a ternary pharmaceutical mixture and its application in the regeneration of spent biochar. Journal of Electroanalytical Chemistry. 2021; 886 ():115135.

Chicago/Turabian Style

Antón Puga; Manuela M. Moreira; Sónia A. Figueiredo; Cristina Delerue-Matos; Marta Pazos; Emilio Rosales; M. Ángeles Sanromán. 2021. "Electro-Fenton degradation of a ternary pharmaceutical mixture and its application in the regeneration of spent biochar." Journal of Electroanalytical Chemistry 886, no. : 115135.

Book chapter
Published: 25 September 2020 in Lipids and Edible Oils
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Industrial food production generally leads to the generation of several “lateral” products, apart from the main target product, which are commonly classified as wastes and discarded, or redirected to low-value applications such as feed. However, these “lateral” products can be regarded as alternative rich sources of high-valuable compounds. This chapter provides an overview of the main bio-resources that can be used to recover edible added-value lipids, with emphasis on food by-products from fish, meat, and plant processing. Each source is analyzed in terms of the typical by-products generated, their geographical relevance, composition of representative by-products, recovery technologies, potential problems, and applications. Although the sustainable and environmentally friendly processing of such by-products is still demanding in terms of financial costs, their distinctive properties might enable new developments in their value-added application, leading to a significant reduction in pollution, as well as generating an extra income for industries, contributing toward their economic stability and competitiveness.

ACS Style

Ana P. Carvalho; Manuela M. Moreira; Cristina Delerue-Matos; Ana Maria Gomes; Ana Freitas; Clara Grosso. Valorization of lipid by-products. Lipids and Edible Oils 2020, 133 -174.

AMA Style

Ana P. Carvalho, Manuela M. Moreira, Cristina Delerue-Matos, Ana Maria Gomes, Ana Freitas, Clara Grosso. Valorization of lipid by-products. Lipids and Edible Oils. 2020; ():133-174.

Chicago/Turabian Style

Ana P. Carvalho; Manuela M. Moreira; Cristina Delerue-Matos; Ana Maria Gomes; Ana Freitas; Clara Grosso. 2020. "Valorization of lipid by-products." Lipids and Edible Oils , no. : 133-174.

Journal article
Published: 03 July 2020 in Foods
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This work focused on evaluating the possibility of using vineyard pruning wastes from two Portuguese Vitis vinifera varieties; Touriga Nacional (TN) and Tinta Roriz (TR), as new potential ingredients for the nutraceutical industry. An environmentally friendly extraction technique; namely subcritical-water extraction (SWE), was employed. The overall results indicate that phenolic acids were the major class of compounds quantified; being gallic acid the principal one. The highest value for total phenolic content (TPC) was obtained for the TR extract at 250 °C (181 ± 12 mg GAE/g dw). In terms of antioxidant activity; the DPPH values for the extracts obtained at 250 °C were approximately 4-fold higher than the ones obtained at 125 °C; with TR extract presenting the highest value (203 ± 22 mg TE/g dw). Thus, the TR extract obtained through SWE at 250 °C was selected to evaluate the scavenging activity and the in vitro effects on cells due to the best results achieved in the previous assays. This extract presented the ability to scavenge reactive oxygen species (O2●-, HOCl and ROO●). No adverse effects were observed in HFF-1 viability after exposure to extract concentrations below 100 μg/mL. This work demonstrated that vine-canes extracts could be a potential ingredient to nutraceutical industry

ACS Style

Olena Dorosh; Manuela M. Moreira; Diana Pinto; Andreia F. Peixoto; Cristina Freire; Paulo Costa; Francisca Rodrigues; Cristina Delerue-Matos. Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts. Foods 2020, 9, 872 .

AMA Style

Olena Dorosh, Manuela M. Moreira, Diana Pinto, Andreia F. Peixoto, Cristina Freire, Paulo Costa, Francisca Rodrigues, Cristina Delerue-Matos. Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts. Foods. 2020; 9 (7):872.

Chicago/Turabian Style

Olena Dorosh; Manuela M. Moreira; Diana Pinto; Andreia F. Peixoto; Cristina Freire; Paulo Costa; Francisca Rodrigues; Cristina Delerue-Matos. 2020. "Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts." Foods 9, no. 7: 872.

Journal article
Published: 28 June 2020 in Molecules
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The majority of works about vine-canes are focused on the evaluation of their chemical composition and antioxidant potential. To the best of our knowledge, the possible applications of produced extracts in cosmetic formulations have never been explored. The aim of the present study was to evaluate the antioxidant properties of vine-canes subcritical water extracts for use as active ingredients in the cosmetic industry. For that, the phenolic content and antioxidant activity of six vine-cane varieties, namely Alvarinho and Loureiro from the Minho region and Touriga Nacional and Tinta Roriz (TR) from both the Douro and Dão regions, were evaluated through spectrophotometric and chromatographic methods. All extracts presented similar antioxidant activity and the highest phenolic content was reported for TR variety from the Douro region (33.7 ± 1.9 mg GAE/g dw). The capacity of vine-cane extracts to capture reactive oxygen species superoxide (O2−) was also studied, with the highest IC50 value being obtained for Loureiro variety (56.68 ± 2.60 µg/mL). Furthermore, no adverse effects on HaCaT and HFF-1 dermal cell lines in concentrations below 100 and 1000 µg/mL, respectively, were determined. Finally, Loureiro vine-cane extract was incorporated into a topical formulation, and physical and microbiological properties were within expected values, demonstrating that vine-canes extracts can be successfully incorporated in cosmetic products.

ACS Style

Manuela M. Moreira; Francisca Rodrigues; Olena Dorosh; Diana Pinto; Paulo C. Costa; Jaroslava Švarc-Gajić; Cristina Delerue-Matos. Vine-Canes as a Source of Value-Added Compounds for Cosmetic Formulations. Molecules 2020, 25, 2969 .

AMA Style

Manuela M. Moreira, Francisca Rodrigues, Olena Dorosh, Diana Pinto, Paulo C. Costa, Jaroslava Švarc-Gajić, Cristina Delerue-Matos. Vine-Canes as a Source of Value-Added Compounds for Cosmetic Formulations. Molecules. 2020; 25 (13):2969.

Chicago/Turabian Style

Manuela M. Moreira; Francisca Rodrigues; Olena Dorosh; Diana Pinto; Paulo C. Costa; Jaroslava Švarc-Gajić; Cristina Delerue-Matos. 2020. "Vine-Canes as a Source of Value-Added Compounds for Cosmetic Formulations." Molecules 25, no. 13: 2969.

Journal article
Published: 10 April 2020 in Molecules
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Wine production generates large amounts of vine-canes, a devalued by-product that could be used for the recovery of bioactive compounds. In this work, two vine-canes varieties, namely Touriga Nacional (TN) and Tinta Roriz (TR), were submitted to different ultrasound-assisted extraction (UAE) conditions. The highest phenolic and flavonoid content was observed for TR extract obtained at lab-scale without an ice bath and pilot-scale after 60 min of extraction (32.6 ± 2.1 and 26.0 ± 1.5 mg gallic acid equivalent/g dry weight (dw) and 9.5 ± 0.6 and 8.3 ± 0.8 mg epicatechin equivalents/g dw, respectively). Further, all extracts demonstrated a high antioxidant activity to scavenge DPPH free radicals with the best value reached by TR at the lab-scale without an ice bath after 30 min and pilot-scale extraction after 60 min (34.2 ± 2.4 and 33.4 ± 2.1 mg trolox equivalents/g dw, respectively). Extracts phenolic composition were also evaluated by HPLC, demonstrating that resveratrol, myricetin and catechin were the main compounds. According to our knowledge, this is the first time that a pilot scale of UAE of phenolic compounds from vine-canes was performed. This paper represents an important step to the use of UAE as an industrial process to recover bioactive compounds.

ACS Style

Olena Dorosh; Manuela M. Moreira; Francisca Rodrigues; Andreia F. Peixoto; Cristina Freire; Simone Morais; Cristina Delerue-Matos. Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale. Molecules 2020, 25, 1739 .

AMA Style

Olena Dorosh, Manuela M. Moreira, Francisca Rodrigues, Andreia F. Peixoto, Cristina Freire, Simone Morais, Cristina Delerue-Matos. Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale. Molecules. 2020; 25 (7):1739.

Chicago/Turabian Style

Olena Dorosh; Manuela M. Moreira; Francisca Rodrigues; Andreia F. Peixoto; Cristina Freire; Simone Morais; Cristina Delerue-Matos. 2020. "Vine-Canes Valorisation: Ultrasound-Assisted Extraction from Lab to Pilot Scale." Molecules 25, no. 7: 1739.

Original research article
Published: 29 January 2020 in Journal of Apicultural Research
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The aim of this study was to evaluate the influence of lyophilization and drying in stove on phenolic compounds content and the biological activity of Apis mellifera and Trigona spinipes pollens produced in Brazil. In general, the bee pollen produced by T. spinipes presented highest antioxidant activity in dried and fresh samples assessed either by test of plasma ferric reduction capacity (FRAP) and free radical scavenging assay (DPPH) methods. For A. mellifera bee pollen the antioxidant activity was higher on the fresh samples. Nevertheless, β-carotene bleaching assay (BCB) and linoleic acid content were higher in T. spinipes samples, mainly in the fresh ones. Higher antioxidant activity was owing to higher content in phenolic compounds. Lyophilization method was the best for phenolic compounds’ conservation for both species. The bee pollen of both species has a high amount of flavonoids: kaempferol-3-O-glucoside was the most abundant in A. mellifera while for T. spinipes the most prevalent was resorcylic acid + epicatechin. All extracts presented antibacterial activity against Saphylococcus aureus (ATCC 43300)™, (ESA 83138150), (ESA 32), Pseudomonas aeruginosa (ATCC 15442)™, Pseudomonas aeruginosa (MRC.4) and (MRC.10). The methods used for storage influenced the biological properties of bee pollen from both species. Regarding the content of phenolic compounds, differences were observed amongst the pollen types: for A. mellifera these were best preserved with lyophilization, while for T. spinipes the three storage methods were equivalent.

ACS Style

Marivalda F. Santa Bárbara; Manuela M. Moreira; Cerilene S. Machado; Emerson D. Chambó; Ananias Pascoal; Carlos Alfredo L. De Carvalho; Geni Da Silva Sodré; Cristina Delerue-Matos; Leticia M. Estevinho. Storage methods, phenolic composition, and bioactive properties of Apis mellifera and Trigona spinipes pollen. Journal of Apicultural Research 2020, 1 -9.

AMA Style

Marivalda F. Santa Bárbara, Manuela M. Moreira, Cerilene S. Machado, Emerson D. Chambó, Ananias Pascoal, Carlos Alfredo L. De Carvalho, Geni Da Silva Sodré, Cristina Delerue-Matos, Leticia M. Estevinho. Storage methods, phenolic composition, and bioactive properties of Apis mellifera and Trigona spinipes pollen. Journal of Apicultural Research. 2020; ():1-9.

Chicago/Turabian Style

Marivalda F. Santa Bárbara; Manuela M. Moreira; Cerilene S. Machado; Emerson D. Chambó; Ananias Pascoal; Carlos Alfredo L. De Carvalho; Geni Da Silva Sodré; Cristina Delerue-Matos; Leticia M. Estevinho. 2020. "Storage methods, phenolic composition, and bioactive properties of Apis mellifera and Trigona spinipes pollen." Journal of Apicultural Research , no. : 1-9.

Conference paper
Published: 01 November 2019 in ICERI2019 Proceedings
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ACS Style

Olga Freitas; Maria João Ramalhosa; Cristina Soares; Abel Duarte; M. Fátima Barroso; Rita Alves; A.P. Carvalho; João Grosso; Lúcia Santos; Manuela M. Moreira; Cristina Delerure-Matos. ARTISTS CONNECTION BETWEEN RECYCLING AND ENVIRONMENTAL EDUCATION. ICERI2019 Proceedings 2019, 10636 -10643.

AMA Style

Olga Freitas, Maria João Ramalhosa, Cristina Soares, Abel Duarte, M. Fátima Barroso, Rita Alves, A.P. Carvalho, João Grosso, Lúcia Santos, Manuela M. Moreira, Cristina Delerure-Matos. ARTISTS CONNECTION BETWEEN RECYCLING AND ENVIRONMENTAL EDUCATION. ICERI2019 Proceedings. 2019; ():10636-10643.

Chicago/Turabian Style

Olga Freitas; Maria João Ramalhosa; Cristina Soares; Abel Duarte; M. Fátima Barroso; Rita Alves; A.P. Carvalho; João Grosso; Lúcia Santos; Manuela M. Moreira; Cristina Delerure-Matos. 2019. "ARTISTS CONNECTION BETWEEN RECYCLING AND ENVIRONMENTAL EDUCATION." ICERI2019 Proceedings , no. : 10636-10643.

Journal article
Published: 01 November 2019 in Bioresource Technology
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Twelve biochars from forest and agri-food wastes (pruning of Quercus ilex, Eucalyptus grandis, Pinus pinaster, Quercus suber, Malus pumila, Prunus spinosa, Cydonia oblonga, Eriobotrya japonica, Juglans regia, Actinidia deliciosa, Citrus sinensis and Vitis vinifera) were investigated as potential low-cost and renewable adsorbents for removal of a commonly used pharmaceutical, fluoxetine. Preliminary adsorption experiments allowed to select the most promising adsorbents, Quercus ilex, Cydonia oblonga, Eucalyptus, Juglans regia and Vitis vinifera pruning material. They were characterized by proximate, elemental and mineral analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, determination of specific surface area and pH at the point of zero charge. Batch and equilibrium studies were performed, and the influence of pH was evaluated. The equilibrium was reached in less than 15 min in all systems. The maximum adsorption capacity obtained was 6.41 mg/g for the Eucalyptus biochar, which also demonstrated a good behavior in continuous mode (packed column).

ACS Style

Maria João Fernandes; Manuela M. Moreira; Paula Paíga; Diogo Dias; Maria Bernardo; Maria Manuela Martins de Carvalho; Nuno Lapa; Isabel Fonseca; Simone Morais; Sónia Figueiredo; Cristina Delerue-Matos. Evaluation of the adsorption potential of biochars prepared from forest and agri-food wastes for the removal of fluoxetine. Bioresource Technology 2019, 292, 121973 .

AMA Style

Maria João Fernandes, Manuela M. Moreira, Paula Paíga, Diogo Dias, Maria Bernardo, Maria Manuela Martins de Carvalho, Nuno Lapa, Isabel Fonseca, Simone Morais, Sónia Figueiredo, Cristina Delerue-Matos. Evaluation of the adsorption potential of biochars prepared from forest and agri-food wastes for the removal of fluoxetine. Bioresource Technology. 2019; 292 ():121973.

Chicago/Turabian Style

Maria João Fernandes; Manuela M. Moreira; Paula Paíga; Diogo Dias; Maria Bernardo; Maria Manuela Martins de Carvalho; Nuno Lapa; Isabel Fonseca; Simone Morais; Sónia Figueiredo; Cristina Delerue-Matos. 2019. "Evaluation of the adsorption potential of biochars prepared from forest and agri-food wastes for the removal of fluoxetine." Bioresource Technology 292, no. : 121973.

Journal article
Published: 01 November 2019 in Acta Scientiarum. Biological Sciences
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For the first time, the anti-hemolytic activity and the enzyme inhibitory activities of Dalbergia ecastaphyllum leaves extracts were tested against α-amylase, α-glucosidase, lipase, acetylcholinesterase, butyrylcholinesterase, tyrosinase and hyaluronidase. The phenolic profile of the obtained extracts was also investigated by high-performance liquid chromatography with photodiode array detection (HPLC-PAD). The extracts showed inhibitory activity against all enzymes evaluated, with the highest inhibitory activity reported for the enzyme hyaluronidase (28.28 ± 2.43 to 72.19 ± 1.40 μg mL-1). The obtained extracts also demonstrate anti-hemolytic activity (52.22 ± 1.62 to 71.17 ± 1.82%). Among the phenolic compounds identified, protocatechuic, vanillic and β-resorcylic acids were the most abundant (1.13 ± 0.06 to 2.53 ± 0.06, 0.90 ± 0.06 to 2.19 ± 0.06 and 1.03 ± 1.62 to 22.11 ± 1.62 mg L-1, respectively). In the statistical analysis, a significant correlation was found between the flavonoids content and all enzymes inhibitory activities. The present study showed that D. ecastaphyllum leaves extracts may have the potential to be used in the therapeutic treatment of several diseases such as Alzheimer, Parkinson, type 2 diabetes mellitus, hyperglycemia, and pigmentation, as well as those associated with oxidative stress.

ACS Style

Daniel Vieira De Morais; Manuela Maria Moreira; Fabiane De Lima Silva; Maria Angélica Pereira De Carvalho Costa; Cristina Delerue-Mato; Carlos Alfredo Lopes De Carvalho; Maria Leticia Miranda Estevinho. Dalbergia ecastaphyllum leaf extracts: in vitro inhibitory potential against enzymes related to metabolic syndrome, inflammation and neurodegenerative diseases. Acta Scientiarum. Biological Sciences 2019, 41, e46622 -e46622.

AMA Style

Daniel Vieira De Morais, Manuela Maria Moreira, Fabiane De Lima Silva, Maria Angélica Pereira De Carvalho Costa, Cristina Delerue-Mato, Carlos Alfredo Lopes De Carvalho, Maria Leticia Miranda Estevinho. Dalbergia ecastaphyllum leaf extracts: in vitro inhibitory potential against enzymes related to metabolic syndrome, inflammation and neurodegenerative diseases. Acta Scientiarum. Biological Sciences. 2019; 41 ():e46622-e46622.

Chicago/Turabian Style

Daniel Vieira De Morais; Manuela Maria Moreira; Fabiane De Lima Silva; Maria Angélica Pereira De Carvalho Costa; Cristina Delerue-Mato; Carlos Alfredo Lopes De Carvalho; Maria Leticia Miranda Estevinho. 2019. "Dalbergia ecastaphyllum leaf extracts: in vitro inhibitory potential against enzymes related to metabolic syndrome, inflammation and neurodegenerative diseases." Acta Scientiarum. Biological Sciences 41, no. : e46622-e46622.

Original paper
Published: 28 September 2019 in European Food Research and Technology
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This study describes the possibilities of valorising a waste stream that originates from apple wood by mapping the reducing capacity and phenolic profile from extracts derived from apple tree (Malus domestica). This study evaluated the efficiency of warm solvent extraction (WSE) and ultrasound-assisted extraction (UAE) techniques for extracting antioxidant phenolic compounds from the bark and core wood of an apple tree cultivated in the north-eastern part of Belgium. Furthermore, the influence of the pre-treatment technique, namely, fresh, oven-dried, and freeze-dried samples, respectively, on the yield of polyphenols was studied. Fresh bark extract obtained by UAE—the most efficient extraction technique—employing acetone 60% v/v contains the highest levels of phenolic compounds as well as the highest antioxidant activity. High-performance liquid chromatographic analysis shows that phloridzin is the major compound of the identified polyphenol markers present in bark and core wood extracts. Based on the obtained results, it may be possible to produce a polyphenolic extract from apple wood at an industrial scale without extensive costs or altering the antioxidant properties. This study reveals the potential of apple tree wood residues valorisation through the recovery of phenolic compounds for food, pharmaceutical, and cosmetic applications.

ACS Style

Hannes Withouck; Annick Boeykens; Machteld Vanden Broucke; Manuela M. Moreira; Cristina Delerue-Matos; Luc De Cooman. Evaluation of the impact of pre-treatment and extraction conditions on the polyphenolic profile and antioxidant activity of Belgium apple wood. European Food Research and Technology 2019, 245, 2565 -2578.

AMA Style

Hannes Withouck, Annick Boeykens, Machteld Vanden Broucke, Manuela M. Moreira, Cristina Delerue-Matos, Luc De Cooman. Evaluation of the impact of pre-treatment and extraction conditions on the polyphenolic profile and antioxidant activity of Belgium apple wood. European Food Research and Technology. 2019; 245 (11):2565-2578.

Chicago/Turabian Style

Hannes Withouck; Annick Boeykens; Machteld Vanden Broucke; Manuela M. Moreira; Cristina Delerue-Matos; Luc De Cooman. 2019. "Evaluation of the impact of pre-treatment and extraction conditions on the polyphenolic profile and antioxidant activity of Belgium apple wood." European Food Research and Technology 245, no. 11: 2565-2578.

Research article
Published: 30 November 2018 in PLOS ONE
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Dalbergia ecastaphyllum is a native Brazil plant with importance for beekeeping, and widely used in folk medicine. For the first time, the extracts of this plant were assessed for the presence of hydrophilic and lipophilic antioxidants, as well as inhibition of tyrosinase, free radicals scavenging and sunscreen protection. The antioxidant activity was evaluated by free radical scavenging (DPPH) and β-carotene bleaching assay. The tyrosinase inhibitory activity was evaluated and calculated the EC50. The photoprotective activity was measured using different concentrations of D. ecastaphyllum extracts. The Sun Protection Factor (SPF) of the samples was higher than 6, and the sample from Ilhéus showed the most pronounced photoprotective effect. Sample from Canavieiras presented the highest antioxidant activity by free radical scavenging DPPH and β-carotene bleaching method, with 92.41% and 48.34%, respectively. All samples inhibited the tyrosinase, especially the sample from Prado that was most effective (124.62 μg.mL-1). Significant negative correlation was found between flavonoid contents and inhibition of tyrosinase. The overall results provide relevant information about the Dalbergia ecastaphyllum species, indicating as potential material to cosmetic and pharmaceutical industry.

ACS Style

Daniel Vieira De Morais; Maria Angélica Pereira De Carvalho Costa; Marivalda Figueredo Santa Bárbara; Fabiane De Lima Silva; Manuela M. Moreira; Cristina Delerue-Mato; Luís Avelino Guimarães Dias; Maria Leticia Miranda Fernandes Estevinho; Carlos Alfredo Lopes De Carvalho. Antioxidant, photoprotective and inhibitory activity of tyrosinase in extracts of Dalbergia ecastaphyllum. PLOS ONE 2018, 13, e0207510 .

AMA Style

Daniel Vieira De Morais, Maria Angélica Pereira De Carvalho Costa, Marivalda Figueredo Santa Bárbara, Fabiane De Lima Silva, Manuela M. Moreira, Cristina Delerue-Mato, Luís Avelino Guimarães Dias, Maria Leticia Miranda Fernandes Estevinho, Carlos Alfredo Lopes De Carvalho. Antioxidant, photoprotective and inhibitory activity of tyrosinase in extracts of Dalbergia ecastaphyllum. PLOS ONE. 2018; 13 (11):e0207510.

Chicago/Turabian Style

Daniel Vieira De Morais; Maria Angélica Pereira De Carvalho Costa; Marivalda Figueredo Santa Bárbara; Fabiane De Lima Silva; Manuela M. Moreira; Cristina Delerue-Mato; Luís Avelino Guimarães Dias; Maria Leticia Miranda Fernandes Estevinho; Carlos Alfredo Lopes De Carvalho. 2018. "Antioxidant, photoprotective and inhibitory activity of tyrosinase in extracts of Dalbergia ecastaphyllum." PLOS ONE 13, no. 11: e0207510.

Journal article
Published: 01 September 2018 in Science of The Total Environment
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Since annually a high amount of wastes is produced in vine pruning, the aim of this study was to evaluate the potential of vine shoots from two Portuguese grape varieties (Touriga Nacional - TN and Tinta Roriz - TR) to be used as a natural source of phenolic compounds. To reach this goal, three techniques were explored, namely microwave-assisted extraction (MAE), subcritical water extraction (SWE) and conventional extraction (CE). The phenolic composition of the extracts, antioxidant and biological activities were evaluated by spectrophotometry and chromatography. MAE and SWE produced the highest concentrated extracts. TR vine shoot variety had the highest antioxidant activity and total phenolic (32.1±0.9mggallicacidequivalents/g dry sample), as well as flavonoid content (18.7±1.2mgepicatechinequivalents/g dry sample). For the first time, the biological activity of the vine shoot extracts was tested. Results demonstrated that all of them had antimicrobial potential against different bacteria and yeasts, and the ability of inhibiting α-amylase and acetylcholinesterase enzymes, with MAE TR extracts being the most efficient. HPLC analysis enabled the identification of different phenolic compounds, with gallic acid, catechin, myricetin and kaempferol-3-O-rutinoside being the main contributors to the phenolic composition. Portuguese vine shoot wastes could serve as easily accessible source of natural antioxidants for the food or pharmaceutical industries.

ACS Style

Manuela M. Moreira; M. Fátima Barroso; João Vasconcellos Porto; Maria João Ramalhosa; Jaroslava Švarc-Gajić; Maria Leticia Miranda Fernandes Estevinho; Simone Morais; Cristina Delerue-Matos. Potential of Portuguese vine shoot wastes as natural resources of bioactive compounds. Science of The Total Environment 2018, 634, 831 -842.

AMA Style

Manuela M. Moreira, M. Fátima Barroso, João Vasconcellos Porto, Maria João Ramalhosa, Jaroslava Švarc-Gajić, Maria Leticia Miranda Fernandes Estevinho, Simone Morais, Cristina Delerue-Matos. Potential of Portuguese vine shoot wastes as natural resources of bioactive compounds. Science of The Total Environment. 2018; 634 ():831-842.

Chicago/Turabian Style

Manuela M. Moreira; M. Fátima Barroso; João Vasconcellos Porto; Maria João Ramalhosa; Jaroslava Švarc-Gajić; Maria Leticia Miranda Fernandes Estevinho; Simone Morais; Cristina Delerue-Matos. 2018. "Potential of Portuguese vine shoot wastes as natural resources of bioactive compounds." Science of The Total Environment 634, no. : 831-842.

Journal article
Published: 08 August 2018 in Food Bioscience
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Fifty six Brazilian bee pollen samples were characterised, and their botanical and geographical origins were studied. The samples were also classified based on physicochemical and biological properties. The characterisation was done using Soxhlet extraction and micro-Kjeldahl methods, ashing at 550 °C, transmittance, microscopy, spectrophotometry, inductively coupled plasma optical emission spectrometry and high-performance liquid chromatography. As expected, the values of proteins (7.9–32.2 g/100 g), lipids (3.2–13.5 g/100 g), ash (1.9–3.6 g/100 g), carbohydrates (54.9–82.8 g/100 g), K (3.4–9.8 g/Kg), Ca (0.9–4.1 g/Kg), Mg (0.6–2.4 g/Kg), Fe (46–1180 mg/Kg), Na (20–374 mg/Kg), Mn (25–215 mg/Kg), Zn (30–101 mg/Kg), Cu (7.4–19.7 mg/Kg), total phenolics (6.5–29.2 mg GAE/g) and flavonoids (0.3–17.5 mg QE/g) as well as the phenolic profiles varied among the samples. In general, the products had high antioxidant capacity (ORAC: 133–563 μmol TE/g; DPPH: 9.4–155 μmol TE/g) and the antimicrobial capacity varied according to the sample and microorganism tested. The instrumental colour parameters could be used as indicators of some minerals. Based on multivariate approaches, bee pollen from Southern Brazil seemed to have a higher biological potential, whereas products from the Northeast region had higher calcium and magnesium levels. Similarities were identified in bee pollen containing C. nucifera or Brassica, and monofloral bee pollen seemed to have higher mineral content than heterofloral bee pollen.

ACS Style

Adriane Alexandre Machado De-Melo; Maria Leticia Miranda Fernandes Estevinho; Manuela M. Moreira; Cristina Delerue-Matos; Alex Da Silva De Freitas; Ortrud Monika Barth; Ligia Bicudo de Almeida-Muradian. A multivariate approach based on physicochemical parameters and biological potential for the botanical and geographical discrimination of Brazilian bee pollen. Food Bioscience 2018, 25, 91 -110.

AMA Style

Adriane Alexandre Machado De-Melo, Maria Leticia Miranda Fernandes Estevinho, Manuela M. Moreira, Cristina Delerue-Matos, Alex Da Silva De Freitas, Ortrud Monika Barth, Ligia Bicudo de Almeida-Muradian. A multivariate approach based on physicochemical parameters and biological potential for the botanical and geographical discrimination of Brazilian bee pollen. Food Bioscience. 2018; 25 ():91-110.

Chicago/Turabian Style

Adriane Alexandre Machado De-Melo; Maria Leticia Miranda Fernandes Estevinho; Manuela M. Moreira; Cristina Delerue-Matos; Alex Da Silva De Freitas; Ortrud Monika Barth; Ligia Bicudo de Almeida-Muradian. 2018. "A multivariate approach based on physicochemical parameters and biological potential for the botanical and geographical discrimination of Brazilian bee pollen." Food Bioscience 25, no. : 91-110.

Journal article
Published: 30 April 2018 in The Journal of Supercritical Fluids
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In the present work, antioxidant compounds from Teucrium montanum were extracted by subcritical water. The influence of extraction temperature and pressure on antioxidant activity of extracts has been investigated in terms of extraction yield (EY), total phenolic content (TPC), and DPPH-radical scavenging activity (DPPH-RSA) and ferric reducing antioxidant power (FRAP). Additionally, the compounds responsible for the antioxidant activity were identified and quantified by high performance liquid chromatography (HPLC). The highest EY (42.63%), TPC (174.61 ± 4.09 mg GAE/g DE) and antioxidant activity by DPPH-RSA (176.23 ± 8.76 mg TE/g DE) and FRAP (141.71 ± 5.21 mg AAE/g DE) were seen in extracts obtained at temperature of 160 °C and pressure of 10 bar. HPLC analysis revealed that naringin and gallic acid were the principle antioxidant compounds in subcritical extracts. According to the results, SWE has a great potential in exploitation of natural sources of bioactive compounds and production of pharmacologically-active fractions.

ACS Style

Nataša Nastić; Jaroslava Švarc-Gajić; Cristina Delerue-Matos; Simone Morais; M. Fátima Barroso; Manuela M. Moreira. Subcritical water extraction of antioxidants from mountain germander (Teucrium montanum L.). The Journal of Supercritical Fluids 2018, 138, 200 -206.

AMA Style

Nataša Nastić, Jaroslava Švarc-Gajić, Cristina Delerue-Matos, Simone Morais, M. Fátima Barroso, Manuela M. Moreira. Subcritical water extraction of antioxidants from mountain germander (Teucrium montanum L.). The Journal of Supercritical Fluids. 2018; 138 ():200-206.

Chicago/Turabian Style

Nataša Nastić; Jaroslava Švarc-Gajić; Cristina Delerue-Matos; Simone Morais; M. Fátima Barroso; Manuela M. Moreira. 2018. "Subcritical water extraction of antioxidants from mountain germander (Teucrium montanum L.)." The Journal of Supercritical Fluids 138, no. : 200-206.

Journal article
Published: 08 March 2018 in Journal of Food Biochemistry
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The objective of this study was to determine physicochemical and phenolic profiles as well the antioxidant and antimicrobial capacities of monofloral bee pollen samples from Brazil. Traditional methods were used. The phenolic profile was determined by high-performance liquid chromatography-mass spectrometry (HPLC-MS). The protein (10.6–33.9 g/100g), lipids (3.2–8.3 g/100g), ashes (2.6–3.8 g/100g), total phenolic (5.6–29.7 mg GAE/g), and total flavonoid (0.3–19.0 mg QE/g) values were variable, even between products with the same botanical origin. The minerals analyzed were found in amounts varying between 10 mg/kg and 9.1 g/kg. Each product presented specific color parameters. Myrcia bee pollen presented the greater antioxidant capacity, and Mimosa scabrella bee pollen from Santa Catarina state was the most efficient in inhibiting bacteria and yeasts. Among the compounds identified by HPLC-MS, flavonoid 3-O-glycosides predominated. The physicochemical and phenolic profiles of each sample were distinct, and there was no pattern between monofloral products of the same pollen type. This manuscript reports physicochemical parameters, the biological potential, and the phenolic profile from HPLC-MS of some unknown monofloral bee pollen produced in Brazil. In addition to the possibility of the identification of phenolic compounds using a reliable technique, the current study helps to clarify one of the main questions of apicultural product researchers: Would monofloral bee pollens of the same botanical origin have similar profiles? Besides this, these results can increase consumer interest in this product and thus have positive impacts on apiculture in Brazil.

ACS Style

Adriane Alexandre Machado De-Melo; Maria Leticia Miranda Fernandes Estevinho; Manuela M. Moreira; Cristina Delerue-Matos; Alex Da Silva De Freitas; Ortrud Monika Barth; Ligia Bicudo de Almeida-Muradian. Phenolic profile by HPLC-MS, biological potential, and nutritional value of a promising food: Monofloral bee pollen. Journal of Food Biochemistry 2018, 42, e12536 .

AMA Style

Adriane Alexandre Machado De-Melo, Maria Leticia Miranda Fernandes Estevinho, Manuela M. Moreira, Cristina Delerue-Matos, Alex Da Silva De Freitas, Ortrud Monika Barth, Ligia Bicudo de Almeida-Muradian. Phenolic profile by HPLC-MS, biological potential, and nutritional value of a promising food: Monofloral bee pollen. Journal of Food Biochemistry. 2018; 42 (5):e12536.

Chicago/Turabian Style

Adriane Alexandre Machado De-Melo; Maria Leticia Miranda Fernandes Estevinho; Manuela M. Moreira; Cristina Delerue-Matos; Alex Da Silva De Freitas; Ortrud Monika Barth; Ligia Bicudo de Almeida-Muradian. 2018. "Phenolic profile by HPLC-MS, biological potential, and nutritional value of a promising food: Monofloral bee pollen." Journal of Food Biochemistry 42, no. 5: e12536.

Journal article
Published: 01 January 2018 in Industrial Crops and Products
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Nataša Nastić; Jaroslava Švarc-Gajić; Cristina Delerue-Matos; M. Fátima Barroso; Cristina Soares; Manuela M. Moreira; Simone Morais; Pavle Mašković; Višnja Gaurina Srček; Igor Slivac; Kristina Radošević; Marija Radojković. Subcritical water extraction as an environmentally-friendly technique to recover bioactive compounds from traditional Serbian medicinal plants. Industrial Crops and Products 2018, 111, 579 -589.

AMA Style

Nataša Nastić, Jaroslava Švarc-Gajić, Cristina Delerue-Matos, M. Fátima Barroso, Cristina Soares, Manuela M. Moreira, Simone Morais, Pavle Mašković, Višnja Gaurina Srček, Igor Slivac, Kristina Radošević, Marija Radojković. Subcritical water extraction as an environmentally-friendly technique to recover bioactive compounds from traditional Serbian medicinal plants. Industrial Crops and Products. 2018; 111 ():579-589.

Chicago/Turabian Style

Nataša Nastić; Jaroslava Švarc-Gajić; Cristina Delerue-Matos; M. Fátima Barroso; Cristina Soares; Manuela M. Moreira; Simone Morais; Pavle Mašković; Višnja Gaurina Srček; Igor Slivac; Kristina Radošević; Marija Radojković. 2018. "Subcritical water extraction as an environmentally-friendly technique to recover bioactive compounds from traditional Serbian medicinal plants." Industrial Crops and Products 111, no. : 579-589.