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Biomolecules
Special Issues
Antioxidants in Food and Waste from the Agri-Food Industry
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Antioxidants in Food and Waste from the Agri-Food Industry

A special issue of Biomolecules (ISSN 2218-273X).

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 8342

Special Issue Editors

Dr. Dominico A. Guillén-Sánchez

E-Mail Website
Guest Editor
Analytical Chemistry Department, Faculty of Sciences, University of Cádiz. Campus Universitario de Puerto Real, 11510-Puerto Real, Cádiz, Spain
Interests: wine; spirits; polyphenols; antioxidants; ageing
Dr. M. Valme García-Moreno

E-Mail Website
Guest Editor
Analytical Chemistry Department, Faculty of Sciences, University of Cádiz. Campus Universitario de Puerto Real, 11510-Puerto Real, Cádiz, Spain
Interests: chromatographic techniques; food science; phenolic and furanic compounds; antioxidants activity; byproducts; spirits; brandy; wine; grape

Special Issue Information

Dear Colleagues,

The plant world is a source of antioxidant compounds potentially beneficial for human health. Compounds such as polyphenols, vitamins, tocopherols, etc., are present in vegetables. In the agri-food industry, many of these compounds are lost in waste during food processing, which represents a serious environmental problem. The characterization and recovery of these compounds in the remains of the agri-food industry has a dual objective:, to reduce the volume and environmental impact of these wastes on the one hand and, secondly, to recover, as far as possible, these antioxidant compounds for their later use in the agri-food or other industries.

The objective of this Special Issue is to publish research works related to the characterization of antioxidant compounds and other biomolecules present in foods and waste from the agri-food industry that are beneficial to health as well as on their recovery and subsequent uses in the agri-food industry itself or other industries such as cosmetic, pharmaceutical, etc.

Dr. Dominico Guillén-Sánchez
Dr. M. Valme García-Moreno
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Biomolecules is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Antioxidants
  • Foods
  • Antioxidant activity
  • Agri-food waste
  • Byproduct
  • Phytochemicals
  • Residues

Published Papers (2 papers)

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Research

16 pages, 3056 KiB  
Article
Preventive Effect of Epigallocatechin Gallate, the Main Component of Green Tea, on Acute Lung Injury Caused by Air Pollutants
by Ken-Ichiro Tanaka, Shunsuke Nakaguchi, Sachie Shiota, Yuka Nakada, Kaho Oyama, Okina Sakakibara, Mikako Shimoda, Akio Sugimoto, Masaki Ichitani, Takanobu Takihara, Hitoshi Kinugasa and Masahiro Kawahara
Biomolecules 2022, 12(9), 1196; https://doi.org/10.3390/biom12091196 - 29 Aug 2022
Cited by 3 | Viewed by 5150
Abstract
Reducing the health hazards caused by air pollution is a global challenge and is included in the Sustainable Development Goals. Air pollutants, such as PM2.5, induce respiratory and cardiovascular disorders by causing various inflammatory responses via oxidative stress. Catechins and polyphenols, [...] Read more.
Reducing the health hazards caused by air pollution is a global challenge and is included in the Sustainable Development Goals. Air pollutants, such as PM2.5, induce respiratory and cardiovascular disorders by causing various inflammatory responses via oxidative stress. Catechins and polyphenols, which are components of green tea, have various protective effects, owing to their antioxidant ability. The main catechin in green tea, epigallocatechin gallate (EGCG), is potentially effective against respiratory diseases, such as idiopathic pulmonary fibrosis and asthma, but its effectiveness against air-pollution-dependent lung injury has not yet been investigated. In this study, we examined the effect of EGCG on urban aerosol-induced acute lung injury in mice. Urban aerosol treatment caused increases in inflammatory cell counts, protein levels, and inflammatory cytokine expression in the lungs of ICR mice, but pretreatment with EGCG markedly suppressed these responses. Analyses of oxidative stress revealed that urban aerosol exposure enhanced reactive oxygen species (ROS) production and the formation of ROS-activated neutrophil extracellular traps (NETs) in the lungs of mice. However, ROS production and NETs formation were markedly suppressed by pretreating the mice with EGCG. Gallocatechin gallate (GCG), a heat-epimerized form of EGCG, also markedly suppressed urban aerosol-dependent inflammatory responses and ROS production in vivo and in vitro. These findings suggest that EGCG and GCG prevent acute lung injury caused by urban aerosols through their inhibitory effects on ROS production. Thus, we believe that foods and medications containing EGCG or GCG may be candidates to prevent the onset and progression of acute lung injury caused by air pollutants. Full article
(This article belongs to the Special Issue Antioxidants in Food and Waste from the Agri-Food Industry)
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13 pages, 2187 KiB  
Article
Antioxidant and Anti-Inflammatory Properties of Bioavailable Protein Hydrolysates from Lupin-Derived Agri-Waste
by Sergio Montserrat-de la Paz, Alvaro Villanueva, Justo Pedroche, Francisco Millan, Maria E. Martin and Maria C. Millan-Linares
Biomolecules 2021, 11(10), 1458; https://doi.org/10.3390/biom11101458 - 4 Oct 2021
Cited by 20 | Viewed by 2494
Abstract
Agri-food industries generate several by-products, including protein-rich materials currently treated as waste. Lupine species could be a sustainable alternative source of protein compared to other crops such as soybean or chickpea. Protein hydrolysates contain bioactive peptides that may act positively in disease prevention [...] Read more.
Agri-food industries generate several by-products, including protein-rich materials currently treated as waste. Lupine species could be a sustainable alternative source of protein compared to other crops such as soybean or chickpea. Protein hydrolysates contain bioactive peptides that may act positively in disease prevention or treatment. Inflammatory responses and oxidative stress underlie many chronic pathologies and natural treatment approaches have gained attention as an alternative to synthetic pharmaceuticals. Recent studies have shown that lupin protein hydrolysates (LPHs) could be an important source of biopeptides, especially since they demonstrate anti-inflammatory properties. However, due to their possible degradation by digestive and brush-border enzymes, it is not clear whether these peptides can resist intestinal absorption and reach the bloodstream, where they may exert their biological effects. In this work, the in vitro cellular uptake/transport and the anti-inflammatory and antioxidant properties of LPH were investigated in a co-culture system with intestinal epithelial Caco-2 cells and THP-1-derived macrophages. The results indicate that the LPH crosses the human intestinal Caco-2 monolayer and exerts anti-inflammatory activity in macrophages located in the basement area by decreasing mRNA levels and the production of pro-inflammatory cytokines. A remarkable reduction in nitric oxide and ROS in the cell-based system by peptides from LPH was also demonstrated. Our preliminary results point to underexplored protein hydrolysates from food production industries as a novel, natural source of high-value-added biopeptides. Full article
(This article belongs to the Special Issue Antioxidants in Food and Waste from the Agri-Food Industry)
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