Plant-Origin Antioxidants and Their Application and Role in Food Products: Focus on Gluten-Free Food and Diet

A special issue of Antioxidants (ISSN 2076-3921). This special issue belongs to the section "Natural and Synthetic Antioxidants".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 8964

Special Issue Editors


E-Mail Website
Guest Editor
Department of Chemistry and Biodynamics of Food, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, 10-748 Olsztyn, Poland
Interests: food technology; functional foods; bioactive compounds; gluten-free cereal-based products; supplementation; mineral compounds; pseudocereals; prebiotics; dietary fiber; by-products; food-waste revalorization, technological parameters; sensory analysis; nutritional value; nutritional intervention; gluten-related diseases; celiac disease; clinical trials
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Chemistry and Biodynamics of Food, Division of Food Sciences, Institute of Animal Reproduction and Food Research—Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
Interests: food chemistry; gas chromatography; solid phase microextraction; bioactive compounds; volatiles; Maillard reaction; thermall processing; sensomics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Edible plants, including vegetables, fruits, herbs, and cereals, play a crucial role in our diet as they are not only a source of macronutrients but also contain a number of health-related ingredients, including compounds with antioxidant properties.

Antioxidants contribute to the maintenance of well-being and health via their preventive role against adverse changes occurring in response to harmful stimuli. They are natural or synthetic compounds that inhibit the oxidation of proteins and lipids. Natural antioxidants, particularly plant-derived antioxidants, are more appealing to consumers than synthetic ones. They include phenolic compounds, carotenoids, and vitamins, mainly consisting of aromatic rings. The applications of plant-based antioxidants in food production are increasingly gaining popularity as maintaining the nutritional value of basic foods is highly important.

A gluten-free diet (GFD), though having recently gained popularity beyond its main medical indication, is recommended for individuals with gluten-related disorders (celiac disease, gluten ataxia, wheat allergy, and non-celiac gluten sensitivity). Despite the significant progress achieved in the development of gluten-free foods, this eliminative diet is rather deficient in important nutrients and health-related ingredients. Individuals on a GFD, in particular celiac patients, are exposed to high oxidative stress. They usually exhibit impaired performance of antioxidant enzymes, which form an important antioxidant barrier in the body, and are therefore prone to oxidant–antioxidant imbalance.

Oxidative stress could be minimized by the use of antioxidants in the diet. Thus, new recipes for gluten-free products containing natural antioxidants of plant origin such as vegetables, fruits, herbs, cereals, seeds, and plant by-products, are essential. We welcome original research articles, short communications, mini-reviews, and reviews covering topics related to the technological and nutritional aspects of the application of plant-derived antioxidants in food products, with a particular emphasis on their role in gluten-free foods and diet.

Dr. Urszula Krupa-Kozak
Dr. Małgorzata Starowicz
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. Antioxidants 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 2900 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

  • plant-based antioxidants
  • phenolic compounds
  • flavonoids
  • vitamins
  • fruits and vegetables
  • herbs, by-products
  • antioxidant activity
  • gluten-free and conventional food products, functional foods
  • health-related potential

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

20 pages, 4814 KiB  
Article
Spray-Drying Impact the Physicochemical Properties and Formation of Maillard Reaction Products Contributing to Antioxidant Activity of Camelina Press Cake Extract
by Emilia Drozłowska, Małgorzata Starowicz, Natalia Śmietana, Urszula Krupa-Kozak and Łukasz Łopusiewicz
Antioxidants 2023, 12(4), 919; https://doi.org/10.3390/antiox12040919 - 12 Apr 2023
Cited by 2 | Viewed by 1991
Abstract
Spray-drying is one of the most popular techniques in the food industry for converting liquid material from a fluid state into a form of dried particles to produce encapsulated or instant products. Instant products are considered as convenient foods; moreover, the goal of [...] Read more.
Spray-drying is one of the most popular techniques in the food industry for converting liquid material from a fluid state into a form of dried particles to produce encapsulated or instant products. Instant products are considered as convenient foods; moreover, the goal of encapsulation is to close the bioactive compounds in a shell, preventing them from being affected by environmental factors. The purpose of this study was to examine the influence of spray-drying conditions, in particular three inlet temperatures, on the physicochemical and antioxidant properties of powders obtained from Camelina Press Cake Extract (CPE). The CPE was spray-dried at 140 °C, 160 °C and 180 °C. The solubility, Carr and Hausner Indexes, tapped densities and water activity of the powders were analyzed. The structural changes were also detected using FTIR spectroscopy. Additionally, the characteristics of the initial and reconstituted samples and their rheological properties were evaluated. The antioxidant potential, total polyphenols and flavonoids content, free amino acids, and the Maillard reaction products contents in the spray-dried powders were also evaluated. The results indicate a cascade of changes between the initial and reconstituted samples, and important changes in the bioactive potential of samples. The inlet temperature significantly influenced the solubility, flowability and particle sizes of the powders, as well as Maillard products formation. The results of the rheological measurements illustrate the changes after the reconstitution of extracts. This study indicates the optimal parameters of CPE spray-drying, those that yield favorable physicochemical and functional values, which may open up a promising path for CPE valorization, indicating its potential and the possibilities of its use. Full article
Show Figures

Figure 1

Review

Jump to: Research

21 pages, 747 KiB  
Review
Antioxidant and Anti-Inflammatory Properties of Walnut Constituents: Focus on Personalized Cancer Prevention and the Microbiome
by Nuoxi Fan, Jennifer L. Fusco and Daniel W. Rosenberg
Antioxidants 2023, 12(5), 982; https://doi.org/10.3390/antiox12050982 - 22 Apr 2023
Cited by 2 | Viewed by 6353
Abstract
Walnuts have been lauded as a ‘superfood’, containing a remarkable array of natural constituents that may have additive and/or synergistic properties that contribute to reduced cancer risk. Walnuts are a rich source of polyunsaturated fatty acids (PUFAs: alpha-linolenic acid, ALA), tocopherols, antioxidant polyphenols [...] Read more.
Walnuts have been lauded as a ‘superfood’, containing a remarkable array of natural constituents that may have additive and/or synergistic properties that contribute to reduced cancer risk. Walnuts are a rich source of polyunsaturated fatty acids (PUFAs: alpha-linolenic acid, ALA), tocopherols, antioxidant polyphenols (including ellagitannins), and prebiotics, including fiber (2 g/oz). There is a growing body of evidence that walnuts may contribute in a positive way to the gut microbiome, having a prebiotic potential that promotes the growth of beneficial bacteria. Studies supporting this microbiome-modifying potential include both preclinical cancer models as well as several promising human clinical trials. Mediated both directly and indirectly via its actions on the microbiome, many of the beneficial properties of walnuts are related to a range of anti-inflammatory properties, including powerful effects on the immune system. Among the most potent constituents of walnuts are the ellagitannins, primarily pedunculagin. After ingestion, the ellagitannins are hydrolyzed at low pH to release ellagic acid (EA), a non-flavonoid polyphenolic that is subsequently metabolized by the microbiota to the bioactive urolithins (hydroxydibenzo[b,d]pyran-6-ones). Several urolithins, including urolithin A, reportedly have potent anti-inflammatory properties. These properties of walnuts provide the rationale for including this tree nut as part of a healthy diet for reducing overall disease risk, including colorectal cancer. This review considers the latest information regarding the potential anti-cancer and antioxidant properties of walnuts and how they may be incorporated into the diet to provide additional health benefits. Full article
Show Figures

Figure 1

Back to TopTop