Conventional and Unconventional Source of Non-Enzymatic Antioxidants

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

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 5256

Special Issue Editor


E-Mail Website
Guest Editor
Institute of Horticulture, Latvia University of Life Sciences and Technologies, Graudu 1, Dobele LV-3701, Latvia
Interests: unconventional sources of oil and natural bioactive compounds of hydrophilic and lipophilic nature; analytical techniques for phytochemicals determination
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Antioxidants are chemical substances which are produced by living organisms for self-defense. From antioxidants, it is required to donate an electron to a rampaging free radical and neutralize it, and at the same time to create a relatively stable molecule, thereby stopping or reducing potential damage. Natural antioxidants can be generally classified as enzymatic or non-enzymatic. A rich and varied composition of non-enzymatic antioxidants of a lipophilic or hydrophilic nature can be found in conventional and unconventional sources of plant material. Extraction, isolation, purification, combination, antioxidant activity, dose, and finally potential applications of natural antioxidants are an important issue from a human health point of view, since even natural antioxidants can be both healthy and toxic.

We invite you to submit your latest research findings as full-length or short communication papers as well as review articles to this Special Issue, which will bring together current research concerning conventional and unconventional sources of non-enzymatic antioxidants and their profile, extraction, isolation, purification, determination, and, finally, potential applications. This research can include the following topics: composition and concentration of molecules with potential antioxidant activity in various conventional and unconventional plant materials, the evolution of dietary antioxidants during plant growth, optimization of extraction, isolation, purification, identification of phytochemicals of an antioxidant nature, potential applications, and research progress in natural antioxidants and future perspectives.

We look forward to your valuable contribution.

Dr. Pawel Gornas
Guest Editor

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

  • Antioxidants
  • Phenolic compounds
  • Polyphenols
  • Tocochromanols
  • Carotenoids
  • Antioxidant activity
  • Antioxidant assays
  • Extraction
  • Isolation
  • Identification

Published Papers (1 paper)

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

Research

27 pages, 2217 KiB  
Article
Analytical Profile and Antioxidant and Anti-Inflammatory Activities of the Enriched Polyphenol Fractions Isolated from Bergamot Fruit and Leave
by Giovanna Baron, Alessandra Altomare, Marco Mol, Jessica Leite Garcia, Camila Correa, Angela Raucci, Luigi Mancinelli, Sarah Mazzotta, Laura Fumagalli, Giuseppe Trunfio, Luigi Tucci, Elena Lombardo, Domenico Malara, Elzbieta Janda, Vincenzo Mollace, Marina Carini, Ezio Bombardelli and Giancarlo Aldini
Antioxidants 2021, 10(2), 141; https://doi.org/10.3390/antiox10020141 - 20 Jan 2021
Cited by 34 | Viewed by 4885
Abstract
The aim of the study is to compare the qualitative and semi-quantitative profile of the polyphenol fraction purified from the leaf (BLPF) and fruit (BFPF) of bergamot (Citrus bergamia), and to evaluate their antioxidant and anti-inflammatory activity. The analytical qualitative profile [...] Read more.
The aim of the study is to compare the qualitative and semi-quantitative profile of the polyphenol fraction purified from the leaf (BLPF) and fruit (BFPF) of bergamot (Citrus bergamia), and to evaluate their antioxidant and anti-inflammatory activity. The analytical qualitative profile was carried out by LC-ESI/MS using three different approaches: targeted (searching analytes already reported in bergamot extract), semi-targeted (a selective search of 3-hydroxy-3-methylglutarate [HMG] derivatives involved in the cholesterol reducing activity of BPF) and untargeted. A total number of 108 compounds were identified by using the three approaches, 100 of which are present in both the extracts thus demonstrating a good qualitative overlapping of polyphenols between the two extracts. The antioxidant activity was higher for BLPF in respect to BFPF but when normalized in respect to the polyphenol content they were almost overlapping. Both the extracts were found to dose dependently inhibit cell inflammation stimulated with IL-1α. In conclusion, the comparison of the qualitative and quantitative profile of polyphenols as well as of the antioxidant and anti-inflammatory activity of bergamot leaf and fruit well indicates that leaf is a valid source of bergamot polyphenol extraction and an even richer source of polyphenol in respect to the fruit. Full article
(This article belongs to the Special Issue Conventional and Unconventional Source of Non-Enzymatic Antioxidants)
Show Figures

Graphical abstract

Back to TopTop