Special Issue "Advances in Plant Methods: Antioxidant Activity in Plant Extracts"

A special issue of Antioxidants (ISSN 2076-3921). This special issue belongs to the section "Extraction and Industrial Applications of Antioxidants".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 985

Special Issue Editors

Department of Biochemistry and Molecular and Cellular Biology of Plants, Spanish National Research Council, CSIC, Granada, Spain
Interests: fruit and vegetable antioxidants; proteomics; fruit ripening; reactive oxygen; and nitrogen species metabolism; signaling processes; abiotic stress; nitric oxide extract
Special Issues, Collections and Topics in MDPI journals
Dr. Salvador González Gordo
E-Mail Website
Co-Guest Editor
Department of Biochemistry and Molecular and Cellular Biology of Plants, Spanish National Research Council, CSIC, Granada, Spain
Interests: plant antioxidants; nitric oxide; reactive oxygen and nitrogen species; fruit ripening; abiotic/biotic stress; omics

Special Issue Information

Dear Colleagues,

Plants and fruits are a source of food and play an essential role in maintaining a balance against environmental factors including human-induced stressors, which are becoming a crucial problem nowadays. These stressors and changes affect all stages of the plant’s lifecycle, from development to fruit ripening. A growing number of investigations have shown the significance of good extraction and analysis methods, based on innovation and type of plant, to evaluate several issues.

It is a conditional of quality research that it possesses excellent tools of work such as extraction methods appropriate for analysis of factors such as the following:

  • Abiotic/biotic stress;
  • Antioxidant metabolism;
  • Nitro-oxidative stress;

The present Special Issue of Antioxidants aims to provide the most current extraction and analysis methods in plants and fruits, as well as to improve and extend the knowledge of higher plants related to mechanism of action, antioxidant metabolism, and abiotic/biotic stress. This Special Issue is open to different types of manuscripts, including reviews, original research papers, or new methods.

Dr. Marta Rodríguez-Ruiz
Dr. Salvador González Gordo
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

  • extraction methods
  • antioxidants
  • ripening
  • post-translational modification (PTMs)
  • redox signaling
  • nitro-oxidative stress
  • plant development
  • reactive oxygen species (ROS)
  • nitrogen oxygen species (RNS)
  • abiotic stress
  • biotic stress
  • nitric oxide
  • signaling processes
  • proteomics

Published Papers (1 paper)

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Research

21 pages, 3459 KiB  
Article
Extraction of Bioactive Compounds from Prestonia mollis Leaves and Their Impregnation into Polylactic Acid Using High-Pressure Technologies: Potential for Biomedical Application
Antioxidants 2023, 12(10), 1864; https://doi.org/10.3390/antiox12101864 - 15 Oct 2023
Viewed by 759
Abstract
Enhanced solvent extraction (ESE) and pressurized liquid extraction (PLE) have been used for the first time to obtain antioxidant compounds from Prestonia mollis leaves. The effects of pressure (100–250 bar), temperature (55–75 °C) and the composition of the extraction solvent (ethanol, water and [...] Read more.
Enhanced solvent extraction (ESE) and pressurized liquid extraction (PLE) have been used for the first time to obtain antioxidant compounds from Prestonia mollis leaves. The effects of pressure (100–250 bar), temperature (55–75 °C) and the composition of the extraction solvent (ethanol, water and hydroalcoholic mixtures) were evaluated according to multilevel factorial designs. PLE provided the largest extraction yields compared to ESE, as well as a greater impact of the operating conditions studied. The highest total phenolic content was obtained when using a hydroalcoholic mixture (CO2/ethanol/water 50/25/25) through ESE at 100 bar and 75 °C. The antioxidant capacity of this extract is related to higher concentration levels of the identified flavonoids: Quercetin 3-O-xylosyl-rutinoside, Kaempferol 3-(2G-apiosylrobinobioside) and Kaempferol 4′-glucoside 7-rhamnoside. This extract was tested for the supercritical impregnation of polylactic acid (PLA), which is a polymer widely used in the biomedical industry. The influence of pressure (100–400 bar), temperature (35–55 °C), amount of extract (3–6 mL) and impregnation time (1–2 h) have been evaluated. The best results were obtained by impregnating 3 mL of extract at 100 bar and 55 °C for 2 h, achieving 10% inhibition with DPPH methods. The extract presented a potentially suitable impregnation of PLA for biomedical applications. Full article
(This article belongs to the Special Issue Advances in Plant Methods: Antioxidant Activity in Plant Extracts)
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