Dear Colleagues,

Antioxidant substances have garnered significant attention due to their superior ability to prevent biological components from oxidizing and to protect the body against harmful and carcinogenic reactive oxygen species. Thus, antioxidants are essential for sustaining human health. Antioxidants were found to have a protective role against many diseases, including cancers, cardiovascular diseases, and neurological diseases. Currently, various natural foods are ingested due to their nutritional antioxidant value, and many dietary supplements containing antioxidants are on the market. Therefore, a simple and rapid method for the assay, evaluation, and even imaging of antioxidant capacity in food samples and biological specimens would be useful to assess the performance of dietary supplements in vitro and in vivo and discover new effective antioxidants in natural foods.

Currently, there are many reported antioxidant extraction and assays in the literature; however, they suffer from various drawbacks, including low sensitivity, bad selectivity, long analysis time, poor extraction efficiency, the use of complicated instruments, or the use of electrochemical sensors that are deactivated by complex matrices. Hence, new innovative methods for the extraction, assay, and imaging of antioxidants in food samples and biological specimens and cells that overcome the drawback of the methods in the literature are urgently needed.

This Special Issue, entitled “New Techniques for Extraction, Assay, and Imaging of Antioxidants”, seeks papers that focus on the development of new extraction, assay, and imaging techniques for antioxidants in food samples and biological specimens. Authors are invited to submit articles focused on new and efficient extraction techniques of antioxidants, simple and rapid antioxidant assays, and efficient and sensitive antioxidant imaging. Papers on the characterization and evaluation of natural antioxidants from different food sources and manuscripts that deal with the synthesis and evaluation of new antioxidants will also be very well received.

Dr. Naoya Kishikawa
Dr. Mahmoud El-Maghrabey
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.

• antioxidant extraction
• antioxidant assay
• biological samples
• oxidative stress status
• nutritional value
• food analysis
• redox cycle
• cell imaging