Antioxidant Activity of Polyphenolic Plant Extracts

Dear Colleagues,

Plant polyphenols are secondary metabolites characterised by one or more hydroxyl groups binding to one or more aromatic rings. Several thousand polyphenolic molecules have been identified in higher plants, including edible ones. Plant polyphenols are divided into two major groups, flavonoids and non-flavonoids. Flavonoids can be divided into flavanols, flavonols, anthocyanidins, flavones, flavanones, and chalcones. Non-flavonoids include stilbene, phenolic acids, saponin, and tannins. Among the important biological properties exhibited by plant polyphenols, their antioxidant activity has raised a great interest . A number of studies have shown that plant polyphenols could be used as antioxidants against different oxidative stress-induced diseases. We invite you to submit your latest research findings or a review article to this Special Issue, which will bring together current research concerns and critical thinking on the antioxidant activity of polyphenolic plant extracts. The identification of the polyphenolic composition of plant extracts in the submitted articles is required. Your contribution can include both in vitro and in vivo studies relating to different aspects of the antioxidant activity of polyphenolic extracts, such as structure–activity relationships, regulation of endogenous antioxidant responses, and their role in signaling, metabolism, cell cycle, gene regulation, cellular stress, and prevention of diseases.

Dr. Dimitrios Stagos
Guest Editor

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