Quercetin, rutin, tannins, coumarins, resveratrol, curcumin, epigallocatechin-3-gallate, epicatechin, etc. have antioxidant properties

Check https://pubmed.ncbi.nlm.nih.gov/10924197/

Hi Dr Aimé-Jhustelin Abogo Mebale . See the following useful RG link: Article Antioxidant Activity and Phenolic and Flavonoid Contents of ...

Kindly see also the following useful link: https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/flavonoids

Also see kindly the following useful RG link: Article Flavonoids as natural phenolic compounds and their role in t...

See the following very good RG link: Article A Review of the Antioxidant Mechanisms of Polyphenol Compoun...

https://doi.org/10.1016/j.plaphy.2019.09.039

https://doi.org/10.3390/medicines5030093

https://doi.org/10.1016/S0039-9140(99)00331-8

http://dx.doi.org/10.5433/1679-0359.2010v31n3p669

Good Luck.

Also look at this paper

http://www.scielo.br/j/cta/a/x3MFSfZRRNHB8Jk8LG8yVny/?format=pdf&lang=en

Thanks

• Please see this paper we published recently about phlorotannins

• Article Phlorotannins: A review of extraction methods, structural ch...

The most popular flavonoids with highly antioxidant activity are flavonols. Aglycon moiety is more active than its glycosylated form.