Category:FL/Bioactivity

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Photoprotectant, anti-oxidant activity (More Information)

Not only anthocyanins but even simple structures such as chalcone can absorb UV wavelengths strongly. The ability of photoprotection is derived from its anti-oxidative activity.

Hypotensive activity

Quercetin in onions and flavanols in cocoa are said to reduce blood pressure in hypertensive animals ^[1], but their effect or mechanism is not clinically conclusive.

Anti-bacteria, anti-fungal activity

Tannins (proanthocyanidins) show anti-bacterial activity.

1. ↑ Hooper L, Kroon PA, Rimm EB, et al. (2008) "Flavonoids, flavonoid-rich foods, and cardiovascular risk: a meta-analysis of randomized controlled trials" Am J Clin Nutr 88:38–50 PMID 18614722