Phytochemical Profiles and Biological Activities of Five Wild Camellia Species from Ta Dung, Vietnam

Abstract

The C. luuana (TD3), C. furfuracea (TD4), C. bidoupensis (TD6), C. sinensis (L.) (TD7), and C. kissii (TD8), have been traditionally used as a health‐promoting beverage by local people in Ta Dung, Dak Nong. Despite their potential health benefits, further scientific data on biological and phytochemical properties of these plants is needed. This study aimed to investigate phytochemical and biological properties of five Camellia species extracts, using DPPH, ABTS radical scavenging, copper chelating (Cu‐chelator), and tyrosinase inhibition (TI), α‐amylase (Al‐AI), and α‐glucosidase (Al‐GI) analyses. Ten compounds were identified using UPLC method, in which catechins (mainly EGCG and catechin (Cat)), were the most prevalent, and followed by chlorogenic acid (ChlA), quercitrin (Querci), rutin, and quercetin (Querce). Multiple factor analysis (MFA) also revealed that TD7, TD3, and TD4 containing high TPC, TFC, EGCG, ChlA, and caffeine were responsible for their high DPPH, ABTS radical scavenging activities and TI, Al‐AI and Al‐GI. TD6 and TD8, possessing elevated levels of Apig, Querce, Rutin, Querce, Cat, and EA, exhibited a high Cu‐chelator property, but a weak enzyme inhibition. From all above‐mentioned results, the antioxidative and enzyme inhibitory potentials of Camellia species extracts were scientifically demonstrated paving a pathway to develop health supplement in further studies