Comparative assessment of phenolics,antioxidant and antiproliferative activities between Hippophae rhamnoides ssp.sinensis and H.tibetana leaf in Qinghai-Tibet Plateau  

作　　者：Juan Wei Tingting Su Hailan Su Yumei Jiang Jixin Li Yang Bi 

机构地区：[1]College of Food Science and Engineering,Gansu Agricultural University,Lanzhou,730070,China

出　　处：《Food Bioscience》2022年第2期148-157,共10页食品生物科学（英文）

基　　金：This work has been funded by China-Russia International Science and Technology Cooperation Base of Sea Buckthorn Processing Technology in Gansu Province(Science and Technology Department of Gansu Province),China-Russian Sea Buckthorn Joint Research Center(Ministry of Education of the People’s Republic of China)and Natural Science Foundation of Gansu Province(20JR10RA514).

摘　　要：Hippophae rhamnoides ssp.sinensis(Rha)and H.tibetana(Tib)are two species of sea buckthorn which distribute in Qinghai-Tibet Plateau.Our results showed that both sea buckthorn leaf exhibited high total phenolic and flavonoid content,and Rha leaf showed much higher level.In addition,66 phenolic compounds were detected,belonging to classes of benzoic acid derivatives,flavonols,flavanols,flavanones,and so on.Classes of benzoic acid derivatives and flavonols were most abundant,among them ellagic acid and rutin were the most and second abundant phenols.Besides,methyl gallate,2,6-dihydroxybenzoic acid,4-hydroxybenzoic acid,gentisic acid,narcissin,astragalin,nicotiflorin,prunin,procyanidin B3,cyanidin 3-O-rutinoside chloride,delphinidin 3-glucoside,gallocatechin,taxifolin,aromadendrin and trans-3,3′,4′,5,5′,7-Hexahydroxyflavanone were the first time to be identified in SBT leaf.Furthermore,significant free radical scavenging effects of ABTS and DPPH,ferric reducing antioxidant ability,cellular antioxidant properties and anti-proliferation activity against HepG2 cells were observed in the aqueous ethanol extracts of sea buckthorn leaf.While Rha showed stronger inhibitory effects,which might due to the higher content of total phenolic and flavonoid profiles.Our finding clearly supported that Rha leaf as a wild and non-pollution plant could be a better choice as a healthy food resource.

关 键 词：Sea buckthorn Phenolic compounds FLAVONOIDS Antioxidant capacity Antiproliferation activity 

分 类 号：O62[理学—有机化学]