Phenolic Profiles and Antioxidant Activity of Litchi (Litchi Chinensis Sonn.) Fruit Pericarp from Different Commercially Available Cultivars
文献类型: 外文期刊
作者: Li, Wu 1 ; Liang, Hong 1 ; Zhang, Ming-Wei 1 ; Zhang, Rui-Fen 1 ; Deng, Yuan-Yuan 1 ; Wei, Zhen-Cheng 1 ; Zhang, Yan 1 ;
作者机构: 1.Guangdong Acad Agr Sci, Biotech Res Inst, Key Lab Funct Food Res, Minist Agr, Guangzhou 510610, Guangdong, Peoples R China
关键词: phenolics;anthocyanins;procyanidins;litchi fruit pericarp;antioxidant activity
期刊名称:MOLECULES ( 影响因子:4.411; 五年影响因子:4.587 )
ISSN: 1420-3049
年卷期: 2012 年 17 卷 12 期
页码:
收录情况: SCI
摘要: Litchi fruit pericarp (LFP) contains significant amounts of phenolics which have been found to exhibit diverse biological activities. The purpose of this work was to determine the varietal differences in phenolic profiles and antioxidant activity of LFP from nine commercially available cultivars. The total phenolic and flavonoid contents ranged from 9.39 to 30.16 mg gallic acid equivalents/g fresh weight (FW) and from 7.12 to 23.46 mg catechin equivalents/g FW, respectively. The total anthocyanin contents ranged from 1.77 to 20.94 mg cyanidin-3-glucoside equivalents/100 g FW. Three anthocyanins, including cyanidin-3-rutinoside, cyanidin-3-glucoside, malvidin-3-glucoside, were detected, and cyanidin-3-rutinoside was the predominant constituent which contributes from 68.8% to 100% to total anthocyanins, The total procyanidin contents ranged from 4.35 to 11.82 mg epicatechin equivalents/g FW. Procyanidin B2, epicatechin, A-type procyanidin trimer, and procyanidin A2 were detected in all nine litchi varieties. The oxygen radical absorbance capacity activities and DPPH radical-scavenging activities ranged from 430.49 to 1752.30 mu mol TE/100 g FW and from 4.70 to 11.82 mg/g (IC50), respectively. These results indicate that there are significant differences in phytochemical profiles and antioxidant activity among the tested varieties. Knowing the phenolic profiles and antioxidant activity of LFP of different varieties gives the insights into its potential application to promote health.
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