现代食品科技2017，Vol.33Issue(9)：91-95,292,6.DOI:10.13982/j.mfst.1673-9078.2017.9.013
不同品种山楂活性成分及其抗氧化活性的研究
Bioactive Compounds of Different Hawthorn Cultivars and Their Antioxidant Activities
摘要
Abstract
The antioxidant properties of two common hawthom cultivars,Shanlihong and Dajinxing,which are widely grown in the Shandong province of China,were examined.The total phenolic content (TPC),total flavonoid content (TFC),and antioxidant activity of hawthom powder prepared by freeze-drying were measured.Antioxidant activity was assessed based on 2,2-diphenyl-l-picrylhydrazyl (DPPH) radical scavenging capacity,oxygen radical absorbance capacity (ORAC),and rapid peroxyl radical scavenging capacity (PSC).Moreover,differences in the identity and quantity of active components with antioxidant activities between the two cultivars were analyzed by high performance liquid chromatography (HPLC).The TPC and TFC of the Shanlihong extract (61.91 mg gallic acid equivalents/g DW and 55.96 mg catechin equivalents/g DW,respectively) were significantly higher than those of the Dajinxing extract.While both of the hawthom fruit extracts had high antioxidant activity,the Shanlihong extract showed higher antioxidant activity than the Dajinxing extract,with a 1.54-fold higher ORAC and a two-fold higher PSC.Analysis of the hawthom fruit extracts by HPLC led to the identification of seven polyphenols.Procyanidin B2 and epicatechin were the predominant phenolic compounds in both the Shanlihong and Dajinxing cultivars,and the polyphenol content of the Shanlihong cultivar was significantly higher than that of the Dajinxing cultivar.This comprehensive evaluation shows that the quantity and type of bioactive components in hawthorn differ between different cultivars,and that the Shanlihong cultivar,which has stronger antioxidant activity than the Dajinxing cultivar,is a potential source of natural antioxidants.关键词
山楂/总酚/总黄酮/抗氧化性Key words
hawthorn/total phenolics/total flavonoids/antioxidant activity引用本文复制引用
张晓波,邓捷,温玲蓉,游丽君..不同品种山楂活性成分及其抗氧化活性的研究[J].现代食品科技,2017,33(9):91-95,292,6.基金项目
广东省自然科学基金项目(2014A030313242) （2014A030313242）
中央高校基本科研业务费项目(201577110) （201577110）
广东省特支计划青年拔尖人才项目(2015TQ01N670) （2015TQ01N670）
广州市珠江科技新星项目(201610010096) （201610010096）
