苹果醋清除DPPH自由基活性成分的研究.doc

苹果醋清除DPPH自由基活性成分的研究.doc:..苹果醋清除DPPH自由基活性成分的研究张雾红,张永茂,黄玉龙,韩舜愈(,甘肃兰州730070;,廿肃兰州730070)摘要:以苹果、酵母菌和醋酸菌为试验材料,采用小同的发酵下艺,对4种苹果醋样品进行抗氧化活性成分分析和DPPII口由基清除率的测定,研究其主要活性成分含量与DPPH自由基清除率之间的相关性。结果表明:苹果醋具冇较高的抗氧化活性成分和较强的抗氧化能力,其屮固态发酵苹果醋屮总酚、,;当加入质量浓度200Pg/mL苹果醋时,%,总酚、总黄酮含量和DPPH自由基清除率Z间冇较高的相关性,,。关键词:苹果醋:DPPH自曲基:活性成分DPPHfreeradicalsscavengingactivitybyapplecidervinegarZHANGJi-hong,ZHANGYong-mao,HUANGYu-long,HANShun-yu(,GansuAgriculturalUniversity,Lanzhou730070,China;,GansuAcademyofAgriculturalSciences,Lanzhou730070,China)Abstract:ponentandDPPHfreeradicalsscavengingactivewerestudiedbyfourkindsofapplecidervinegarsamplesofthedifferentfermentationprocess・Theresultsshowedthatapplecidervinegarhadahigherantioxidantactivity;thecontentsoftotalphenol,,-statefermentationapplecidervinegar,%whentheconcentrationofapplecidervinegarwas200ng/,:applecidervinegar;DPPHfreeradicals;activeingredient苹果醋(applecidervinegar)是以苹果为主要原料,经二次发酵(洒精发酵、醋酸发酵)制成的具有酯香和果香味的酷,含有丰富的营养成分,具有