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Position: Home > Articles > Extraction and Antioxidant Properties of Polyphenols from Apple FOOD SCIENCE 2011,32 (20) 95-98

苹果多酚的提取及抗氧化活性研究

作  者:
郭娇娇;方敏;林利美;宫智勇
单  位:
武汉工业学院食品科学与工程学院
关键词:
苹果多酚;抗氧化;DPPH自由基;亚铁还原能力(FRAP)
摘  要:
通过单因素及正交试验,对苹果多酚的提取工艺进行研究。确定苹果多酚的最佳提取工艺为乙醇体积分数30%、温度70℃、料液比1:6、提取时间45min,此时苹果多酚的含量为9.032mg/g。采用DPPH法和亚铁还原能力(ferric reducing ability of plasma,FRAP)法对苹果多酚的抗氧化活性进行研究,结果显示,它对DPPH自由基的清除率达到94.6%,此时其FRAP值为546.4μmol/L。
译  名:
Extraction and Antioxidant Properties of Polyphenols from Apple
作  者:
GUO Jiao-jiao1,FANG Min2,LIN Li-mei1,GONG Zhi-yong1,(1.College of Food Science and Engineering,Wuhan Polytechnic University,Wuhan 430023,China; 2.Department of Nutrition and Food Hygiene,School of Public Health,Tongji Medical College, Huazhong University of Science and Technology,Wuhan 430030,China)
关键词:
apple polyphenols;antioxidant properties;DPPH free radicals;FRAP assay
摘  要:
One-factor-at-a-time coupled with orthogonal array design method was employed to optimize the extraction of polypehnols from apple.The optimal extraction conditions were determined as follows: 30% ethanol as the extraction solvent at a material/liquid ratio of 1:6,70 ℃ temperature and 45 min extraction time.Under these conditions,the extraction yield of polyphenols from apple was 9.032 mg/g.The DPPH radical scavenging rate of apple polyphenols extracted was 94.6% and the FRAP 546.4 μmol/L.

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