葡萄皮中多酚的提取及其抗氧化活性研究  

Study on Extraction of Polyphenol from Grape Peel and Its Antioxidant Activity

作　　者：范济民[1] 赵志换[1] 穆瑞娜[1] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024

出　　处：《化学与生物工程》2010年第10期59-61,共3页Chemistry & Bioengineering

基　　金：山西省自然科学基金资助项目(2008021015);太原理工大学青年科技发展基金资助项目(900103-03020155)

摘　　要：通过单因素实验和正交实验,对葡萄皮多酚的浸提工艺进行了优化,确定最佳浸提条件为:浸提温度80℃、乙醇体积分数50%、浸提时间30 min、料液比1∶9(g∶mL)。在此条件下浸提2次,葡萄皮多酚浸提量达13.065 mg.g-1。对葡萄皮多酚的抗氧化活性进行了研究,当葡萄皮多酚提取液用量为2.5 mL时,羟基自由基的清除率约为55%。In this paper,the extraction process of polyphenol from grape peel was studied by single factor experiment and orthogonal experiment.The optimum extraction conditions were determined as follows：the extraction temperature 80℃,the volume fraction of ethanol 50%,the extraction time 30 min,the ratio of material to liquid 1∶9.Extracted under above conditions for two times,the extraction amount of polyphenol from grape peel reached 13.065 mg·g-1.The antioxidant activity of polyphenol abtained was explored.It was found that the cleavage rate of hydroxyl radicals was about 55% when the dosage of polyphenol extraction solution was 2.5 mL.

关 键 词：葡萄皮 多酚 提取 抗氧化活性 

分 类 号：Q946.91[生物学—植物学]