【作者】 齐笑笑； 张雪平； 刘春燕； 黎积誉； 秦改花；

【Author】 QI Xiao-xiao;ZHANG Xue-ping;LIU Chun-yan;LI Ji-yu;QIN Gai-hua;College of Agriculture,Medicine and Health,Anhui Radio and Television University;Horticultural Research Institute,Key Laboratory of Genetic Impravement and Ecophysiology of Horticultural Crop,Anhui Provinece,Anhui Academy of Agricultural Sciences;College of Agriculture,Anhui Science and Technology University;Key Laboratory of Fruit Development and Quality Biology,Anhui Academy of Agricultural Sciences;

【机构】 安徽广播电视大学农业与医疗卫生学院； 安徽科技学院农学院； 安徽省农业科学院园艺研究所/园艺作物种质创制与生理生态安徽省重点实验室； 果树果实发育与品质生物学安徽省农业科学院重点实验室；

【摘要】 为提高石榴果皮中单宁的提取率,促进石榴的综合利用,本研究在比较静置、振荡以及超声波辅助提取方式对石榴果皮单宁提取效果及提取物还原能力研究的基础上,通过单因素试验及正交试验优化了石榴果皮中单宁的提取工艺。结果表明,超声波辅助提取法提取含量高,耗时少,且提取物有较强的还原能力。最优工艺条件为:乙醇体积分数为60%、超声温度30℃、提取时间35min、料液比为1:50,超声波功率为50W,在此条件下的提取量为172.24mg/g。更多还原

【Abstract】 To improve the yield of tannins extraction from pomegranate peel and promote its comprehensive utilization,extraction procedures of tannins was optimized by using single factor and orthogonal tests,basing on the extraction efficiency and reducing capacity of extractive of standing extraction,shaking extraction and ultrasonic assisted extraction.Results showed that the ultrasonic-assisted extraction of tannins got high yield with less time consuming and having high reducing capacity.The optimum extraction procedure was as follows:ethanol concentration 60%,material to solvent ratio 1:50（mL/g）,extraction temperature 30℃and ultrasonic power 50 W.The maximum yield of tannins was 172.24 mg.g^-1.更多还原