槲叶中膳食纤维的提取  

Study on the Extraction and Antioxidation of Dietary Fiber in Quercetin

作　　者：林以琳 侯笑林[1] Lin Yilin;Hou Xiaolin(Food Engineering College,Qingdao University of Technology,Qingdao 266300,China)

机构地区：[1]青岛工学院食品工程学院,山东青岛266300

出　　处：《现代食品》2018年第11期167-171,共5页Modern Food

基　　金：青岛工学院2016年度董事长科研资助基金项目"槲叶膳食纤维的提取;抗氧化活性研究及应用"(编号:2016CX027)

摘　　要：以槲叶为原料,采用超声辅助酶碱法提取槲叶可溶性膳食纤维,通过超声酶解过程的单因素及正交试验,确定其最佳提取工艺;在超声酶解过程最佳提取条件下,通过碱解过程的单因素及正交试验,得到碱解过程的最佳提取条件。结果表明,超声酶解过程最佳提取工艺为料液比1∶20、超声时间6 min、酶添加量1.5%、酶解时间60 min;碱解过程最佳提取条件为料液比1∶35、碱液浓度0.5%、碱解温度70℃、碱解时间90 min。在此条件下,槲叶可溶性膳食纤维提取率可达27.93%。Use uercophyllum as raw material and use the ultrasonic assisted enzyme alkali distillation plant,leaf soluble dietary fiber by single factor and orthogonal test of ultrasonic digestion process,determine the optimal extraction process.Under the optimal extraction condition of alkali solution was obtained by the single factor and orthogonal test of the process of alkali solution under optimal extraction condition of ultrasonic enzyme solution.The results showed that the optimal extraction process of ultrasonic enzyme solution was:liquid ratio 1∶20,ultrasonic time 6min,enzyme added 1.5%,enzyme time 60min.The optimal extraction process of alkaline hydrolysis solution was:liquid ratio 1∶35,alkaline solution concentration 0.5%,alkaline hydrolysis temperature 70℃,alkaline hydrolysis time of 90 min.Under this condition,the soluble dietary fiber extraction rate of the uercophyllum could reach 27.93%.

关 键 词：槲叶 超声 酶碱法 可溶性膳食纤维 

分 类 号：S666[农业科学—果树学]