梨花熊果苷提取工艺及体外抗氧化性初步研究  

Arbutin Extraction from Pear Blossoms and preliminary study of Its Antioxidant Activity in Vitro

作　　者：付士慧[1] 朱文学[1] 

机构地区：[1]河南科技大学食品与生物工程学院,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2017年第5期55-59,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(31171723)

摘　　要：为了提高梨花熊果苷提取率,在乙醇体积分数、液料比、超声功率和超声时间单因素试验的基础上,进行了Design Expert 7.0软件设计响应面试验。试验结果表明:乙醇体积分数70%、液料比63 mL/g、超声功率271 W和超声时间50 min时,梨花熊果苷的提取率达到最大,为2.575 3%。梨花熊果苷提取液对羟基自由基和1,1-二苯基-2-三硝基苯肼(DPPH)自由基具有较强的清除能力。In order to improve the extraction rate of pear blossoms arbutin,the response surface test was designed by Design Expert7. 0 software based on single factor tests of ethanol concentration,solid-liquid ratio,ultrasonic power and ultrasonic time. The results show that when the technological parameter of arbutin extraction from pear blossoms is ethanol 70%( volume fraction),solid-liquid ratio 63 m L/g,ultrasonic power 271 W and ultrasonic time 50 min,the extraction of arbutin rate reaches a maximum of 2. 575 3%. The arbutin extracting solution extracted from pear blossoms has strong scavenging ability on hydroxyl free radical and 1. 1-diphenyl-2-picrylhydrazyl free radical.

关 键 词：梨花 熊果苷 超声 二次通用旋转组合设计 抗氧化性 

分 类 号：TS209[轻工技术与工程—食品科学]