贵州矮杨梅茎总黄酮的提取及含量积累规律  

Extracting Crafts and Changes of Total Flavonoids Content in the Stem of Myrica nana in Guizhou

作　　者：张来[1] 

机构地区：[1]安顺学院化学与生物农学系,贵州安顺561000

出　　处：《食品研究与开发》2012年第4期56-59,共4页Food Research and Development

基　　金：贵州省教育厅自然科学基金研究项目<贵州矮杨梅保护生物学与特征药用成分研究>(黔教科2005224)

摘　　要：就贵州矮杨梅植物茎中总黄酮的提取工艺和含量动态变化进行实验分析,结果指出,贵州矮杨梅茎中总黄酮提取的最佳工艺条件为提取时间为1.5 h,乙醇浓度为75%,料液比为1∶30(mg/L);总黄酮含量的高低在不同生育期中的动态变化规律是,雌株依次为盛花期、果熟期、营养期、孕花期;雄株依次为孕花期、果熟期、营养期、盛花期。作为药材,其最佳采收期雌株以盛花期(5.75%)和果熟期(5.73%)为宜,雄株以营养期(6.36%)、孕花期(6.61%)、果熟期(6.6%)为宜。The extrating crafts and dynamic changes of total flavanonids content in the stem of Myrica nana was analyzed.The results showed the optimum conditions of extraction were as follows extracting time 1.5 h,the con centration of ethyl alcohol 75 %,the rate of fluid to solid 1∶30（mg/L）.For the dynamic changes of total flavanonids＇ content,the female in turn was flower period,fruit period,nourishment period,pregnant flower period;the male in turn was pregnant flower period,fruit period,nourishment period,flower period.For the Med Mat,the best collection period was flower period（5.75 %） and fruit period（5.73 %） for the female;and was nourishment period（6.36 %）,pregnant flower period（6.61 %）and fruit period（6.6 %） for the male.

关 键 词：矮杨梅 总黄酮 含量变化 提取工艺 

分 类 号：S667.6[农业科学—果树学]