湖北农业科学 ›› 2020, Vol. 59 ›› Issue (9): 141-144.doi: 10.14088/j.cnki.issn0439-8114.2020.09.030

• 贮藏·加工 • 上一篇    下一篇

北虫草CNZ虫草酸提取方法的筛选和优化

林爱华1, 苗莉云2, 王俊玲1, 李惠1, 宋发军1, 张鹏1   

  1. 1.中南民族大学生命科学学院/生物技术国家民委重点实验室/武陵山区特色资源植物种质保护与利用湖北省重点实验室,武汉 430074;
    2.山西中医药大学基础医学院,山西 晋中 030619
  • 收稿日期:2019-08-22 发布日期:2020-07-22
  • 通讯作者: 张鹏(1977-),男,副教授,博士,主要从事药用植物与药用微生物研究,(电话)027-6784269(电子信箱)zhangpenghust@126.com。
  • 作者简介:林爱华(1977-),女,山东烟台人,讲师,博士,主要从事应用生物化学研究,(电话)027-67842689(电子信箱)lah1990163.com。
  • 基金资助:
    国家自然科学基金(31370118; 31770134); “武陵山区特色资源植物种质保护与利用湖北省重点实验室建设"基金项目(2018BFC360); 中南民族大学基本科研业务费专项资金资助项目(CZT18005,18006,18007)

Screening and optimization of cordycepic acid extraction method of Cordyceps militaris CNZ

LIN Ai-hua1, MIAO Li-yun2, WANG Jun-ling1, LI Hui1, SONG Fa-jun1, ZHANG Peng1   

  1. 1. National Committee Key Laboratory for Biotechnology/Hubei Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China/College of Life Sciences, South-Central University for Nationalities, Wuhan 430074, China;
    2. College of Basic Medical Sciences, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi, China
  • Received:2019-08-22 Published:2020-07-22

摘要: 为获得北虫草(Cordyceps militaris)CNZ虫草酸最适的提取方法,比较了6种虫草酸提取方法,结果表明超声辅助醇提法虫草酸的得率最高,达113.31 mg/g,可作为初始提取方法。进一步通过单因素试验和正交试验优化提取次数、固液比、超声时间、乙醇浓度等条件,获得北虫草CNZ虫草酸提取条件为:乙醇浓度20%(体积分数),固液比1:10(g:mL),超声时间20 min,提取次数3次;在优化的提取条件下,北虫草CNZ虫草酸得率为161.06 mg/g,与初始提取条件相比提高了42.1%。

关键词: 北虫草(Cordyceps militaris), 虫草酸, 提取方法, 优化

Abstract: In order to obtain the optimal cordycepic acid extraction method of Cordyceps militaris CNZ, six extraction methods were used to extract cordycepic acid of C. militaris CNZ, respectively, and the extraction yield of cordycepic acid with ultrasonic-associated ethanol extraction method was the maximum for 113.31 mg/g, so was selected as one suitably initial method. Subsequently, the extraction conditions, including extraction times, solid-liquid ratio, ultrasonic time and ethanol concentration, were further optimized by single factor experiments and orthogonal experiments. One optimized cordycepic acid extraction method of C. militaris CNZ was obtained as that: ethanol concentration was 20%(volume fraction), solid-liquid ratio was 1:10(g:mL), ultrasonic time was 20 min and extraction times was three. Using the optimized extraction method, the extraction yield of cordycepic acid of C. militaris CNZ was 161.06 mg/g, which was about 42.1% higher than that using the initial extraction method.

Key words: Cordyceps militaris, cordycepic acid, extraction method, optimization

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