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古尼虫草抗肿瘤活性成分的提取分离及活性测定

作  者:
朱振元;陈熙;周家萍;刘安军;张雅洁;张勇民
单  位:
天津科技大学食品工程与生物技术学院;法国巴黎第六大学生物有机化学研究所(UMR
关键词:
古尼虫草;提取;分离;抗肿瘤
摘  要:
虫草是一类珍贵的生物资源,本实验对古尼虫草菌丝体甲醇提取物的抗肿瘤活性成分进行了研究。通过甲醇浸提、正己烷、乙酸乙酯萃取得到古尼虫草甲醇粗提物0.6194g,其得率为2.06%。将得到的甲醇粗提物用乙醚:正己烷:甲醇=5:5:1的溶液为洗脱剂进行硅胶柱层析分离纯化,获得3个组分(FB1、FB2、FB3)。通过红外光谱和核磁共振H谱对分离组分FB3进行了初步检测,结果显示为甾体类化合物。采用MTT比色法检测分离组分FB3的抗肿瘤活性,发现其对MCF-7和HL-7702细胞株有抑制作用,最强抑制率达84.54%。
译  名:
Extraction and Purification and Activity Analysis of Antitumor-active Components from Cordyceps gunnii (Berk.) Berk
作  者:
ZHU Zhen-yuan1,CHEN Xi1,ZHOU Jia-ping1,LIU An-jun1,ZHANG Ya-jie1,ZHANG Yong-min2 (1.College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China ; 2.Universit é Pierre et Marie Curie-Paris 6, Laboratoire de Chimie Organique (UMR CNRS 7611), Paris 75005 , France)
关键词:
Cordyceps gunnii (Berk.) Berk;extraction;isolation;anti-tumor activity
摘  要:
In the present study, 30 g of Cordyceps gunni (Berk) Berk mycelia were extracted with 200 ml of methanol, and then the obtained extract was extracted the mixed 100 ml of methanol, 100 ml of deionized water and 100 ml of n-hexane and the methanol phase was collected, finally the methanol phase was extracted with 100 ml of ethyl acetate and the ethyl acetate phase was collected, concentrated through rotary evaporation, and dried for further studies, such as purification by silica thin-layer chromatography and column chromatography with diethyl ethern-hexane-methanol (5:5:1,V/V), structural analysis of by infrared (IR) spectrometry and nuclear magnetic resonance (NMR) and anti-proliferation effects against MCF-7 and HL-7702 cells. The results showed that after the sequential solvent extraction with ethanol, n-hexane and ethyl acetate, 0.6914 g of final extract is obtained and the yield is 2.06%. The final extract comprises three fractions, namely FB1, FB2 and FB3. The fraction FB3 is proved to be a sterol compound by IR and 1H-NMR, and its has strong inhibitory effects against proliferation of MCF7 and HL-7702 cells with the maximum inhibitory rates of 49.78% at 12.5μg/ml and 84.54% at 50.0 μg/ml, respectively.

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