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Position: Home > Articles > icrobial Transformation of Ethanol-soluble Constituents from Gynostemma pentaphyllum FOOD SCIENCE 2013,34 (21) 149-153

保加利亚乳杆菌对绞股蓝成分的转化

作  者:
朴香兰;刘慧敏;乌日图
单  位:
中央民族大学中国少数民族传统医学研究院
关键词:
绞股蓝;保加利亚乳杆菌;微生物转化
摘  要:
目的:比较绞股蓝(Gynostemma pentaphyllum)的乙醇提取物经微生物转化前后成分的变化。方法:采用德氏乳杆菌保加利亚亚种(Lactobacillus delbrueckiisubsp.bulgaricus)作为实验的主要菌种,在43℃条件下,液体发酵6d,对转化前后绞股蓝乙醇提取物进行非小细胞肺癌A549细胞的抑制活性检测,利用高效液相色谱方法,对转化前后成分的变化进行分析,通过LCMS-IT-TOF鉴定转化前的2个主要成分及转化后的4个主要成分。结果:保加利亚乳杆菌对绞股蓝提取物的微生物转化产物比原绞股蓝提取物具有更强的抑制非小细胞肺癌A549细胞增殖作用。实验显示保加利亚乳杆菌能够使绞股蓝中的成分发生转化,主要转化物被鉴定为Gypenoside L、Gypenoside LI、达木林A及达木林B,可为天然产物中有效成分的转化提供一个新的研究思路。
译  名:
icrobial Transformation of Ethanol-soluble Constituents from Gynostemma pentaphyllum
作  者:
PIAO Xiang-lan;LIU Hui-min;Wuritu;Institute of Chinese Minority Traditional Medicine,Minzu University of China;
关键词:
Gynostemma pentaphyllum;;Lactobacillus bulgaricus;;microbial transformation
摘  要:
Objective: To compare the components of the ethanol extract from Gynostemma pentaphyllum before and after microbial transformation.Methods: The ethanol extract of G.pentaphyllum was fermented in liquid for 6 d using Bulgarian lactobacillus at 43 ℃.The anticytotoxic activity before and after microbial transformation were tested using non-small cell lung cancer A549 cells.The chemical composition was identified by LCMS-ITTOF.Results: The ethanol extract of G.pentaphyllum transformed by Lactobacillus delbrueckii subsp.bulgaricus showed more potent cytotoxic activity against A549 cells than that of the original extract.Some components were transformed by microbial transformation and the major transformed components were identified as gypenoside L,gypenoside LI,damulin A and damulin B.Conclusion: More bioactive components of natural products may be obtained by microbial transformation.

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