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马齿苋多糖的超声提取及活性试验研究
引用本文:田光辉,刘存芳,赖普辉. 马齿苋多糖的超声提取及活性试验研究[J]. 食品研究与开发, 2007, 28(2): 7-10
作者姓名:田光辉  刘存芳  赖普辉
作者单位:陕西理工学院化学学院,陕西,汉中,723000
基金项目:教育部科学技术研究项目;陕西省教育厅资助项目
摘    要:利用超声法提取马齿苋多糖,多糖的提取率可高达10.13%,对其粗多糖用DEAE-纤维素柱层析分离,得到一种分子量为57kD的马齿苋多糖,并对多糖做了抗菌和抗肿瘤活性试验。活性试验结果表明。马齿苋多糖对试验菌株有微弱的抑制和灭活作用,却有显著的抗肿瘤活性。

关 键 词:马齿苋  多糖  超声提取  抗肿瘤活性  抗菌活性
修稿时间:2006-09-27

STURDY ON ULTRASONIC EXTRACTION OF POLYSACCHARIDES FROM PORTULACA OLERACEA AND ITS BIOLOGIC ACTIVITY
TIAN Guang-hui,LIU Cun-fang,LAI Pu-hui. STURDY ON ULTRASONIC EXTRACTION OF POLYSACCHARIDES FROM PORTULACA OLERACEA AND ITS BIOLOGIC ACTIVITY[J]. Food Research and Developent, 2007, 28(2): 7-10
Authors:TIAN Guang-hui  LIU Cun-fang  LAI Pu-hui
Affiliation:School of Chemistry, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
Abstract:The polysaccharide from Portulaca oleracea is obtained by ultrasonic extraction, its large yield can reach to 10.13 %, and one polysaccharide that the molecular weight is 57 kD is refined by DEAE column chromatography, the polysaccharide from Portulaca oleracea is investigated about antimicrobial activities and antitumor activities. The result of the antimicrobial activities of the polysaccharide from Portulaca oleracea is feeble to inhibit the growth of testing bacterium and sterilize them, but its anti-tumor activity has remarkable effect.
Keywords:Portulaca oleracea L   polysaccharide   ultrasonic extraction   anti-tumor activity   antimicrobial activity
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