食品科学 ›› 2008, Vol. 29 ›› Issue (7): 416-419.

• 营养卫生 • 上一篇    下一篇

羧甲基魔芋葡甘露聚糖对L929细胞体外毒性的研究

吴海燕, 陈颖   

  1. 南通农业职业技术学院; 南通市通州食品药品监督管理局 江苏南通226007; 江苏南通226500
  • 出版日期:2008-07-15 发布日期:2011-07-28

Study on Cytotoxicity of Carboxymethyl Glucomannan to L929 Mouse Fibroblasts in vitro

 WU  Hai-Yan, CHEN  Ying   

  1. 1.College of Nantong Agricultural Vocational Technology, Nantong 226007, China; 2.Nantong City Tongzhou Food and Drug Administration,Nantong 226500, China
  • Online:2008-07-15 Published:2011-07-28

摘要: 本实验选用L929小鼠成纤维细胞为靶细胞,用含不同浓度、不同取代度的羧甲基魔芋多糖的培养液,通过体外细胞培养法进行细胞毒性检测,于24h后测其吸光度,计算细胞的相对增殖率,用6级毒性分类法评价羧甲基葡甘露聚糖的细胞毒性。结果表明,羧甲基葡甘露聚糖各实验组的细胞增殖率(RGR)均在75%以上,而且与阳性对照组有统计学差异(p<0.01),与阴性对照组没有统计学差异(p>0.05),细胞毒性为1级,无明显的细胞毒性;羧甲基葡甘露聚糖的浓度对L929细胞活性的影响显著。

关键词: MTT法, 羧甲基魔芋葡甘露聚糖, 细胞毒性

Abstract: The in vitro cytotoxicities of different degrees of substitution and different concentrations of carboxymethyl konjac glucomannan (CMKGM) were tested by MTT assay. In this study, L929 mouse fibroblasts were used as the target cells. The OD values of cultured cells were measured on the first day. The cell relative growth rates of each group were calculated. The cytotoxicitie grades of each group were determined according to six-grade. Results showed that the cytotoxicity gradation of each group is at the first grade. The tested groups have no significant difference to the negative group (p>0.05), while have significant difference to the positive group (p<0.01). The concentration of carboxymethyl konjac glucomannan has significant influence on cell activity.

Key words: MTT-assay, carboxymethyl konjac glucomannan, cytotoxicity