摘要
本文以蚕豆根尖细胞微核试验为实验手段,研究了加温、紫外线照射、加氯消毒等饮用水处理方法和维生素C对奶牛、猪和鸡等禽畜粪便中水溶性致突变物的作用。结果表明,对禽畜粪便提取液的致突变性,加温具有增强作用;紫外线和有效氯仅在大剂量时才呈现一定的降低效应,由此提出现有的常规饮用水处理法对粪源性致突变物的消除效果不佳。维生素C则对粪源性致突变物有较强的消除作用,其最小消除作用浓度为4 mg/ml。
The effects of heating, ultraviolet, chlorine and vitamin 0 treatment on the mutagenicity of bovine, porcine and chicken faeces were evaluated. Eesultg demonstrated that heating (50-100℃) enhanced mutagenicity of fecal extracts. Ultraviolet and chlorine in large doses reduced mutagenioity, and vitamin C also caused decline in mutagenicity. The minimal effective dose of Vitamin C was 4 ing/ml. In conclusion, routine drinking water treatment are insufficient for elimination of mutagenic components in fecal effluents and vitamin C has a significant antimutagenio effect.
出处
《上海医科大学学报》
CSCD
1989年第2期146-150,共5页
Journal of Fudan University(Medical Science)
