PBS基共聚物对蚯蚓体内蛋白质含量的影响研究  

Effect of PBS-Based Copolymer on Protein Content of Earthworm

作　　者：张敏[1] 邢永雷[1] 李成涛[1] 苏康宇[1] 张坤[1] 宋吉青[2] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021 [2]中国农业科学院农业部农业环境与气候变化重点开放实验室,北京100081

出　　处：《环境科学与技术》2012年第10期42-45,共4页Environmental Science & Technology

基　　金：陕西省教育厅产业化育研项目(2010JC01);咸阳市科技计划项目(2010K05-02)

摘　　要：采用人工土壤法,以蚯蚓体内蛋白质含量的变化为指标,研究了不同分子量可生物降解材料聚丁二酸丁二醇酯/聚己内酯(PBS-co-PCL)共聚物对蚯蚓的急性毒性。研究结果表明:数均分子量为8.0×103和1.6×104实验中,蚯蚓蛋白质均表现出随PBS-co-PCL含量的增大而减小的趋势,但最终蛋白质含量与空白实验基本一致;数均分子量为2.8×104的PBS-co-PCL对蚯蚓的影响比较小,不随共聚物含量的增加而变化,与空白实验基本保持相同水平。以上结果表明:不同分子量PBS-co-PCL对蚯蚓体内蛋白质含量的影响不大,对蚯蚓是安全的。Laboratory tests were conducted for effect of acute toxicity of degradable PBS-co-PCL, i.e. poly （butylene succinate）-co-poly（caprolactone）, with different molecular weights on protein content of earthworm. Influence of the number average molecular weight of PBS-co-PCL was studied, e.g. 8.0 ×10^3 and 1.6 ×10^4, were tested respectively. The result indicated that protein content of earthworm tended to decrease with the increase of PBS-co-PCL content; and when the number average molecular weight went up to 2.8 ×10^4, changes could barely be seen and protein content of earthworm remained the same as the control group. Overall, it could be concluded that PBS-co-PCL with different molecular weights had little influence on earthworm.

关 键 词：PBS-co-PCL 急性毒性 考马斯亮蓝 蛋白质含量 

分 类 号：X171.5[环境科学与工程—环境科学]