降解聚丁二酸丁二醇酯(PBS)微生物菌种的筛选及降解性的研究  

The research of degradation properties of screened microorganisms to PBS

作　　者：王蕾[1] 张敏[1] 李成涛[1] 王旭愿[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环境与可持续发展研究所,北京100081

出　　处：《陕西科技大学学报（自然科学版）》2012年第4期38-41,共4页Journal of Shaanxi University of Science & Technology

基　　金：科技部"863"计划项目子课题(2011AA100503);陕西省教育厅产业化培育项目(2010JC01);陕西科技大学科研创新团队项目(TD10-01);陕西科技大学自然科学基金项目(ZX11-17)

摘　　要：为了获取土壤中能降解聚丁二酸丁二醇酯(PBS)的微生物菌种,并研究其对PBS的降解效果,以陕西花园土壤为介质,对其中的细菌、真菌和放线菌分别进行了驯化和筛选.选取活性强的几种菌种对PBS进行了生物降解实验,并且研究了降解前后PBS的表面形态、质量损失和力学性能的变化.研究结果表明:在陕西花园土壤中降解PBS最快的菌为真菌,经上述菌种侵蚀后的PBS晶体均受到一定程度的破坏,力学性能随降解时间的延长逐步降低.The bacteria,fungi,and actinomycete in Shaanxi garden soil were domesticated and screened to obtain the microorganism to degrade PBS.Several high effective kinds of bacteria were picked to degrade PBS,then the mass loss,surface morphology and mechanical properties of nature and degraded PBS were studied,the results showed that,fungi could effectively degrade PBS and the PBS crystals were damage by the erosion of these bacteria,the elongation at break reduced gradually with the degradation time.

关 键 词：PBS 生物降解 微生物菌种 筛选 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]