中国塑料2017，Vol.31Issue(3)：94-99,6.DOI:10.19491/j.issn.1001-9278.2017.03.017
降解菌株的筛选及其对聚丁二酸丁二醇酯薄膜的降解
Screening of Degrading Strain and Its Degradation on Poly (butylenes succinate) Films
摘要
Abstract
A strain,LSU1601,with a degradation activity for poly(butylenes succinate) (PBS) was isolated from activated sludge.The strain was identified as Acidovorax delafiedii by thallus morphology analysis,colonies characterization,physiological reaction,biochemical reaction and 16S rDNA analysis.This strain exhibited a high production capability for PBS-degrading enzymes when the cultivation temperature was set to 30 ℃,the initial acidity was set to pH 6.8,the cultivation time was set to 48 h,and the shaking speed was set to 120 r/min.The percentage of biodegradation reached 48.2 ％ when the cultivatable time was 84 h,the cultivatable temperature was 30 ℃,and the initial acidity of culture medium was pH 6.8.The electron microscopic observation of the degraded PBS films showed that the film surfaces presented distinct erosion,and the erosion became more significant with an increase of degradation time.The degradation products of PBS films were assayed as 1,4-butylene,1,4-succinate and butylene-succinate,but no other oligomers were found.关键词
聚丁二酸丁二醇酯/降解/德氏食酸菌Key words
poly(butylenes succinate)/degradation/Acidovorax delafiedii分类
化学化工引用本文复制引用
丁子洋,于博文,王硕,齐佳慧,王晓玲,王战勇..降解菌株的筛选及其对聚丁二酸丁二醇酯薄膜的降解[J].中国塑料,2017,31(3):94-99,6.基金项目
国家自然科学基金项目(31570097) （31570097）
