武汉工程大学学报2025，Vol.47Issue(5)：524-530,7.DOI:10.19843/j.cnki.CN42-1779/TQ.202404003
PBAT海洋降解菌的筛选及其降解特性
Isolation and characterization of marine bacteria capable of degrading PBAT
摘要
Abstract
This study aimed to screen and identify microbial resources in the marine environment that are capable of efficiently degrading poly(butylene adipate-co-terephthalate)(PBAT).PBAT biofilms were collected from the seas surrounding Guangdong Province,China.Three bacterial strains with potential degrading capabilities were isolated:Bacillus sp.,Psychrobacter sp.,and Priestia sp.In degradation experiments using 2216 E medium as an additional carbon source,all three strains degraded PBAT after 45 days of incubation.The Bacillus sp.strain exhibited the highest degradation efficiency(0.97±0.0)9%,whereas Psychrobacter sp.and Priestia sp.showed similar,lower rates of(0.590±0.190)%and(0.590±0.002)%,respectively.Scanning electron microscopy(SEM)revealed that all three strains formed biofilms and created grooves and erosions on the PBAT surface.Furthermore,Fourier-transform infrared spectroscopy(FTIR)detected changes in the characteristic peaks of PBAT,indicating alterations in its chemical structure due to microbial activity.These results provide fundamental data for further research and development on microbial degradation of PBAT.关键词
聚己二酸/对苯二甲酸丁二酯/降解/海洋微生物/生物可降解塑料Key words
butylene adipate-co-terephthalate/degrading/marine microorganism/biodegradable plastics分类
农业科技引用本文复制引用
金国庆,李瑞,樊昊心,葛超荣..PBAT海洋降解菌的筛选及其降解特性[J].武汉工程大学学报,2025,47(5):524-530,7.基金项目
国家自然科学基金(4207039) （4207039）
