枯草芽孢杆菌对聚丙烯塑料的有效降解  

Effective Degradation of Polypropylene Plastics By Bacillus Subtilis

作　　者：唐静 彭圣娟 顾卫华[1] 白建峰[1] 赵静[1] 马倩 TANG Jing;PENG Shengjuan;GU Weihua;BAI Jianfeng;ZHAO Jing;MA Qian(School of Resource and Envi ronmental Engineering,Shanghai Second P olytechnic University,Shanghai 201209,China)

机构地区：[1]上海第二工业大学资源与环境工程学院,上海201209

出　　处：《有色金属(冶炼部分)》2025年第4期116-123,共8页Nonferrous Metals(Extractive Metallurgy)

基　　金：上海市科委地方院校能力提升计划项目(23010500500);上海市浦东新区民生科研项目(PKJ2023-C07)。

摘　　要：目前聚丙烯塑料生物降解相关研究还处在代谢菌株资源分离阶段,可研究和应用的聚丙烯塑料降解菌株严重缺乏。利用前期从土壤中筛选得到的一株枯草芽孢杆菌进行聚丙烯塑料颗粒降解,发现14 d后聚丙烯塑料表面存在明显被微生物侵蚀的痕迹。探究了聚丙烯塑料对枯草芽孢杆菌生长情况和总蛋白含量的影响,并且聚丙烯的产物对枯草芽孢杆菌出现了抑制作用,同时红外分析检测到短链烃类物质的生成,说明对聚丙烯塑料实现了断链降解。该结论为后续深入分析枯草芽孢杆菌降解聚丙烯塑料的机理、进一步升级改造全细胞降解体系、实现废弃聚丙烯塑料高效绿色降解及回收利用提供科学依据。At present,the research related to biodegradation of polypropylene plastics is still in the stage of metabolic strain resource isolation,and there is a serious lack of polypropylene plastic degradation strains that can be studied and applied.A strain of Bacillus subtilis obtained from soil screening was utilized for polypropylene plastic granule degradation in the early stage,and it was found that there were obvious traces of microbial erosion on the surface of polypropylene plastics after 14 days.The influence of polypropylene plastics on the growth of Bacillus subtilis and the content of total protein was investigated and the products of polypropylene appeared to be inhibitory to Bacillus subtilis.At the same time,the formation of short-chain hydrocarbons was detected by infrared analysis,indicating that chain-breaking degradation of polypropylene plastics has achieved.This conclusion provides a scientific basis for the subsequent in-depth analysis of the mechanism of degradation of polypropylene plastics by Bacillus subtilis,further upgrading and modification of the whole-cell degradation system,and the realization of efficient green degradation and recycling of waste polypropylene plastics.

关 键 词：聚丙烯 枯草芽孢杆菌 生物降解 

分 类 号：X53[环境科学与工程—环境工程]