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首页> 外文期刊>Biocontrol Science >Biodegradation of Poly ( epsilon -Caprolactone) Film in the Presence of Lysinibacillus sp. 70038 and Characterization of the Degraded Film
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Biodegradation of Poly ( epsilon -Caprolactone) Film in the Presence of Lysinibacillus sp. 70038 and Characterization of the Degraded Film

机译：溶菌中存在的聚（ε-己内酯）薄膜的生物降解。 70038和降解膜的表征

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摘要

Poly ( epsilon -caprolactone) (PCL) is one of the commercial biodegradable plastics and biocompatible polyesters that can be assimilated by microorganisms. Lysinibacillus sp. 70038 which degrades PCL film was screened from stock cultures by cultivation using an enrichment culture medium containing PCL film with the weight-averaged molecular weight (Mw) of 160,000 as a sole carbon source. Lysinibacillus sp. 70038 degraded 9.0% of PCL at 30 degree C, 100 rpm, after 30 d. Scanning electron mlcrophotograph (SEM) analysis of the degraded PCL film showed nearly 4 mu m of surface erosion, and the molecular weight distribution of the surface area of PCL film became broad and a low molecular weight polymer (Mn=6,900) was confirmed by gel permeation chromatography (GPC) after cultivation.
机译：聚（ε-己内酯）（PCL）是可以被微生物吸收的商业可生物降解塑料和生物相容性聚酯之一。 lysinibacillus sp。通过使用含有重均分子量（Mw）为160,000的PCL膜作为唯一碳源的富集培养基，从培养物中筛选出降解PCL膜的70038。 lysinibacillus sp。 30天后，在30摄氏度，100 rpm下，70038降解了9.0％的PCL。降解的PCL膜的扫描电子显微照片（SEM）分析显示表面侵蚀接近4微米，PCL膜表面积的分子量分布变宽，并通过凝胶证实了低分子量聚合物（Mn = 6,900）培养后进行渗透色谱（GPC）。

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