Hayase Nobuki, Yano Hidetoshi, Kudoh Emi, Tsutsumi Chikara, Ushio Kazutoshi, Miyahara Yasushi, Tanaka Suminori, Nakagawa Katsuhiko
Department of Applied Chemistry and Biotechnology, Niihama National College of Technology, Niihama, Ehime 792-8580, Japan.
J Biosci Bioeng. 2004;97(2):131-3. doi: 10.1016/S1389-1723(04)70180-2.
Poly(butylene succinate-co-butylene adipate) (PBSA)-degrading bacterium, strain 1-A, was isolated from soil. Strain 1-A was identified as Bacillus pumilus on the basis of its physiological properties and partial 16S rRNA gene sequence. Strain 1-A also degraded poly(butylene succinate) (PBS) and poly(epsilon-caprolactone). On the other hand, poly(butylene adipate terephthalate) and poly(lactic acid) were minimally degraded by strain 1-A. The NMR spectra of degradation products from PBSA indicated that the adipate units were more rapidly degraded than 1,4-butanediol and succinate units. This seems to be one of the reasons why strain 1-A degraded PBSA faster than PBS.
从土壤中分离出了一株聚（丁二酸丁二醇酯 - 共 - 己二酸丁二醇酯）（PBSA）降解菌，菌株1 - A。根据其生理特性和部分16S rRNA基因序列，菌株1 - A被鉴定为短小芽孢杆菌。菌株1 - A还能降解聚（丁二酸丁二醇酯）（PBS）和聚（ε - 己内酯）。另一方面，聚（对苯二甲酸丁二醇酯）和聚（乳酸）被菌株1 - A的降解程度极小。PBSA降解产物的核磁共振谱表明，己二酸酯单元比1,4 - 丁二醇和琥珀酸酯单元降解得更快。这似乎是菌株1 - A降解PBSA比PBS更快的原因之一。
