Jarerat Amnat, Tokiwa Yutaka, Tanaka Hideo
C.P.R. Co., Ltd., 4-102, Higashinobusue, Himeji, Hyogo 670-0965, Japan.
Biotechnol Lett. 2003 Dec;25(23):2035-8. doi: 10.1023/b:bile.0000004398.38799.29.
A new poly(L-lactide) (PLA)-degrading actinomycete, Kibdelosporangium aridum, degraded more than 97 mg out of 100 mg added high molecular weight PLA film (Mn: 3.4 x 10(5)) within 14 d in liquid culture. L-Lactic acid, the monomeric degradation product of PLA, was totally assimilated by the strain. In solid culture, many distinct grooves formed by the morphology of filamentous microorganisms on the surface of a PLA film were observed by scanning electron microscopy.
一种新的可降解聚（L-丙交酯）（PLA）的放线菌——干旱小孢囊菌，在液体培养中于14天内降解了添加的100毫克高分子量PLA薄膜（Mn：3.4×10⁵）中的97毫克以上。PLA的单体降解产物L-乳酸被该菌株完全同化。在固体培养中，通过扫描电子显微镜观察到丝状微生物在PLA薄膜表面形成了许多明显的凹槽。
