Isolation of a microorganism capable of degrading poly-(L-lactide)

被引：51

作者：

Ikura, Y ^{[1
]}

Kudo, T ^{[1
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

来源：

JOURNAL OF GENERAL AND APPLIED MICROBIOLOGY | 1999年 / 45卷 / 05期

关键词：

amycolatopsis; poly-(L-lactide) degradation; poly-(L-lactide)-degrading bacteria; poly-(L-lactide)-degrading conditions;

D O I：

10.2323/jgam.45.247

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The isolation of poly-(L-lactide) (PLA)-degrading microorganisms was investigated. A PLA-degrading actinomycete, strain No. 3118, was isolated and tentatively identified as a member of the genus Amycolatopsis. The optimum conditions for degradation of PLA were 43 degrees C at about pH 7 in a mineral salt medium with a low concentration of organic nutrients (0.002% yeast extract). The original shape of PLA film (Mw = 2.3 x 10(5) after sterilization, 20 mu m thick) disappeared within 2 weeks. Lactic acid was detected after the film was incubated with culture supernatant.

引用

页码：247 / 251

页数：5

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