Microbial degradation of poly(p-dioxanone) -: II.: Isolation of hydrolyzates-utilizing microorganisms and utilization of poly(p-dioxanone) by mixed culture

被引：31

作者：

Nishida, H

Konno, M

Tokiwa, Y

机构：

[1] Natl Inst Biosci & Human Technol, Tsukuba, Ibaraki 3058566, Japan

[2] Tokuyama Corp, Tsukuba Res Lab, Tsukuba, Ibaraki 3004247, Japan

来源：

POLYMER DEGRADATION AND STABILITY | 2000年 / 68卷 / 02期

关键词：

poly(p-dioxanone); microbial degradation; utilization; utilizing micro-organisms; mixed culture;

D O I：

10.1016/S0141-3910(00)00010-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

To achieve microbial degradation and utilization of poly(p-dioxanone) (PPDO), the degradation by mixed culture of PPDO-degrading strain and PPDO-hydrolyzates-utilizing strains was investigated. From a screening test of the utilizing strains, a total of 15 utilizing strains were isolated. It was clear that PPDO-hydrolyzates-utilizing microorganisms are widely distributed in various environments, and the PPDO-hydrolyzates were utilized easily by the utilizing microorganisms. Characterization of the utilizing strains showed that the isolates are affiliated with two phyletic clusters: genera Ralstonia and Duganella in the beta subdivision of the class Proteobacteria and genus Rhodococcus or Tsukamurella in the class Actinobacteria. These utilizing strains quickly utilized PPDO-hydrolyzates as sole carbon source. By the mixed cultures with the isolated utilizing strains and PPDO-degrading strain 3-1-a: high molecular weight PPDO was degraded and utilized successfully. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：271 / 280

页数：10

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