ACCUMULATION OF A POLY(HYDROXYALKANOATE) COPOLYMER CONTAINING PRIMARILY 3-HYDROXYVALERATE FROM SIMPLE CARBOHYDRATE SUBSTRATES BY RHODOCOCCUS SP NCIMB 40126

被引：166

作者：

HAYWOOD, GW

ANDERSON, AJ

WILLIAMS, DR

DAWES, EA

EWING, DF

机构：

[1] UNIV HULL,DEPT APPL BIOL,HULL HU6 7RX,N HUMBERSIDE,ENGLAND

[2] UNIV HULL,DEPT CHEM,HULL HU6 7RX,N HUMBERSIDE,ENGLAND

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 1991年 / 13卷 / 02期

关键词：

RHODOCOCCUS; POLY(HYDROXYALKANOATES); COPOLYMERS;

D O I：

10.1016/0141-8130(91)90053-W

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

A number of taxonomically-related bacteria have been identified which accumulate poly(hydroxyalkanoate) (PHA) copolymers containing primarily 3-hydroxyvalerate (3HV) monomer units from a range of unrelated single carbon sources. One of these, Rhodococcus sp. NCIMB 40126, was further investigated and shown to produce a copolymer containing 75 mol% 3HV and 25 mol% 3-hydroxybutyrate (3HB) from glucose as sole carbon source. Polyesters containing both 3HV and 3HB monomer units, together with 4-hydroxybutyrate (4HB), 5-hydroxyvalerate (5HV) or 3-hydroxyhexanoate (3HHx), were also produced by this organism from certain accumulation substrates. With valeric acid as substrate, almost pure (99 mol% 3HV) poly (3-hydroxyvalerate) was produced. N.m.r. analysis confirmed the composition of these polyesters. The thermal properties and molecular weight of the copolymer produced from glucose were comparable to those of PHB produced by Alcaligenes eutrophus.

引用

页码：83 / 88

页数：6

共 21 条

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