Synthesis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from activated sludge

被引:22
作者
Hu, WF
Chua, H
Yu, PHF
机构
[1] S CHINA AGR UNIV,DEPT FOOD SCI,GUANGZHOU,PEOPLES R CHINA
[2] HONG KONG POLYTECH UNIV,DEPT APPL BIOL & CHEM TECHNOL,HONG KONG,HONG KONG
关键词
D O I
10.1023/A:1018307402891
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
Poly-3-hydroxybutyrate (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was produced using a coculture of activated sludge. When butyric acid was used as sole carbon source, PHB was produced. When valeric acid was added to the medium, PHBV was produced. The 3-hydroxyvalerate (3HV) mole fraction in the PHBV reached a maximum of 54% when valeric acid was used as sole carbon source. When the 3HV units in the co-polymer increased from 0.0 to 54.0 mol%, the melting temperature (T-m) decreased from 178 to 99 degrees C. The composition, and hence the mechanical properties, of the co-polymer produced by activated sludge can be controlled by adjusting the medium composition.
引用
收藏
页码:695 / 698
页数:4
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