Intracellular biopolymer productions using mixed microbial cultures from fermented POME

被引：30

作者：

Ujang, Salmiati Z. ^{[1
]}

Salim, M. R. ^{[1
]}

Din, M. F. Md ^{[1
]}

Ahmad, M. A. ^{[1
]}

机构：

[1] Univ Teknol Malaysia, Inst Environm & Water Resource Management IPASA, Johor Baharu 81310, Malaysia

来源：

WATER SCIENCE AND TECHNOLOGY | 2007年 / 56卷 / 08期

关键词：

biopolymers; mixed culture; oil palm waste; PHAs; recovery;

D O I：

10.2166/wst.2007.687

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study aimed to produce polyhydroxyalkanoates (PHAs) from organic wastes by mixed bacterial cultures using anaerobic-aerobic fermentation systems. Palm oil mill effluent (POME) was used as an organic source, which was cultivated in a two-step-process of acidogenesis and acid polymerization. POME was operated in a continuous flow anaerobic reactor to access volatile fatty acids (VFAs) for PHAs production. During fermentation, VFA concentration was produced in the range of 5 to 8 g/L and the COD concentration reduced up to 80% from 65 g/L. The VFA from anaerobic fermentation was then utilised for PHA production using a mixed culture in availability of aerobic bioreactor. Production of PHAs was recorded high when using a high volume of substrates because of the higher VFA concentration. Even though the maximum PHA content was observed at only 40% of the cell dried weight (CDW), their production and performance are significant in mixed microbial culture.

引用

页码：179 / 185

页数：7

共 17 条

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