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Influence of pH and C/N Ratio on Poly(Vinyl Alcohol) Biodegradation in Mixed Bacterial Culture
被引：0
|作者：
Hui Zhen Zhang
机构：
[1] Taizhou University,School of Pharmaceutical and Chemical Engineering
来源：
Journal of Polymers and the Environment
|
2009年
/
17卷
关键词：
Poly(vinyl alcohol);
Glucose;
Urea;
Molecular structure;
Biodegradation mechanism;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cultivation conditions affecting poly(vinyl alcohol) (PVA) degradation by a mixed bacterial culture of Bacillus sp. and Curtobacterium sp. were investigated. Bacterial strains used in this study were isolated from the watercourse and the sewage sludge of vinylonfibre mill by enrichments on PVA as the sole carbon source. The results showed that PVA was greatly degraded under the following conditions: 0.5% PVA as a substrate at the initial medium pH of 8 with 0.15% glucose and urea at C/U ratio 1.5:1 and 1% bacterial inoculum, at a temperature of 35 °C and a shaking speed of 110 rpm. The analysis of FTIR and 1H NMR spectra before and after biodegradation indicate fission of the PVA molecular chain during the incubation.
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页码：286 / 290
页数：4
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