Effects of monorhamnolipid and Tween 80 on the degradation of phenol by Candida tropicalis
Effects of monorhamnolipid and Tween 80 on the degradation of phenol by Candida tropicalis
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DOI：
10.1016/j.procbio.2010.01.014
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发表时间：
2010-05-01
影响因子：
4.4
通讯作者：
Yuan, Xing-Zhong
中科院分区：
文献类型：
--
作者：
Liu, Zhi-Feng;Zeng, Guang-Ming;Yuan, Xing-Zhong
研究了生物表面活性剂单鼠李糖脂（monoRL）和化学表面活性剂吐温80对热带假丝酵母CICC 1463降解苯酚的影响。这两种表面活性剂在发酵开始时阻碍了细胞浓度的衰减，并在此后增强了细胞生长。500 mg/L苯酚的降解率在30 h内由对照的86.9%提高到99.0%以上。monoRL也能被热带假丝酵母降解。这些结果表明，表面活性剂可以降低苯酚对酵母的毒性，促进细胞生长，提高苯酚的去除率。由于生物降解性，monoRL优于吐温80。(C)2010爱思唯尔有限公司版权所有。
The effects of the biosurfactant monorhamnolipid (monoRL) and the chemical surfactant Tween 80 on the degradation of phenol by Candida tropicalis CICC 1463 were studied. Both surfactants impeded the decay in cell concentrations at the beginning of the fermentation and enhanced the cell growth thereafter. They also increased the degradation efficiencies of 500 mg/L phenol from 86.9% in control to above 99.0% for all test concentrations within 30 h. The monoRL could also be degraded by the C tropicalis. These results indicate that the surfactants could diminish the toxicity of phenol to the yeast, increase cell growth and improve phenol removal. The monoRL is better than Tween 80 because of biodegradability. (C) 2010 Elsevier Ltd. All rights reserved.