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| 假丝酵母产生物表面活性剂的研究 | |
| 引用本文： | 程永刚,王世明,周玲,徐波,郭伟.假丝酵母产生物表面活性剂的研究[J].生物加工过程,2010,8(4):12-16. |
| 作者姓名： | 程永刚 王世明 周玲 徐波 郭伟 |
| 作者单位： | 1. 南京理工大学,化工学院,生物工程系,南京,210094;太极集团西南药业股份有限公司,重庆,400038 2. 南京理工大学,化工学院,生物工程系,南京,210094 3. 太极集团西南药业股份有限公司,重庆,400038 |
| 摘 要： | 从扬子石化的废水淤泥中筛选到1株假丝酵母(Candida),其发酵上清液有较强的表面活性,可将水的表面张力从72.3mN/m降到32.5mN/m。发酵上清液经酸化、丙酮沉淀后得到浅黄色固体,经TLC、IR、GC-MS分析表明:此种物质为脂肽类物质,疏水基部分为十六碳酸和9-十八烯酸,亲水基部分含有多种氨基酸。其临界胶束质量浓度为150mg/L,可耐受120℃高温和饱和浓度盐离子(质量分数为36%的Na+),pH适应范围广(pH2～12),是一种极具应用前景的生物表面活性剂。 |
| 关 键 词： | 假丝酵母 生物表面活性剂 脂肽 |
Production of biosurfactant from paraffin by fermentation with Candia E-2 |
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| CHENG Yong-gang,WANG Shi-ming,ZHOU Ling,XU Bo,GUO Wei.Production of biosurfactant from paraffin by fermentation with Candia E-2[J].Chinese Journal of Bioprocess Engineering,2010,8(4):12-16. | |
| Authors: | CHENG Yong-gang WANG Shi-ming ZHOU Ling XU Bo GUO Wei |
| Institution: | CHENG Yong-gang1,2,WANG Shi-ming1,ZHOU Ling2,XU Bo2,GUO Wei2(1.Department of Bioengineering,School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing210094,China,2.Southwest Parmarceutical Co.,Ltd,Taiji Group,Chongqing 400038,China) |
| Abstract: | A biosurfactant producing strain was isolated from sludge of wastewater treatment factory of Yangzi Petroleum Co..The produced surfactant decreased the surface tension of water from 72.3 mN/m to 32.5 mN/m.The biosurfactant was a type of lipopetide tested by TLC,IR and GC-MS,which consisted of hydrophobic parts of hexadecanoic and 9-vaccenic acids,and a hydrophilic part of various amino acids.Its critical micelle concentration was 150 mg/L.It showed stability in pH 2 to 12,tolerance in high concentration of ... |
| Keywords: | Candida biosurfactant lipopeptide |
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