%0 Journal Article
%T Isolation and Characteristics of Biosurfactant-producing Microorganism<br>一株表面活性剂产生菌的筛选及其特性研究
%A JIA Yan
%A YIN Hua
%A PENG Hui
%A YE Jin-Shao
%A QIN Hua-Ming
%A ZHANG Na
%A QIANG Jing
%A <br>贾燕
%A 尹华
%A 彭辉
%A 叶锦韶
%A 秦华明
%A 张娜
%A 强婧
%J 微生物学通报
%D 2007
%I 
%X A biosurfactant-producing strain(S_6)was isolated from oil-containing wastewater in oxidation ditch and identified as Pseudomonas aeruginosa based on physiological and biochemical experiments and 16S rDNA sequence analysis.Infrared spectrum analysis revealed that S_6 produced glucolipid in the process of metabolism.It was observed that S_6 decreased the surface tension of water from 72 mN/m to 33.9 mN/m with the critical micelle concentration(CMC)of 50mg/L.The measurement of oil displacement and surface tension demonstrated that the fermented liquid had stable surface activity at varying range of salinity,pH,amount of dissolved oxygen.The optimal culture condition was obtained through orthogonal experiment:glucose 10g/L,urea 5g/L,KH_2PO_4 1g/L,liquor of microelement 2mL,pH 8.0,water 1000mL;and the biosurfactant production under optimal culture condition was 0.173g/L.
%K Biosurfactant
%K Petroleum degradation
%K Characteristics
%K Bioremediation<br>生物表面活性剂
%K 石油烃降解
%K 特性
%K 生物修复
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=78024727B5F4EF6AA9CA8E605B5FC464&aid=DE31BE97FBBE2D246629F0A382974412&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=B31275AF3241DB2D&sid=63025EFC6CC49145&eid=A50445FB05D4B1A0&journal_id=0253-2654&journal_name=微生物学通报&referenced_num=1&reference_num=11