Sahoo S, Datta S, Biswas D, Banik Choudhury R
Department of Chemical Technology, University of Calcutta, Kolkata, India.
J Oleo Sci. 2010;59(11):601-5. doi: 10.5650/jos.59.601.
The potential production of biosurfactant was investigated with a strain of Pseudomonas aeruginosa OCD(1), which was isolated from air in our laboratory. The degradation of different hydrocarbons was studied with this microorganism. The values of surface tension and emulsification index of culture broth were very promising when n-octadecane was used as substrate. Characterization of biosurfactant revealed that the biosurfactant was rhamnolipid in nature. The surface tension of water was reduced to 31.5 mN/m from 72 mN/m with the critical micelle concentration of 35 mg/L. A low rhamnolipid concentration (< 5 mg/L) had a strong effect on reduction of surface tension.
用从我们实验室空气中分离得到的一株铜绿假单胞菌OCD(1)研究了生物表面活性剂的潜在产量。用这种微生物研究了不同碳氢化合物的降解情况。当以正十八烷为底物时，培养液的表面张力值和乳化指数非常可观。生物表面活性剂的表征显示，该生物表面活性剂本质上是鼠李糖脂。水的表面张力从72 mN/m降至31.5 mN/m，临界胶束浓度为35 mg/L。低浓度的鼠李糖脂（<5 mg/L）对降低表面张力有很强的作用。
Zotero 插件