Indian Journal of Science and Technology
Year: 2011, Volume: 4, Issue: 5, Pages: 530-533
Rupeshkumar Ghagi1 , Surekha K. Satpute2 , Balu A. Chopade2 and Arun G. Banpurkar1*
1 Center for Advanced Studies in Materials Science and Condensed Matter Physics, Dept. of Physics;
2 Dept. of Microbiology, Institute of Bioinformatics and Biotechnology, University of Pune, Pune -411 007, India
Functional properties such as critical micellar concentration, emulsification and hemolytic activity of raw ritha (Sapindus mukorossi) aqueous solution have been investigated. Commercially available ritha fruits were soaked overnight to prepare concentrated stock solution. Critical micellar concentration was found to be 0.017 gm/cc (1.7 wt %) at which the surface tension of aqueous solution remained constant to minimum value of 38 mN/m. Emulsification activity for water-kerosene and various plant oils was found to be excellent in comparison with synthetic surfactant like sodium dodecyl sulfate (SDS). These functional properties are comparable to the saponin composite, which is chemically extracted from ritha hence crude ritha could be used as an economical bio-surfactant.
Keywords: Biosurfactant,Sapindus mukorossi, ritha, saponin, sopanut, plant.
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