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IJSTR >> Volume 3- Issue 3, March 2014 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Low Cost Production Of Biosurfactant From Different Substrates And Their Comparative Study With Commercially Available Chemical Surfactant.

[Full Text]

 

AUTHOR(S)

Samadhan Waghmode, Chandrashekhar Kulkarni, Sneha Shukla, Priyanka Sursawant, Chaitanya Velhal

 

KEYWORDS

Keywords: Biosurfactant, Bacillus subtilis, Emulsification, Waste Management

 

ABSTRACT

Abstract: Biosurfactants are amphiphilic compounds produced by various bacteria and fungi which reduce surface and interfacial tension. In this work, the biosurfactant produced by Bacillus subtilis strain isolated from soil samples was characterized and its properties compared with commercially available chemical surfactants. Bacillus subtiliswas used for the production of biosurfactant and its activity was tested against crude vegetable oil. The crude biosurfactant was produced using four different substrates and its emulsification activity was compared against sodium dodecyl sulphate (SDS). The results showed that the isolated bio surfactant from coconut waste showed the highest emulsification activity even more than sodium dodecyl sulphate (SDS) which is a commercial chemical surfactant. Furthermore its antimicrobial activity was checked against Staphylococcus aureus, Escherichia coli, Pseudomonas and Salmonella typhimurium. The study concludes that coconut and soyabean waste are the most ideal substrate for biosurfactant biosynthesis, which may have potential industrial applications. Keywords: Biosurfactant, Bacillus subtilis, Emulsification, Waste Management

 

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