Journal
QUIMICA NOVA
Volume 32, Issue 8, Pages 2104-2108Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0100-40422009000800022
Keywords
bioprocess; emulsifying activity; surface tension
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BACTERIA BIOSURFACTANTS PRODUCTION KINETIC EVALUATION. Biosurfactants present advantages in relation to the synthetic surfactants, as the biodegradability and low toxicity, and can be applied in the food industry, in pharmaceutical products, cosmetics and in the petroleum recovery. This paper aimed at selecting bacteria for biosurfactant production, evaluating the surface tension and the emulsifying activity and studying the fermentation process kinetics. The pure culture of Corynebacterium aquaticum showed capacity to promote emulsions formation and presented the smallest surface tension (28.8 mN m(-1)), and, in general, larger kinetic parameters, being selected as biosurfactant producer.
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