Bacteria biosurfactants production kinetic evaluation

Quimica nova

Martins, Roberta Guimarães¹  Pinto, Marta Heidtmann¹  Costa, Jorge Alberto Vieira¹ 

[1] Universidade Federal do Rio Grande, Rio Grande, Brasil

关键词: bioprocess;    emulsifying activity;    surface tension.;   

DOI  :  10.1590/S0100-40422009000800022

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

CC BY