Properties of a biosurfactant produced by Bacillus pumilus using vinasse and waste frying oil as alternative carbon sources


Autoria(s): Oliveira, Juliana Guerra de; Garcia-Cruz, Crispin Humberto
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/02/2013

Resumo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Biosurfactants are chemical molecules produced by the microorganisms with potential for application in various industrial and environmental sectors. The production parameters and the physicochemical properties of a biosurfactant synthesized by Bacillus pumilus using different concentrations of vinasse and waste frying oil as alternative carbon sources were analyzed. The microorganism was able to grow and produce a biosurfactant using both the residues. The surface tension was reduced up to 45 mN/m and the maximum production of crude biosurfactant was 27.7 and 5.7 g/l for vinasse and waste frying oil, respectively, in concentration of 5%. The critical micelle concentration (CMC) results of 1.5 and 0.2 g/l showed the efficiency of the biosurfactant produced on both the substrates. The results showed that the alternative substrates could be used for the production of an efficient biosurfactant by B. pumilus. These properties have potential for industrial and environmental applications.

Formato

155-160

Identificador

http://dx.doi.org/10.1590/S1516-89132013000100020

Brazilian Archives of Biology and Technology. Brazilian Archives of Biology and Technology, v. 56, n. 1, p. 155-160, 2013.

1516-8913

http://hdl.handle.net/11449/21836

10.1590/S1516-89132013000100020

S1516-89132013000100020

WOS:000317527700020

S1516-89132013000100020.pdf

Idioma(s)

eng

Publicador

Brazilian Archives of Biology and Technology

Relação

Brazilian Archives of Biology and Technology

Direitos

openAccess

Palavras-Chave #Biosurfactants #vinasse #waste frying oil #Bacillus pumilus
Tipo

info:eu-repo/semantics/article