Produção de biossurfactante por Bacillus sp. em meio mínimo contendo glucose
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Data
2015
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Resumo
Bioremediation uses emulsifying substances, surfactants, to mitigate environmental
contaminations. On this study, it was carried out the isolation of 27 microorganisms
from soil samples near gas stations and from these, it was selected through
hemolytic activity one strain, Bacillus sp. BRUFG 18, as a biosurfactant producer. To
the characterization of the production of bioemulsifiers, samples containing minimum
media supplied with glucose or diesel fuel, were collected in 7 days and pH,
emulsification index, microbial growth and glucose consumption were measured. On
ENCICLOPÉDIA BIOSFERA, Centro Científico Conhecer - Goiânia, v.11 n.22; p. 2015
3085
the seventh day, pH varied somewhat, between 7,83 to 8,00, and occurred a better
growth of the Bacillus sp. BRUFG 18 in media supplied with diesel fuel. The
emulsification index varied between 72 and 75%. Our results show the potentiality to
produce biosurfactants commercially with a slight variation of pH and using a plentiful
and with a lower cost carbon source, as glucose, from a bacterial isolate.
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Palavras-chave
Bacillus, Biorremediação, Biossurfactantes, Glucose, Índice de emulsificação, Óleo diesel, Bioremediation, Biosurfactants, Diesel fuel, Glucose, Emulsification index
Citação
MORAIS, Kátia Andréa Domingos de; SOARES, Renan de Souza; ARAÚJO, Marcus Vinícius Forzani; OLIVEIRA, Bruno Francesco Rodrigues de; VIEIRA, José Daniel Gonçalves. Produção de biossurfactante por Bacillus sp. em meio mínimo contendo glucose. Enciclopédia Biosfera, Goiânia, v. 11, n. 22, p. 3084-3094, 2015.