New bioemulsifiers produced by Candida lipolytica using D-glucose and babassu oil as carbon sources
Braz. j. microbiol
;
34(2): 120-123, Apr.-Jun. 2003. graf
Artigo
em Inglês
| LILACS
| ID: lil-355159
RESUMO
Candida lipolytica IA 1055 produced extracellular biosurfactants with emulsification activity by fermentation using babassu oil and D-glucose as carbon sources. Natural seawater diluted at 50 percent supplemented with urea, ammonium sulfate, and phosphate was used as economic basal medium. The best results were achieved with the YSW-B2 medium, which contained urea, ammonium sulfate, and babassu oil and with YSW-B3 medium, which contained urea, ammonium sulfate, phosphate, and babassu oil, kept under fed batch fermentation for 60 hours with 5 percent of babassu oil. For the two media, the maximum specific growth rates were 0.02 h-1 and 0.04 h-1; the generation times were 34.6 h-1 and 17.3 h-1, and the emulsification activities were 0.666 and 0.158 units, respectively. The molecules of these new bioemulsifiers were contituted of carbohydrates, proteins and lipids.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Óleos de Plantas
/
Candida
/
Óleo de Palmeira
/
Emulsificantes
Idioma:
Inglês
Revista:
Braz. j. microbiol
Assunto da revista:
Microbiologia
Ano de publicação:
2003
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Ministério da Agricultura Pecuária e do Abastecimento/BR
/
Universidade Federal de Pernambuco/BR
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