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
Article
in English
| 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.
Full text:
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Index:
LILACS (Americas)
Main subject:
Plant Oils
/
Candida
/
Palm Oil
/
Emulsifying Agents
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2003
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Ministério da Agricultura Pecuária e do Abastecimento/BR
/
Universidade Federal de Pernambuco/BR
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