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dc.contributor.authorPalmieri, M. C.-
dc.contributor.authorGreenhalf, W.-
dc.contributor.authorLaluce, Cecília-
dc.identifier.citationBiotechnology and Bioengineering. New York: John Wiley & Sons Inc., v. 50, n. 3, p. 248-256, 1996.-
dc.description.abstractA fast flotation assay was used to select new floating yeast strains. The flotation ability did not seem to be directly correlated to total extracellular protein concentration of the culture. However, the hydrophobicity of the cell was definitely correlated to the flotation capacity. The Saccharomyces strains (FLT strains) were highly hydrophobic and showed an excellent flotation performance in batch cultures without additives (flotation agents) and with no need for a special flotation chamber or flotation column. A stable and well-organized structure was evident in the dried foam as shown by scanning electron microscopy which revealed its unique structure showing mummified cells (dehydrated) attached to each other. The attachment among the cells and the high protein concentration of the foams indicated that proteins might be involved in the foam formation. The floating strains (strains FLT) which were not flocculent and showed no tendency to aggregate, were capable of growing and producing ethanol in a synthetic medium containing high glucose concentration as a carbon source. The phenomenon responsible for flotation seems to be quite different from the flocculation phenomenon. (C) 1996 John Wiley & Sons, Inc.en
dc.sourceWeb of Science-
dc.subjectbatch culturept
dc.titleEfficient flotation of yeast cells grown in batch cultureen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUNESP,DEPT BIOQUIM,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL-
dc.description.affiliationUnespUNESP,DEPT BIOQUIM,INST QUIM,BR-14800900 ARARAQUARA,SP,BRAZIL-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofBiotechnology and Bioengineering-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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