Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/12842
Tipo: Artigo
Título: Spray drying as a strategy for biosurfactant recovery, concentration and storage
Autor(es): Barcelos, Gisely S
Dias, Lívia C
Fernandes, Péricles L
Fernandes, Rita de Cássi R
Borges, Arnaldo C
Kalks, Karlos HM
Tótola, Marcos R
Abstract: The objective of this study was to analyze the use of Spray Drying for concentration and preservation of biosurfactants produced by Bacillus subtilis LBBMA RI4914 isolated from a heavy oil reservoir. Kaolinite and maltodextrin 10DE or 20DE were tested as drying adjuvants. Surface activity of the biosurfactant was analyzed by preparing dilution x surface activity curves of crude biosurfactant, crude biosurfactant plus adjuvants and of the dried products, after their reconstitution in water. The shelf life of the dried products was also evaluated. Spray drying was effective in the recovery and concentration of biosurfactant, while keeping its surface activity. Drying adjuvants were required to obtain a solid product with the desired characteristics. These compounds did not interfere with tensoactive properties of the biosurfactant molecules. The dehydrated product maintained its surfactant properties during storage at room temperature during the evaluation period (120 days), with no detectable loss of activity.
Palavras-chave: Biosurfactant
Spray drying
Maltodextrin
Clay
Environmental biotechnology
Surfactin
Editor: SpringerPlus
Tipo de Acesso: Open Access
URI: https://doi.org/10.1186/2193-1801-3-49
http://www.locus.ufv.br/handle/123456789/12842
Data do documento: 24-Jan-2014
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