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Applied Biochemistry and Biotechnology

, Volume 106, Issue 1–3, pp 295–301 | Cite as

Cassava flour wastewater as a substrate for biosurfactant production

  • Marcia NitschkeEmail author
  • Glaucia M. Pastore
Article

Abstract

Five cassava flour wastewater (manipueira) preparations were tested as culture media for biosurfactant production by a wild-type Bacillus sp. isolate. No-solids (F), no-solids diluted (F/2), natural (I), natural diluted (I/2), and decanted (IPS) were the tested manipueira media. The microorganism was able to grow and to produce biosurfactant on all manipueira preparations. The media whose solids were removed (F and F/2) showed better results than preparations with the presence of solids (I, I/2, and IPS). No-solids medium (F) showed a surface tension of 26,59 mN/m and reciprocal of critical micelle concentration of over 100 and was selected as a potential substrate for biosurfactant production.

Index Entries

Biosurfactant Bacillus sp. cassava flour wastewater 

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Copyright information

© Humana Press Inc. 2003

Authors and Affiliations

  1. 1.Laboratório de Bioquímica, Departanento de Ciéncia de AlinentosFaculdade de Engenharia de Alimentos, NICAMP, Rua Monteiro, LobatoCampinas, SPBrazil

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