Related Experiment Video
Updated: Aug 13, 2026

Production of Chemicals by Klebsiella pneumoniae Using Bamboo Hydrolysate as Feedstock
Published on: June 29, 2017
Cassava flour wastewater as a substrate for biosurfactant production
Marcia Nitschke1, Glaucia Pastore
1Laboratório de Bioquímica, Departanento de Ciéncia de Alinentos, Faculdade de Engenharia de Alimentos, UNICAMP, Rua Monteiro, Lobato, 80 Cx. Postal 6121, CEP 13083-970, Campinas, SP, Brazil. nitschke@bol.com.br
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.
Related Concept Videos
Production of Alcohol
Production of Organic Acids
Biological Treatment of Effluent and Waste Water
Biofuels

