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Application of the biorefinery concept to produce L-lactic acid from the soybean vinasse at laboratory and pilot scale.
MedLine Citation:
PMID:  20933391     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Lactic acid is a product that finds several applications in food, cosmetic, pharmaceutical and chemical industries. The main objective of this work was the development of a bioprocess to produce L(+)-lactic acid using soybean vinasse as substrate. Among ten strains, Lactobacillus agilis LPB 56 was selected for fermentation, due to its ability to metabolize the complex oligosaccharides. Fermentation was conducted without need for supplementary inorganic nitrogen sources or yeast extract. Kinetic and yield parameters determined at laboratory scale were 0.864 and 0.0162 for YP/S and YX/S, 0.0145 g/L h (rx), 1.32 g/L h (rs) and 1.13 g/L h (rp). The use of vinasse enriched with soybean molasses provided higher lactic acid concentration (138 g/L), the best proportion of inoculum being 25% (v/v). After scale-up to a pilot plant, kinetic and yield parameters were 0.849 and 0.0353 for YP/S and YX/S, 0.0278 g/L h (rx), 0.915 g/L h (rs) and 0.863 g/L h (rp).
Authors:
Susan G Karp; Adriana H Igashiyama; Paula F Siqueira; Júlio C Carvalho; Luciana P S Vandenberghe; Vanete Thomaz-Soccol; Jefferson Coral; Jean-Luc Tholozan; Ashok Pandey; Carlos R Soccol
Publication Detail:
Type:  Journal Article     Date:  2010-10-08
Journal Detail:
Title:  Bioresource technology     Volume:  102     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1765-72     Citation Subset:  IM    
Copyright Information:
Copyright © 2010. Published by Elsevier Ltd.
Affiliation:
Bioprocess Engineering and Biotechnology Division, Federal University of Paraná, P.O. Box 19 011, Zip Code 81531-990 Curitiba, Brazil.
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