Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000100004 |
Resumo: | A Plackett-Burman experimental design was used to evaluate seven medium components added to molasses (corn steep liquor, sodium acetate, magnesium sulfate, manganese sulfate, ammonium citrate, potassium phosphate and Tween 80). Corn steep liquor (CSL), K2HPO4 and Tween 80 increased lactic acid production. The concentrations of these three components as well as the molasses were further optimized using the response surface method. A maximal lactic acid production of 94.8 g L-1 was obtained when the concentrations of molasses, CSL, K2HPO4 and Tween 80 were 193.50 g L-1, 37.50 mL L-1, 2.65 g L-1 and 0.83 mL L-1, respectively. However, in both shaker and bioreactor, approximately one fourth of the sugar added initially was not utilized after 48 hours of fermentation. Future studies that consider high conversion of sugar into final product as well as high volumetric productivity are necessary to improve the fermentation process and to reduce the downstream costs. |
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Brazilian Journal of Chemical Engineering |
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Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium compositionPlackett-BurmanCorn steep liquorResponse surface methodologyMedium optimizationPotassium phosphateTweenA Plackett-Burman experimental design was used to evaluate seven medium components added to molasses (corn steep liquor, sodium acetate, magnesium sulfate, manganese sulfate, ammonium citrate, potassium phosphate and Tween 80). Corn steep liquor (CSL), K2HPO4 and Tween 80 increased lactic acid production. The concentrations of these three components as well as the molasses were further optimized using the response surface method. A maximal lactic acid production of 94.8 g L-1 was obtained when the concentrations of molasses, CSL, K2HPO4 and Tween 80 were 193.50 g L-1, 37.50 mL L-1, 2.65 g L-1 and 0.83 mL L-1, respectively. However, in both shaker and bioreactor, approximately one fourth of the sugar added initially was not utilized after 48 hours of fermentation. Future studies that consider high conversion of sugar into final product as well as high volumetric productivity are necessary to improve the fermentation process and to reduce the downstream costs.Brazilian Society of Chemical Engineering2011-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000100004Brazilian Journal of Chemical Engineering v.28 n.1 2011reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322011000100004info:eu-repo/semantics/openAccessCoelho,L. F.Lima,C. J. B. deRodovalho,C. M.Bernardo,M. P.Contiero,J.eng2011-03-15T00:00:00Zoai:scielo:S0104-66322011000100004Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2011-03-15T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
title |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
spellingShingle |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition Coelho,L. F. Plackett-Burman Corn steep liquor Response surface methodology Medium optimization Potassium phosphate Tween |
title_short |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
title_full |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
title_fullStr |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
title_full_unstemmed |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
title_sort |
Lactic acid production by new Lactobacillus plantarum LMISM6 grown in molasses: optimization of medium composition |
author |
Coelho,L. F. |
author_facet |
Coelho,L. F. Lima,C. J. B. de Rodovalho,C. M. Bernardo,M. P. Contiero,J. |
author_role |
author |
author2 |
Lima,C. J. B. de Rodovalho,C. M. Bernardo,M. P. Contiero,J. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Coelho,L. F. Lima,C. J. B. de Rodovalho,C. M. Bernardo,M. P. Contiero,J. |
dc.subject.por.fl_str_mv |
Plackett-Burman Corn steep liquor Response surface methodology Medium optimization Potassium phosphate Tween |
topic |
Plackett-Burman Corn steep liquor Response surface methodology Medium optimization Potassium phosphate Tween |
description |
A Plackett-Burman experimental design was used to evaluate seven medium components added to molasses (corn steep liquor, sodium acetate, magnesium sulfate, manganese sulfate, ammonium citrate, potassium phosphate and Tween 80). Corn steep liquor (CSL), K2HPO4 and Tween 80 increased lactic acid production. The concentrations of these three components as well as the molasses were further optimized using the response surface method. A maximal lactic acid production of 94.8 g L-1 was obtained when the concentrations of molasses, CSL, K2HPO4 and Tween 80 were 193.50 g L-1, 37.50 mL L-1, 2.65 g L-1 and 0.83 mL L-1, respectively. However, in both shaker and bioreactor, approximately one fourth of the sugar added initially was not utilized after 48 hours of fermentation. Future studies that consider high conversion of sugar into final product as well as high volumetric productivity are necessary to improve the fermentation process and to reduce the downstream costs. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000100004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322011000100004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322011000100004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.28 n.1 2011 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213173420883968 |