The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300893 |
Resumo: | The production of lactic acid from date juice by Lactobacillus caseisubsp. rhamnosus in batch and fed-batch cultures has been investigated. The fed-batch culture system gave better results for lactic acid production and volumetric productivity. The aim of this work is to determine the effects of the feeding rate and the concentration of the feeding medium containing date juice glucose on the cell growth, the consumption of glucose and the lactic acid production by Lactobacillus casei subsp. rhamnosus in fed-batch cultures. For this study, two concentrations of the feeding medium (62 and 100 g/L of date juice glucose) were tested at different feeding rates (18, 22, 33, 75 and 150 mL/h). The highest volumetric productivity (1.3 g/L.h) and lactic acid yield (1.7 g/g) were obtained at a feeding rate of 33 mL/h and a date juice glucose concentration of 62 g/L in the feeding medium. As a result, most of the date juice glucose was completely utilised (residual glucose 1 g/L), and a maximum lactic acid production level (89.2 g/L) was obtained. |
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Brazilian Journal of Microbiology |
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The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosusfed-batch culturelactic acidLactobacillus casei subsp. rhamnosusdate juiceThe production of lactic acid from date juice by Lactobacillus caseisubsp. rhamnosus in batch and fed-batch cultures has been investigated. The fed-batch culture system gave better results for lactic acid production and volumetric productivity. The aim of this work is to determine the effects of the feeding rate and the concentration of the feeding medium containing date juice glucose on the cell growth, the consumption of glucose and the lactic acid production by Lactobacillus casei subsp. rhamnosus in fed-batch cultures. For this study, two concentrations of the feeding medium (62 and 100 g/L of date juice glucose) were tested at different feeding rates (18, 22, 33, 75 and 150 mL/h). The highest volumetric productivity (1.3 g/L.h) and lactic acid yield (1.7 g/g) were obtained at a feeding rate of 33 mL/h and a date juice glucose concentration of 62 g/L in the feeding medium. As a result, most of the date juice glucose was completely utilised (residual glucose 1 g/L), and a maximum lactic acid production level (89.2 g/L) was obtained.Sociedade Brasileira de Microbiologia2015-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300893Brazilian Journal of Microbiology v.46 n.3 2015reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-838246320131067info:eu-repo/semantics/openAccessNancib,AichaNancib,NabilBoubendir,AbdelhafidBoudrant,Josepheng2015-08-31T00:00:00Zoai:scielo:S1517-83822015000300893Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2015-08-31T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
title |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
spellingShingle |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus Nancib,Aicha fed-batch culture lactic acid Lactobacillus casei subsp. rhamnosus date juice |
title_short |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
title_full |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
title_fullStr |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
title_full_unstemmed |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
title_sort |
The use of date waste for lactic acid production by a fed-batch culture using Lactobacillus casei subsp. rhamnosus |
author |
Nancib,Aicha |
author_facet |
Nancib,Aicha Nancib,Nabil Boubendir,Abdelhafid Boudrant,Joseph |
author_role |
author |
author2 |
Nancib,Nabil Boubendir,Abdelhafid Boudrant,Joseph |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Nancib,Aicha Nancib,Nabil Boubendir,Abdelhafid Boudrant,Joseph |
dc.subject.por.fl_str_mv |
fed-batch culture lactic acid Lactobacillus casei subsp. rhamnosus date juice |
topic |
fed-batch culture lactic acid Lactobacillus casei subsp. rhamnosus date juice |
description |
The production of lactic acid from date juice by Lactobacillus caseisubsp. rhamnosus in batch and fed-batch cultures has been investigated. The fed-batch culture system gave better results for lactic acid production and volumetric productivity. The aim of this work is to determine the effects of the feeding rate and the concentration of the feeding medium containing date juice glucose on the cell growth, the consumption of glucose and the lactic acid production by Lactobacillus casei subsp. rhamnosus in fed-batch cultures. For this study, two concentrations of the feeding medium (62 and 100 g/L of date juice glucose) were tested at different feeding rates (18, 22, 33, 75 and 150 mL/h). The highest volumetric productivity (1.3 g/L.h) and lactic acid yield (1.7 g/g) were obtained at a feeding rate of 33 mL/h and a date juice glucose concentration of 62 g/L in the feeding medium. As a result, most of the date juice glucose was completely utilised (residual glucose 1 g/L), and a maximum lactic acid production level (89.2 g/L) was obtained. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-01 |
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=S1517-83822015000300893 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300893 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-838246320131067 |
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 |
Sociedade Brasileira de Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.46 n.3 2015 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122207922814976 |