Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae

Detalhes bibliográficos
Autor(a) principal: Arshad,Muhammad
Data de Publicação: 2017
Outros Autores: Hussain,Tariq, Iqbal,Munawar, Abbas,Mazhar
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=S1517-83822017000300403
Resumo: Abstract Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60 vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) at 40 Brix° with 0.2 vvm air-flow rate. At optimum level aeration and 40 Brix° VHG, the residual sugar level was recorded in the range of 12.5-18.5 g/L, whereas the viable cell count remained constant up to 50 h of fermentation and dry matter production increased with fermentation time. Both water and steam consumption reduced significantly under optimum conditions of Brix° and aeration rate with compromising the ethanol production. Results revealed VHG with continuous air flow is viable technique to reduce the ethanol production cost form molasses at commercial scale.
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spelling Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiaeVery high gravity technologyEthanolMolassesAerationBrixAbstract Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60 vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) at 40 Brix° with 0.2 vvm air-flow rate. At optimum level aeration and 40 Brix° VHG, the residual sugar level was recorded in the range of 12.5-18.5 g/L, whereas the viable cell count remained constant up to 50 h of fermentation and dry matter production increased with fermentation time. Both water and steam consumption reduced significantly under optimum conditions of Brix° and aeration rate with compromising the ethanol production. Results revealed VHG with continuous air flow is viable technique to reduce the ethanol production cost form molasses at commercial scale.Sociedade Brasileira de Microbiologia2017-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300403Brazilian Journal of Microbiology v.48 n.3 2017reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1016/j.bjm.2017.02.003info:eu-repo/semantics/openAccessArshad,MuhammadHussain,TariqIqbal,MunawarAbbas,Mazhareng2017-07-31T00:00:00Zoai:scielo:S1517-83822017000300403Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2017-07-31T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false
dc.title.none.fl_str_mv Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
title Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
spellingShingle Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
Arshad,Muhammad
Very high gravity technology
Ethanol
Molasses
Aeration
Brix
title_short Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
title_full Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
title_fullStr Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
title_full_unstemmed Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
title_sort Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
author Arshad,Muhammad
author_facet Arshad,Muhammad
Hussain,Tariq
Iqbal,Munawar
Abbas,Mazhar
author_role author
author2 Hussain,Tariq
Iqbal,Munawar
Abbas,Mazhar
author2_role author
author
author
dc.contributor.author.fl_str_mv Arshad,Muhammad
Hussain,Tariq
Iqbal,Munawar
Abbas,Mazhar
dc.subject.por.fl_str_mv Very high gravity technology
Ethanol
Molasses
Aeration
Brix
topic Very high gravity technology
Ethanol
Molasses
Aeration
Brix
description Abstract Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60 vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) at 40 Brix° with 0.2 vvm air-flow rate. At optimum level aeration and 40 Brix° VHG, the residual sugar level was recorded in the range of 12.5-18.5 g/L, whereas the viable cell count remained constant up to 50 h of fermentation and dry matter production increased with fermentation time. Both water and steam consumption reduced significantly under optimum conditions of Brix° and aeration rate with compromising the ethanol production. Results revealed VHG with continuous air flow is viable technique to reduce the ethanol production cost form molasses at commercial scale.
publishDate 2017
dc.date.none.fl_str_mv 2017-07-01
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=S1517-83822017000300403
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300403
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1016/j.bjm.2017.02.003
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.48 n.3 2017
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
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