Enhanced ethanol production at commercial scale from molasses using high gravity technology by mutant S. cerevisiae
Autor(a) principal: | |
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Data de Publicação: | 2017 |
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=S1517-83822017000300403 |
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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Brazilian Journal of Microbiology |
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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 |
_version_ |
1752122209171668992 |