VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES
Autor(a) principal: | |
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Data de Publicação: | 1998 |
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=S0104-66321998000300001 |
Resumo: | During rapid ethanol fermentation (2-3 h) of sugar-cane blackstrap molasses, a significant increase in the ethanol yield was frequently observed as fermentation proceeded, eventually leading to yields higher than the theoretical value when the end of the process was approached. In order to explain the above facts, three assumptions were examined: 1. temporary ethanol accumulation within the yeast cells; 2. variation of the dry matter content and/or of the microorganism density during the fermentation; 3. transformation of sugars into undetectable extra-cellular fermentable compounds at the initial stages of the process. Based on the experimental results presented here, the third of the above assumptions seems to explain the observed increase in the ethanol yield. |
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Brazilian Journal of Chemical Engineering |
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spelling |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSESRapid ethanol fermentationethanol yield variationethanol fermentation of molassesDuring rapid ethanol fermentation (2-3 h) of sugar-cane blackstrap molasses, a significant increase in the ethanol yield was frequently observed as fermentation proceeded, eventually leading to yields higher than the theoretical value when the end of the process was approached. In order to explain the above facts, three assumptions were examined: 1. temporary ethanol accumulation within the yeast cells; 2. variation of the dry matter content and/or of the microorganism density during the fermentation; 3. transformation of sugars into undetectable extra-cellular fermentable compounds at the initial stages of the process. Based on the experimental results presented here, the third of the above assumptions seems to explain the observed increase in the ethanol yield.Brazilian Society of Chemical Engineering1998-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321998000300001Brazilian Journal of Chemical Engineering v.15 n.3 1998reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66321998000300001info:eu-repo/semantics/openAccessBorzani,W.Jurkiewicz,C.H.eng1998-10-30T00:00:00Zoai:scielo:S0104-66321998000300001Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:1998-10-30T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
title |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
spellingShingle |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES Borzani,W. Rapid ethanol fermentation ethanol yield variation ethanol fermentation of molasses |
title_short |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
title_full |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
title_fullStr |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
title_full_unstemmed |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
title_sort |
VARIATION OF THE ETHANOL YIELD DURING VERY RAPID BATCH FERMENTATION OF SUGAR-CANE BLACKSTRAP MOLASSES |
author |
Borzani,W. |
author_facet |
Borzani,W. Jurkiewicz,C.H. |
author_role |
author |
author2 |
Jurkiewicz,C.H. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Borzani,W. Jurkiewicz,C.H. |
dc.subject.por.fl_str_mv |
Rapid ethanol fermentation ethanol yield variation ethanol fermentation of molasses |
topic |
Rapid ethanol fermentation ethanol yield variation ethanol fermentation of molasses |
description |
During rapid ethanol fermentation (2-3 h) of sugar-cane blackstrap molasses, a significant increase in the ethanol yield was frequently observed as fermentation proceeded, eventually leading to yields higher than the theoretical value when the end of the process was approached. In order to explain the above facts, three assumptions were examined: 1. temporary ethanol accumulation within the yeast cells; 2. variation of the dry matter content and/or of the microorganism density during the fermentation; 3. transformation of sugars into undetectable extra-cellular fermentable compounds at the initial stages of the process. Based on the experimental results presented here, the third of the above assumptions seems to explain the observed increase in the ethanol yield. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-09-01 |
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=S0104-66321998000300001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321998000300001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66321998000300001 |
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.15 n.3 1998 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_ |
1754213170355896320 |