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Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation
The enzymatic starch hydrolysis and bioethanol production from a variety of sweet potato developed for bioenergy purposes (K 9807.1) on the basis of its high starch yields, was studied. Drying at 55°C and 95°C of sweet potato neither affected the sugar content nor the starch enzymatic hydrolysis eff...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3795201/ https://www.ncbi.nlm.nih.gov/pubmed/24130960 http://dx.doi.org/10.1186/2193-1801-2-493 |
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author | Lareo, Claudia Ferrari, Mario Daniel Guigou, Mairan Fajardo, Lucía Larnaudie, Valeria Ramírez, María Belén Martínez-Garreiro, Jorge |
author_facet | Lareo, Claudia Ferrari, Mario Daniel Guigou, Mairan Fajardo, Lucía Larnaudie, Valeria Ramírez, María Belén Martínez-Garreiro, Jorge |
author_sort | Lareo, Claudia |
collection | PubMed |
description | The enzymatic starch hydrolysis and bioethanol production from a variety of sweet potato developed for bioenergy purposes (K 9807.1) on the basis of its high starch yields, was studied. Drying at 55°C and 95°C of sweet potato neither affected the sugar content nor the starch enzymatic hydrolysis efficiency. Simultaneous saccharification and ethanol fermentations for dry matter ratio of sweet potato to water from 1:8 to 1:2 (w/v) were studied. Fresh sweet potato and dried at 55°C (flour) were assayed. At ratios of 1:8, similar results for fresh sweet potato and flour in terms of ethanol concentration (38–45 g/L), fermentation time (16 h) and sugar conversion (~ 100%) were found. At higher dry matter content, faster full conversion were observed using flour. A higher ratio than that for fresh sweet potato (1:2.2) did not improve the final ethanol concentration (100 g/L) and yields. High ethanol yields were found for VHG (very high gravity) conditions. The sweet potato used is an attractive raw matter for fuel ethanol, since up to 4800 L ethanol per hectare can be obtained. |
format | Online Article Text |
id | pubmed-3795201 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-37952012013-10-15 Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation Lareo, Claudia Ferrari, Mario Daniel Guigou, Mairan Fajardo, Lucía Larnaudie, Valeria Ramírez, María Belén Martínez-Garreiro, Jorge Springerplus Research The enzymatic starch hydrolysis and bioethanol production from a variety of sweet potato developed for bioenergy purposes (K 9807.1) on the basis of its high starch yields, was studied. Drying at 55°C and 95°C of sweet potato neither affected the sugar content nor the starch enzymatic hydrolysis efficiency. Simultaneous saccharification and ethanol fermentations for dry matter ratio of sweet potato to water from 1:8 to 1:2 (w/v) were studied. Fresh sweet potato and dried at 55°C (flour) were assayed. At ratios of 1:8, similar results for fresh sweet potato and flour in terms of ethanol concentration (38–45 g/L), fermentation time (16 h) and sugar conversion (~ 100%) were found. At higher dry matter content, faster full conversion were observed using flour. A higher ratio than that for fresh sweet potato (1:2.2) did not improve the final ethanol concentration (100 g/L) and yields. High ethanol yields were found for VHG (very high gravity) conditions. The sweet potato used is an attractive raw matter for fuel ethanol, since up to 4800 L ethanol per hectare can be obtained. Springer International Publishing 2013-09-30 /pmc/articles/PMC3795201/ /pubmed/24130960 http://dx.doi.org/10.1186/2193-1801-2-493 Text en © Lareo et al.; licensee Springer. 2013 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Lareo, Claudia Ferrari, Mario Daniel Guigou, Mairan Fajardo, Lucía Larnaudie, Valeria Ramírez, María Belén Martínez-Garreiro, Jorge Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title | Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title_full | Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title_fullStr | Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title_full_unstemmed | Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title_short | Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
title_sort | evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3795201/ https://www.ncbi.nlm.nih.gov/pubmed/24130960 http://dx.doi.org/10.1186/2193-1801-2-493 |
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