Very high gravity bioethanol revisited: main challenges and advances
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/70781 |
Resumo: | Over the last decades, the constant growth of the world-wide industry has been leading to more and more concerns with its direct impact on greenhouse gas (GHG) emissions. Resulting from that, rising efforts have been dedicated to a global transition from an oil-based industry to cleaner biotechnological processes. A specific example refers to the production of bioethanol to substitute the traditional transportation fuels. Bioethanol has been produced for decades now, mainly from energy crops, but more recently, also from lignocellulosic materials. Aiming to improve process economics, the fermentation of very high gravity (VHG) mediums has for long received considerable attention. Nowadays, with the growth of multi-waste valorization frameworks, VHG fermentation could be crucial for bioeconomy development. However, numerous obstacles remain. This work initially presents the main aspects of a VHG process, giving then special emphasis to some of the most important factors that traditionally affect the fermentation organism, such as nutrients depletion, osmotic stress, and ethanol toxicity. Afterwards, some factors that could possibly enable critical improvements in the future on VHG technologies are discussed. Special attention was given to the potential of the development of new fermentation organisms, nutritionally complete culture media, but also on alternative process conditions and configurations. |
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Very high gravity bioethanol revisited: main challenges and advancesBioethanolVery high gravity fermentationSaccharomyces cerevisiaeStress toleranceProcess optimizationBioeconomyScience & TechnologyOver the last decades, the constant growth of the world-wide industry has been leading to more and more concerns with its direct impact on greenhouse gas (GHG) emissions. Resulting from that, rising efforts have been dedicated to a global transition from an oil-based industry to cleaner biotechnological processes. A specific example refers to the production of bioethanol to substitute the traditional transportation fuels. Bioethanol has been produced for decades now, mainly from energy crops, but more recently, also from lignocellulosic materials. Aiming to improve process economics, the fermentation of very high gravity (VHG) mediums has for long received considerable attention. Nowadays, with the growth of multi-waste valorization frameworks, VHG fermentation could be crucial for bioeconomy development. However, numerous obstacles remain. This work initially presents the main aspects of a VHG process, giving then special emphasis to some of the most important factors that traditionally affect the fermentation organism, such as nutrients depletion, osmotic stress, and ethanol toxicity. Afterwards, some factors that could possibly enable critical improvements in the future on VHG technologies are discussed. Special attention was given to the potential of the development of new fermentation organisms, nutritionally complete culture media, but also on alternative process conditions and configurations.This work has been carried out at the Biomass and Bioenergy Research Infrastructure (BBRI)- LISBOA-01-0145-FEDER-022059, supported by Operational Programme for Competitive ness and Internationalization (PORTUGAL2020), by Lisbon Portugal Regional Operational Pro gramme (Lisboa 2020) and by North Portugal Regional Operational Program (Norte 2020) under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) and has been supported by the Portuguese Foundation for Science and Technology (FCT) under the scope of the strategic funding of UIDB/04469/2020 and through Project EcoTech (POCI-01-0145- FEDER-032206/ FAPESP 2018/07522-6) funded by the European Regional Development Fund under the scope of Norte2020—Programa Operacional Regional do Norte. The authors also acknowledge the financial support of Research Support Foundation of the state of Minas Gerais-FAPEMIG, National Counsel of Technological and Scientific Development-CNPq and Coordination for the Improvement of Higher Education Personnel-CAPES (Finance Code 001).info:eu-repo/semantics/publishedVersionMDPIUniversidade do MinhoGomes, Daniel GonçalvesCruz, Mariana LopesResende, Miriam deRibeiro, EloízioTeixeira, J. A.Domingues, Lucília2021-03-132021-03-13T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/70781engGomes, Daniel G.; Cruz, M. L.; de Resende, Miriam; Ribeiro, Eloízio; Teixeira, José A.; Domingues, Lucília, Very High Gravity Bioethanol Revisited: Main Challenges and Advances. Fermentation, 7(1), 38, 20212311-563710.3390/fermentation7010038https://www.mdpi.com/journal/fermentationinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:19:31Zoai:repositorium.sdum.uminho.pt:1822/70781Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:12:28.212279Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Very high gravity bioethanol revisited: main challenges and advances |
title |
Very high gravity bioethanol revisited: main challenges and advances |
spellingShingle |
Very high gravity bioethanol revisited: main challenges and advances Gomes, Daniel Gonçalves Bioethanol Very high gravity fermentation Saccharomyces cerevisiae Stress tolerance Process optimization Bioeconomy Science & Technology |
title_short |
Very high gravity bioethanol revisited: main challenges and advances |
title_full |
Very high gravity bioethanol revisited: main challenges and advances |
title_fullStr |
Very high gravity bioethanol revisited: main challenges and advances |
title_full_unstemmed |
Very high gravity bioethanol revisited: main challenges and advances |
title_sort |
Very high gravity bioethanol revisited: main challenges and advances |
author |
Gomes, Daniel Gonçalves |
author_facet |
Gomes, Daniel Gonçalves Cruz, Mariana Lopes Resende, Miriam de Ribeiro, Eloízio Teixeira, J. A. Domingues, Lucília |
author_role |
author |
author2 |
Cruz, Mariana Lopes Resende, Miriam de Ribeiro, Eloízio Teixeira, J. A. Domingues, Lucília |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Gomes, Daniel Gonçalves Cruz, Mariana Lopes Resende, Miriam de Ribeiro, Eloízio Teixeira, J. A. Domingues, Lucília |
dc.subject.por.fl_str_mv |
Bioethanol Very high gravity fermentation Saccharomyces cerevisiae Stress tolerance Process optimization Bioeconomy Science & Technology |
topic |
Bioethanol Very high gravity fermentation Saccharomyces cerevisiae Stress tolerance Process optimization Bioeconomy Science & Technology |
description |
Over the last decades, the constant growth of the world-wide industry has been leading to more and more concerns with its direct impact on greenhouse gas (GHG) emissions. Resulting from that, rising efforts have been dedicated to a global transition from an oil-based industry to cleaner biotechnological processes. A specific example refers to the production of bioethanol to substitute the traditional transportation fuels. Bioethanol has been produced for decades now, mainly from energy crops, but more recently, also from lignocellulosic materials. Aiming to improve process economics, the fermentation of very high gravity (VHG) mediums has for long received considerable attention. Nowadays, with the growth of multi-waste valorization frameworks, VHG fermentation could be crucial for bioeconomy development. However, numerous obstacles remain. This work initially presents the main aspects of a VHG process, giving then special emphasis to some of the most important factors that traditionally affect the fermentation organism, such as nutrients depletion, osmotic stress, and ethanol toxicity. Afterwards, some factors that could possibly enable critical improvements in the future on VHG technologies are discussed. Special attention was given to the potential of the development of new fermentation organisms, nutritionally complete culture media, but also on alternative process conditions and configurations. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-13 2021-03-13T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/70781 |
url |
http://hdl.handle.net/1822/70781 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gomes, Daniel G.; Cruz, M. L.; de Resende, Miriam; Ribeiro, Eloízio; Teixeira, José A.; Domingues, Lucília, Very High Gravity Bioethanol Revisited: Main Challenges and Advances. Fermentation, 7(1), 38, 2021 2311-5637 10.3390/fermentation7010038 https://www.mdpi.com/journal/fermentation |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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