Integrated utilization of grape skins from white grape pomaces
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/10400.19/7547 |
Resumo: | An approach for the integrated utilization of grape skins from white grape pomaces has been proposed. This consists of consecutive or simultaneous extraction of grape skins with neutral organic solvent and water under reflux. Organic extract is a valuable raw material for the isolation of oleanolic acid. The aqueous extract (ca 50%, w/w) is composed of essentially hexoses and suitable for the high yield (till 51%) bioethanol production at a maximum specific cell growth rate (μmax) of 0.29 h−1. The remained extracted grape skins are the complex of structural polysaccharides embedded into cutinous matrix. Extracted grape skins were shown to be a prospective raw material for the production of low-density boards (d ≤ 0.40) for insulation needs. The boards produced from grape skins and bind of 8% urea–formaldehyde resin revealed reasonable tensile strength (0.4 MPa) and a low thermal conductivity (0.09–0.12 W (m K)−1) over a wide range of temperatures (40–200 °C). |
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Integrated utilization of grape skins from white grape pomacesGrape skinsOleanolic acidLow-density boardsBioethanolAn approach for the integrated utilization of grape skins from white grape pomaces has been proposed. This consists of consecutive or simultaneous extraction of grape skins with neutral organic solvent and water under reflux. Organic extract is a valuable raw material for the isolation of oleanolic acid. The aqueous extract (ca 50%, w/w) is composed of essentially hexoses and suitable for the high yield (till 51%) bioethanol production at a maximum specific cell growth rate (μmax) of 0.29 h−1. The remained extracted grape skins are the complex of structural polysaccharides embedded into cutinous matrix. Extracted grape skins were shown to be a prospective raw material for the production of low-density boards (d ≤ 0.40) for insulation needs. The boards produced from grape skins and bind of 8% urea–formaldehyde resin revealed reasonable tensile strength (0.4 MPa) and a low thermal conductivity (0.09–0.12 W (m K)−1) over a wide range of temperatures (40–200 °C).Repositório Científico do Instituto Politécnico de ViseuMendes, Joana A.S.Xavier, Ana M.R.B.Evtuguin, Dmitry V.Cruz-Lopes, Luísa2023-01-13T11:33:04Z20132023-01-12T12:19:41Z2013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.19/7547engMendes, J. A. S., Xavier, A. M. R. B., Evtuguin, D. V., & Lopes, L. P. C. (2013). Integrated utilization of grape skins from white grape pomaces. Industrial Crops and Products, 49, 286–291. https://doi.org/10.1016/j.indcrop.2013.05.0030926-6690cv-prod-150427810.1016/j.indcrop.2013.05.0032-s2.0-84879315409info: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:RCAAP2023-01-16T15:29:40Zoai:repositorio.ipv.pt:10400.19/7547Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:45:15.208294Repositório 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 |
Integrated utilization of grape skins from white grape pomaces |
title |
Integrated utilization of grape skins from white grape pomaces |
spellingShingle |
Integrated utilization of grape skins from white grape pomaces Mendes, Joana A.S. Grape skins Oleanolic acid Low-density boards Bioethanol |
title_short |
Integrated utilization of grape skins from white grape pomaces |
title_full |
Integrated utilization of grape skins from white grape pomaces |
title_fullStr |
Integrated utilization of grape skins from white grape pomaces |
title_full_unstemmed |
Integrated utilization of grape skins from white grape pomaces |
title_sort |
Integrated utilization of grape skins from white grape pomaces |
author |
Mendes, Joana A.S. |
author_facet |
Mendes, Joana A.S. Xavier, Ana M.R.B. Evtuguin, Dmitry V. Cruz-Lopes, Luísa |
author_role |
author |
author2 |
Xavier, Ana M.R.B. Evtuguin, Dmitry V. Cruz-Lopes, Luísa |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico de Viseu |
dc.contributor.author.fl_str_mv |
Mendes, Joana A.S. Xavier, Ana M.R.B. Evtuguin, Dmitry V. Cruz-Lopes, Luísa |
dc.subject.por.fl_str_mv |
Grape skins Oleanolic acid Low-density boards Bioethanol |
topic |
Grape skins Oleanolic acid Low-density boards Bioethanol |
description |
An approach for the integrated utilization of grape skins from white grape pomaces has been proposed. This consists of consecutive or simultaneous extraction of grape skins with neutral organic solvent and water under reflux. Organic extract is a valuable raw material for the isolation of oleanolic acid. The aqueous extract (ca 50%, w/w) is composed of essentially hexoses and suitable for the high yield (till 51%) bioethanol production at a maximum specific cell growth rate (μmax) of 0.29 h−1. The remained extracted grape skins are the complex of structural polysaccharides embedded into cutinous matrix. Extracted grape skins were shown to be a prospective raw material for the production of low-density boards (d ≤ 0.40) for insulation needs. The boards produced from grape skins and bind of 8% urea–formaldehyde resin revealed reasonable tensile strength (0.4 MPa) and a low thermal conductivity (0.09–0.12 W (m K)−1) over a wide range of temperatures (40–200 °C). |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z 2023-01-13T11:33:04Z 2023-01-12T12:19:41Z |
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/10400.19/7547 |
url |
http://hdl.handle.net/10400.19/7547 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Mendes, J. A. S., Xavier, A. M. R. B., Evtuguin, D. V., & Lopes, L. P. C. (2013). Integrated utilization of grape skins from white grape pomaces. Industrial Crops and Products, 49, 286–291. https://doi.org/10.1016/j.indcrop.2013.05.003 0926-6690 cv-prod-1504278 10.1016/j.indcrop.2013.05.003 2-s2.0-84879315409 |
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.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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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) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799130923922358272 |