Integrated utilization of grape skins from white grape pomaces

Detalhes bibliográficos
Autor(a) principal: Mendes, Joana A.S.
Data de Publicação: 2013
Outros Autores: Xavier, Ana M.R.B., Evtuguin, Dmitry V., Cruz-Lopes, Luísa
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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spelling 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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection 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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