Morphology and structure of acorn starches isolated by enzymatic and alkaline methods

Detalhes bibliográficos
Autor(a) principal: Correia, Paula M.R.
Data de Publicação: 2021
Outros Autores: Cruz-Lopes, Luísa, Beirão-da-Costa, 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/10400.5/21355
Resumo: Research article
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spelling Morphology and structure of acorn starches isolated by enzymatic and alkaline methodsacorn starchmorphologyX-ray diffractionFTIRNMRResearch articleMorphology and structure of starch from fruits of two acorns species, Quercus rotundifolia Lam. (QR) and Quercus suber Lam. (QS), isolated by enzymatic (ENZ) and alkaline (A3S) methods were studied. Acorn starches granules presented a round and oval shape, consisting of medium/small granules, with a mean granule size ranging between 9 and 13 μm. Isolated acorn starches appear as light grayish-brown in naked eye, with high values of L* for starches isolated by the ENZ method, and QR starches were duller than QS. No differences were observed for all the samples in FTIR spectra results. Acorn starches showed a C-type pattern, with a relative crystallinity between 43.1 and 46.6%. The 13C CP/MAS NMR spectra are different for the used isolation methods but are similar for both acorn species. However, acornisolated starches presented a predominant A-type allomorph packing type, and the A3S starches showed a higher degree of crystalline material. Those differences in the structure of acorn starches would be helpful to better understand the relationships among structure and functional properties for a possible potential industrial application of chestnut starchesDe GruyterRepositório da Universidade de LisboaCorreia, Paula M.R.Cruz-Lopes, LuísaBeirão-da-Costa, Luísa2021-05-26T13:24:16Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/21355engOpen Agriculture 2021; 6: 37–46https://doi.org/10.1515/opag-2021-0214info: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:RCAAP2023-03-06T14:50:48Zoai:www.repository.utl.pt:10400.5/21355Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:57.434318Repositório 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 Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
title Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
spellingShingle Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
Correia, Paula M.R.
acorn starch
morphology
X-ray diffraction
FTIR
NMR
title_short Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
title_full Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
title_fullStr Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
title_full_unstemmed Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
title_sort Morphology and structure of acorn starches isolated by enzymatic and alkaline methods
author Correia, Paula M.R.
author_facet Correia, Paula M.R.
Cruz-Lopes, Luísa
Beirão-da-Costa, Luísa
author_role author
author2 Cruz-Lopes, Luísa
Beirão-da-Costa, Luísa
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Correia, Paula M.R.
Cruz-Lopes, Luísa
Beirão-da-Costa, Luísa
dc.subject.por.fl_str_mv acorn starch
morphology
X-ray diffraction
FTIR
NMR
topic acorn starch
morphology
X-ray diffraction
FTIR
NMR
description Research article
publishDate 2021
dc.date.none.fl_str_mv 2021-05-26T13:24:16Z
2021
2021-01-01T00:00:00Z
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/10400.5/21355
url http://hdl.handle.net/10400.5/21355
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Open Agriculture 2021; 6: 37–46
https://doi.org/10.1515/opag-2021-0214
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 De Gruyter
publisher.none.fl_str_mv De Gruyter
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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