Pigment changes during processing of green table olive specialities treated with alkali and without fermentation

24 páginas, 2 figuras, 1 tabla

Detalhes bibliográficos
Autores: Gandul-Rojas, Beatriz, Gallardo Guerrero, Lourdes
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/121715
Acesso em linha:http://hdl.handle.net/10261/121715
Access Level:acceso abierto
Palavra-chave:Allomerized derivatives
Alkaline treatments
Carotenoids
Castelvetrano-style
Chlorophyll
Cu–chlorophyll derivatives
Table olive
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network_acronym_str ES
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repository_id_str
spelling Pigment changes during processing of green table olive specialities treated with alkali and without fermentationGandul-Rojas, BeatrizGallardo Guerrero, LourdesAllomerized derivativesAlkaline treatmentsCarotenoidsCastelvetrano-styleChlorophyllCu–chlorophyll derivativesTable olive24 páginas, 2 figuras, 1 tablaGreen table olive preparations including an alkaline treatment, but not preservation by natural fermentation, such as Castelvetrano-style, are gaining importance in international trade. One of the main highly valued characteristics for this product is a bright green colour, as similar as possible to the fresh fruit. Large proportions of Cu–chlorophyll complexes have been quantified in commercial products of Castelvetrano-style table olives thus in the present work the changes in the chlorophyll and carotenoid composition of olive fruits during this processing style were investigated. The high alkaline pH of the process was the most important feature governing the subsequent transformation of the chlorophyll pigments initially present in the fresh fruit. During processing, the main transformations of pigments were due to allomerization and solvolysis reactions of chlorophylls a and b, which affected the isocyclic ring of the chlorophyll structure but not the Mg atom that remained, and did not change substantially the pigment colour and, consequently, the fruit colour. No Cu–chlorophyll derivatives were detected. Then, even though the intense alkali treatment of the olives may cause such damage in the fruit cells that enables contact between the chlorophyll derivatives and the endogenous Cu of the fruit, the absence of acidic conditions during the olive processing did not lead to the previous reaction of Mg replacement by 2H, which is necessary for the following insertion of Cu. With respect to the carotenoid fraction, any noticeable change took place.This work was supported by the Ministerio de Educación y Ciencia (Spanish Government, AGL 2012-39714/ALI), and Junta de Andalucía through financial support to the group AGR 148-2011. We thank Sergio Alcañiz-García for the technical assistance. The authors are members of the IBERCAROT Network, funded by CYTED (ref. 112RT0445).Peer reviewedElsevierMinisterio de Educación y Ciencia (España)Junta de AndalucíaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/121715reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.foodres.2014.05.007Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1217152026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
title Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
spellingShingle Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
Gandul-Rojas, Beatriz
Allomerized derivatives
Alkaline treatments
Carotenoids
Castelvetrano-style
Chlorophyll
Cu–chlorophyll derivatives
Table olive
title_short Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
title_full Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
title_fullStr Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
title_full_unstemmed Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
title_sort Pigment changes during processing of green table olive specialities treated with alkali and without fermentation
dc.creator.none.fl_str_mv Gandul-Rojas, Beatriz
Gallardo Guerrero, Lourdes
author Gandul-Rojas, Beatriz
author_facet Gandul-Rojas, Beatriz
Gallardo Guerrero, Lourdes
author_role author
author2 Gallardo Guerrero, Lourdes
author2_role author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (España)
Junta de Andalucía
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Allomerized derivatives
Alkaline treatments
Carotenoids
Castelvetrano-style
Chlorophyll
Cu–chlorophyll derivatives
Table olive
topic Allomerized derivatives
Alkaline treatments
Carotenoids
Castelvetrano-style
Chlorophyll
Cu–chlorophyll derivatives
Table olive
description 24 páginas, 2 figuras, 1 tabla
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/121715
url http://hdl.handle.net/10261/121715
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.foodres.2014.05.007
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869419754731601920
score 15,811543

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