End of day harvest delays postharvest senescence of broccoli florets

Autores
Hasperué, Héctor Joaquín; Chaves, Alicia Raquel; Martinez, Gustavo Adolfo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Broccoli heads were harvested at different times of the day (sunrise, midday and sunset) and then stored at 20 °C for 5 d. The samples harvested at sunset showed the lowest loss of colour and chlorophyll degradation, those picked at dawn had the highest degreening, whereas heads harvested at midday showed an intermediate behaviour. As broccoli shelf life is mainly determined by external appearance and surface colour, harvesting heads at the end of the day instead of in early morning can extend their shelf life by 1 d, when stored at 20 °C. Samples harvested at sunset also had the highest levels of total soluble and reducing sugars, antioxidants and phenolic compounds during storage. However, at harvest, samples obtained at different moments had the same levels of chlorophylls, soluble sugars, antioxidant and phenolics; whereas the starch content was clearly different among samples. Those harvested at dusk had higher starch levels than those harvested at sunset. We hypothesize that starch degradation produces single sugars whose presence delays senescence in samples harvested at the end of the day. This fact was corroborated by providing an exogenous supply of glucose or sucrose to samples harvested in early morning, which also showed a delayed senescence by maintaining higher levels of chlorophylls, antioxidants and phenolics. Our results suggest that starch accumulated during daylight delays senescence in broccoli and helps to maintain better postharvest quality and nutritional parameters.
Fil: Hasperué, Héctor Joaquín. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Chaves, Alicia Raquel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Martinez, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina
Materia
Preharvest factors
Sugars
Senescence
Broccoli
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/109789
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling End of day harvest delays postharvest senescence of broccoli floretsHasperué, Héctor JoaquínChaves, Alicia RaquelMartinez, Gustavo AdolfoPreharvest factorsSugarsSenescenceBroccolihttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1Broccoli heads were harvested at different times of the day (sunrise, midday and sunset) and then stored at 20 °C for 5 d. The samples harvested at sunset showed the lowest loss of colour and chlorophyll degradation, those picked at dawn had the highest degreening, whereas heads harvested at midday showed an intermediate behaviour. As broccoli shelf life is mainly determined by external appearance and surface colour, harvesting heads at the end of the day instead of in early morning can extend their shelf life by 1 d, when stored at 20 °C. Samples harvested at sunset also had the highest levels of total soluble and reducing sugars, antioxidants and phenolic compounds during storage. However, at harvest, samples obtained at different moments had the same levels of chlorophylls, soluble sugars, antioxidant and phenolics; whereas the starch content was clearly different among samples. Those harvested at dusk had higher starch levels than those harvested at sunset. We hypothesize that starch degradation produces single sugars whose presence delays senescence in samples harvested at the end of the day. This fact was corroborated by providing an exogenous supply of glucose or sucrose to samples harvested in early morning, which also showed a delayed senescence by maintaining higher levels of chlorophylls, antioxidants and phenolics. Our results suggest that starch accumulated during daylight delays senescence in broccoli and helps to maintain better postharvest quality and nutritional parameters.Fil: Hasperué, Héctor Joaquín. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Chaves, Alicia Raquel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; ArgentinaFil: Martinez, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaElsevier Science2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/109789Hasperué, Héctor Joaquín; Chaves, Alicia Raquel; Martinez, Gustavo Adolfo; End of day harvest delays postharvest senescence of broccoli florets; Elsevier Science; Postharvest Biology and Technology; 59; 1; 1-2011; 64-700925-52141873-2356CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925521410001791info:eu-repo/semantics/altIdentifier/doi/10.1016/j.postharvbio.2010.08.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:33Zoai:ri.conicet.gov.ar:11336/109789instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:33.996CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv End of day harvest delays postharvest senescence of broccoli florets
title End of day harvest delays postharvest senescence of broccoli florets
spellingShingle End of day harvest delays postharvest senescence of broccoli florets
Hasperué, Héctor Joaquín
Preharvest factors
Sugars
Senescence
Broccoli
title_short End of day harvest delays postharvest senescence of broccoli florets
title_full End of day harvest delays postharvest senescence of broccoli florets
title_fullStr End of day harvest delays postharvest senescence of broccoli florets
title_full_unstemmed End of day harvest delays postharvest senescence of broccoli florets
title_sort End of day harvest delays postharvest senescence of broccoli florets
dc.creator.none.fl_str_mv Hasperué, Héctor Joaquín
Chaves, Alicia Raquel
Martinez, Gustavo Adolfo
author Hasperué, Héctor Joaquín
author_facet Hasperué, Héctor Joaquín
Chaves, Alicia Raquel
Martinez, Gustavo Adolfo
author_role author
author2 Chaves, Alicia Raquel
Martinez, Gustavo Adolfo
author2_role author
author
dc.subject.none.fl_str_mv Preharvest factors
Sugars
Senescence
Broccoli
topic Preharvest factors
Sugars
Senescence
Broccoli
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Broccoli heads were harvested at different times of the day (sunrise, midday and sunset) and then stored at 20 °C for 5 d. The samples harvested at sunset showed the lowest loss of colour and chlorophyll degradation, those picked at dawn had the highest degreening, whereas heads harvested at midday showed an intermediate behaviour. As broccoli shelf life is mainly determined by external appearance and surface colour, harvesting heads at the end of the day instead of in early morning can extend their shelf life by 1 d, when stored at 20 °C. Samples harvested at sunset also had the highest levels of total soluble and reducing sugars, antioxidants and phenolic compounds during storage. However, at harvest, samples obtained at different moments had the same levels of chlorophylls, soluble sugars, antioxidant and phenolics; whereas the starch content was clearly different among samples. Those harvested at dusk had higher starch levels than those harvested at sunset. We hypothesize that starch degradation produces single sugars whose presence delays senescence in samples harvested at the end of the day. This fact was corroborated by providing an exogenous supply of glucose or sucrose to samples harvested in early morning, which also showed a delayed senescence by maintaining higher levels of chlorophylls, antioxidants and phenolics. Our results suggest that starch accumulated during daylight delays senescence in broccoli and helps to maintain better postharvest quality and nutritional parameters.
Fil: Hasperué, Héctor Joaquín. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Chaves, Alicia Raquel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Criotecnología de Alimentos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Criotecnología de Alimentos; Argentina
Fil: Martinez, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina
description Broccoli heads were harvested at different times of the day (sunrise, midday and sunset) and then stored at 20 °C for 5 d. The samples harvested at sunset showed the lowest loss of colour and chlorophyll degradation, those picked at dawn had the highest degreening, whereas heads harvested at midday showed an intermediate behaviour. As broccoli shelf life is mainly determined by external appearance and surface colour, harvesting heads at the end of the day instead of in early morning can extend their shelf life by 1 d, when stored at 20 °C. Samples harvested at sunset also had the highest levels of total soluble and reducing sugars, antioxidants and phenolic compounds during storage. However, at harvest, samples obtained at different moments had the same levels of chlorophylls, soluble sugars, antioxidant and phenolics; whereas the starch content was clearly different among samples. Those harvested at dusk had higher starch levels than those harvested at sunset. We hypothesize that starch degradation produces single sugars whose presence delays senescence in samples harvested at the end of the day. This fact was corroborated by providing an exogenous supply of glucose or sucrose to samples harvested in early morning, which also showed a delayed senescence by maintaining higher levels of chlorophylls, antioxidants and phenolics. Our results suggest that starch accumulated during daylight delays senescence in broccoli and helps to maintain better postharvest quality and nutritional parameters.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/109789
Hasperué, Héctor Joaquín; Chaves, Alicia Raquel; Martinez, Gustavo Adolfo; End of day harvest delays postharvest senescence of broccoli florets; Elsevier Science; Postharvest Biology and Technology; 59; 1; 1-2011; 64-70
0925-5214
1873-2356
CONICET Digital
CONICET
url http://hdl.handle.net/11336/109789
identifier_str_mv Hasperué, Héctor Joaquín; Chaves, Alicia Raquel; Martinez, Gustavo Adolfo; End of day harvest delays postharvest senescence of broccoli florets; Elsevier Science; Postharvest Biology and Technology; 59; 1; 1-2011; 64-70
0925-5214
1873-2356
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925521410001791
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.postharvbio.2010.08.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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