Maturity at harvest and postharvest quality of summer squash

Autores
Massolo, Juan Facundo; Zarauza, Juan Manuel; Hasperué, Héctor Joaquín; Rodoni, Luis María; Vicente, Ariel Roberto
Año de publicación
2019
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this work was to evaluate the influence of harvest at maturity on the composition, quality, and postharvest life of zapallito squash (Cucurbita maxima var. zapallito). Fruit were harvested at three developmental stages – small, medium, and large, with 30, 70, and 90±10-mm diameter, respectively – and were stored at 0 and 5°C for 26 days and, then, at 20°C for 2 days. The following parameters were determined: respiration, firmness, color, chlorophyll content, carotenoids, sugars, acidity, phenolic compounds, antioxidants, decay, mass loss, and chilling injury (CI). Small light-colored squashes were more prone to dehydration and decay. Delaying harvest markedly reduced fruit carotenoid contents, acidity, and respiration rate; however, it did not affect firmness nor sugar content. Chlorophyll showed an increasing trend during fruit development. Small squashes had 100% higher levels of phenolic compounds and antioxidants than medium and large fruit, but were more sensitive to CI. No differences for CI susceptibility were observed between medium and large fruit. The quality of small, medium, and large squashes remained acceptable for 12, 19, and 26 days at 5ºC, respectively, plus 2 days at 20ºC.
O objetivo deste trabalho foi avaliar a influência da maturidade, à época da colheita, sobre a composição, a qualidade e a vida pós-colheita da abóbora “zapallito” (Cucurbita maxima var. zapallito). Os frutos foram colhidos em três estágios de desenvolvimento – pequeno, médio e grande, com diâmetros de 30, 70 e 90±10 mm, respectivamente – e foram armazenados a 0 e 5°C por 26 dias e, posteriormente, a 20°C por 2 dias. Determinaram-se os seguintes parâmetros: respiração, firmeza, cor, teor de clorofilas, carotenoides, açúcares, acidez, compostos fenólicos, antioxidantes, podridões, perda de massa e dano pelo frio (CI). As abóboras pequenas de cor clara foram mais propensas à desidratação e à podridão. O atraso da colheita reduziu acentuadamente o conteúdo de carotenoides, a acidez e a taxa de respiração da fruta; no entanto, não afetou a firmeza nem o teor de açúcar. Já a clorofila mostrou uma tendência crescente durante o desenvolvimento da fruta. As abóboras pequenas apresentaram níveis 100% maiores de fenólicos e antioxidantes do que as frutas médias e grandes, mas foram mais sensíveis ao CI. Não se observaram diferenças quanto à suscetibilidade ao CI entre as frutas médias e grandes. A qualidade das abóboras pequenas, médias e grandes permaneceu aceitável por 12, 19 e 26 dias a 5ºC, respectivamente, mais 2 dias a 20ºC.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
Laboratorio de Investigación en Productos Agroindustriales
Materia
Ciencias Agrarias
Química
Cucurbita maxima
Chilling injury
Cucurbits
Postharvest
Storage
Dano pelo frio
Cucurbitáceas
Pós-colheita
Armazenamento
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/122118

id SEDICI_09c4ac8cca74286dbdcf80acbe856d48
oai_identifier_str oai:sedici.unlp.edu.ar:10915/122118
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Maturity at harvest and postharvest quality of summer squashMaturidade à colheita e qualidade pós‑colheita da abóbora de verãoMassolo, Juan FacundoZarauza, Juan ManuelHasperué, Héctor JoaquínRodoni, Luis MaríaVicente, Ariel RobertoCiencias AgrariasQuímicaCucurbita maximaChilling injuryCucurbitsPostharvestStorageDano pelo frioCucurbitáceasPós-colheitaArmazenamentoThe objective of this work was to evaluate the influence of harvest at maturity on the composition, quality, and postharvest life of zapallito squash (Cucurbita maxima var. zapallito). Fruit were harvested at three developmental stages – small, medium, and large, with 30, 70, and 90±10-mm diameter, respectively – and were stored at 0 and 5°C for 26 days and, then, at 20°C for 2 days. The following parameters were determined: respiration, firmness, color, chlorophyll content, carotenoids, sugars, acidity, phenolic compounds, antioxidants, decay, mass loss, and chilling injury (CI). Small light-colored squashes were more prone to dehydration and decay. Delaying harvest markedly reduced fruit carotenoid contents, acidity, and respiration rate; however, it did not affect firmness nor sugar content. Chlorophyll showed an increasing trend during fruit development. Small squashes had 100% higher levels of phenolic compounds and antioxidants than medium and large fruit, but were more sensitive to CI. No differences for CI susceptibility were observed between medium and large fruit. The quality of small, medium, and large squashes remained acceptable for 12, 19, and 26 days at 5ºC, respectively, plus 2 days at 20ºC.O objetivo deste trabalho foi avaliar a influência da maturidade, à época da colheita, sobre a composição, a qualidade e a vida pós-colheita da abóbora “zapallito” (Cucurbita maxima var. zapallito). Os frutos foram colhidos em três estágios de desenvolvimento – pequeno, médio e grande, com diâmetros de 30, 70 e 90±10 mm, respectivamente – e foram armazenados a 0 e 5°C por 26 dias e, posteriormente, a 20°C por 2 dias. Determinaram-se os seguintes parâmetros: respiração, firmeza, cor, teor de clorofilas, carotenoides, açúcares, acidez, compostos fenólicos, antioxidantes, podridões, perda de massa e dano pelo frio (CI). As abóboras pequenas de cor clara foram mais propensas à desidratação e à podridão. O atraso da colheita reduziu acentuadamente o conteúdo de carotenoides, a acidez e a taxa de respiração da fruta; no entanto, não afetou a firmeza nem o teor de açúcar. Já a clorofila mostrou uma tendência crescente durante o desenvolvimento da fruta. As abóboras pequenas apresentaram níveis 100% maiores de fenólicos e antioxidantes do que as frutas médias e grandes, mas foram mais sensíveis ao CI. Não se observaram diferenças quanto à suscetibilidade ao CI entre as frutas médias e grandes. A qualidade das abóboras pequenas, médias e grandes permaneceu aceitável por 12, 19 e 26 dias a 5ºC, respectivamente, mais 2 dias a 20ºC.Centro de Investigación y Desarrollo en Criotecnología de AlimentosLaboratorio de Investigación en Productos Agroindustriales2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/122118spainfo:eu-repo/semantics/altIdentifier/issn/1678-3921info:eu-repo/semantics/altIdentifier/doi/10.1590/S1678-3921.pab2019.v54.00133info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:01:08Zoai:sedici.unlp.edu.ar:10915/122118Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:01:08.852SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Maturity at harvest and postharvest quality of summer squash
Maturidade à colheita e qualidade pós‑colheita da abóbora de verão
title Maturity at harvest and postharvest quality of summer squash
spellingShingle Maturity at harvest and postharvest quality of summer squash
Massolo, Juan Facundo
Ciencias Agrarias
Química
Cucurbita maxima
Chilling injury
Cucurbits
Postharvest
Storage
Dano pelo frio
Cucurbitáceas
Pós-colheita
Armazenamento
title_short Maturity at harvest and postharvest quality of summer squash
title_full Maturity at harvest and postharvest quality of summer squash
title_fullStr Maturity at harvest and postharvest quality of summer squash
title_full_unstemmed Maturity at harvest and postharvest quality of summer squash
title_sort Maturity at harvest and postharvest quality of summer squash
dc.creator.none.fl_str_mv Massolo, Juan Facundo
Zarauza, Juan Manuel
Hasperué, Héctor Joaquín
Rodoni, Luis María
Vicente, Ariel Roberto
author Massolo, Juan Facundo
author_facet Massolo, Juan Facundo
Zarauza, Juan Manuel
Hasperué, Héctor Joaquín
Rodoni, Luis María
Vicente, Ariel Roberto
author_role author
author2 Zarauza, Juan Manuel
Hasperué, Héctor Joaquín
Rodoni, Luis María
Vicente, Ariel Roberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Química
Cucurbita maxima
Chilling injury
Cucurbits
Postharvest
Storage
Dano pelo frio
Cucurbitáceas
Pós-colheita
Armazenamento
topic Ciencias Agrarias
Química
Cucurbita maxima
Chilling injury
Cucurbits
Postharvest
Storage
Dano pelo frio
Cucurbitáceas
Pós-colheita
Armazenamento
dc.description.none.fl_txt_mv The objective of this work was to evaluate the influence of harvest at maturity on the composition, quality, and postharvest life of zapallito squash (Cucurbita maxima var. zapallito). Fruit were harvested at three developmental stages – small, medium, and large, with 30, 70, and 90±10-mm diameter, respectively – and were stored at 0 and 5°C for 26 days and, then, at 20°C for 2 days. The following parameters were determined: respiration, firmness, color, chlorophyll content, carotenoids, sugars, acidity, phenolic compounds, antioxidants, decay, mass loss, and chilling injury (CI). Small light-colored squashes were more prone to dehydration and decay. Delaying harvest markedly reduced fruit carotenoid contents, acidity, and respiration rate; however, it did not affect firmness nor sugar content. Chlorophyll showed an increasing trend during fruit development. Small squashes had 100% higher levels of phenolic compounds and antioxidants than medium and large fruit, but were more sensitive to CI. No differences for CI susceptibility were observed between medium and large fruit. The quality of small, medium, and large squashes remained acceptable for 12, 19, and 26 days at 5ºC, respectively, plus 2 days at 20ºC.
O objetivo deste trabalho foi avaliar a influência da maturidade, à época da colheita, sobre a composição, a qualidade e a vida pós-colheita da abóbora “zapallito” (Cucurbita maxima var. zapallito). Os frutos foram colhidos em três estágios de desenvolvimento – pequeno, médio e grande, com diâmetros de 30, 70 e 90±10 mm, respectivamente – e foram armazenados a 0 e 5°C por 26 dias e, posteriormente, a 20°C por 2 dias. Determinaram-se os seguintes parâmetros: respiração, firmeza, cor, teor de clorofilas, carotenoides, açúcares, acidez, compostos fenólicos, antioxidantes, podridões, perda de massa e dano pelo frio (CI). As abóboras pequenas de cor clara foram mais propensas à desidratação e à podridão. O atraso da colheita reduziu acentuadamente o conteúdo de carotenoides, a acidez e a taxa de respiração da fruta; no entanto, não afetou a firmeza nem o teor de açúcar. Já a clorofila mostrou uma tendência crescente durante o desenvolvimento da fruta. As abóboras pequenas apresentaram níveis 100% maiores de fenólicos e antioxidantes do que as frutas médias e grandes, mas foram mais sensíveis ao CI. Não se observaram diferenças quanto à suscetibilidade ao CI entre as frutas médias e grandes. A qualidade das abóboras pequenas, médias e grandes permaneceu aceitável por 12, 19 e 26 dias a 5ºC, respectivamente, mais 2 dias a 20ºC.
Centro de Investigación y Desarrollo en Criotecnología de Alimentos
Laboratorio de Investigación en Productos Agroindustriales
description The objective of this work was to evaluate the influence of harvest at maturity on the composition, quality, and postharvest life of zapallito squash (Cucurbita maxima var. zapallito). Fruit were harvested at three developmental stages – small, medium, and large, with 30, 70, and 90±10-mm diameter, respectively – and were stored at 0 and 5°C for 26 days and, then, at 20°C for 2 days. The following parameters were determined: respiration, firmness, color, chlorophyll content, carotenoids, sugars, acidity, phenolic compounds, antioxidants, decay, mass loss, and chilling injury (CI). Small light-colored squashes were more prone to dehydration and decay. Delaying harvest markedly reduced fruit carotenoid contents, acidity, and respiration rate; however, it did not affect firmness nor sugar content. Chlorophyll showed an increasing trend during fruit development. Small squashes had 100% higher levels of phenolic compounds and antioxidants than medium and large fruit, but were more sensitive to CI. No differences for CI susceptibility were observed between medium and large fruit. The quality of small, medium, and large squashes remained acceptable for 12, 19, and 26 days at 5ºC, respectively, plus 2 days at 20ºC.
publishDate 2019
dc.date.none.fl_str_mv 2019
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