Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)

Loss of sugars contributes to accelerate postharvest senescence of broccoli. Several treatments have been developed to delay senescence, but in many cases their effects on sugar metabolism were not analyzed. We studied the effect of harvest at different times of day (08:00, 13:00 and 18:00 h) and of...

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Detalles Bibliográficos
Autores principales: Hasperué, Héctor Joaquín, Lemoine, María Laura, Chaves, Alicia Raquel, Martínez, Gustavo Adolfo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Ingeniería
invertase
sucrose synthase
β-amylase
senescence
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102514
https://ri.conicet.gov.ar/11336/31241
http://ojs.tsv.fi/index.php/AFS/article/view/8576
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102514
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Ingeniería
invertase
sucrose synthase
β-amylase
senescence
spellingShingle Ciencias Exactas
Ingeniería
invertase
sucrose synthase
β-amylase
senescence
Hasperué, Héctor Joaquín
Lemoine, María Laura
Chaves, Alicia Raquel
Martínez, Gustavo Adolfo
Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
topic_facet Ciencias Exactas
Ingeniería
invertase
sucrose synthase
β-amylase
senescence
description Loss of sugars contributes to accelerate postharvest senescence of broccoli. Several treatments have been developed to delay senescence, but in many cases their effects on sugar metabolism were not analyzed. We studied the effect of harvest at different times of day (08:00, 13:00 and 18:00 h) and of several postharvest treatments as heat treatment (HT), modified atmosphere (MA) and 1-methylcylcopropene (1-MCP) on sugar levels and activities of enzymes related to sucrose and starch degradation. Harvesting at the end of day delayed the loss of chlorophylls and caused the lowest decrement in sugars, although no differences in invertase, sucrose synthase and β-amylase activities were detected among samples. Treatments of MA and 1-MCP caused a lower loss of glucose and fructose, while HT caused a lower decrement of sucrose. Treated samples maintained higher levels of chlorophylls. The treatments reduced the activity of invertase and sucrose synthase and induced higher levels of β-amylase activity. Harvesting at the end of day and performing simultaneously a MA treatment could be a good combination to maintain the green color of the inflorescence and sugar levels during postharvest of broccoli.
format Articulo
Articulo
author Hasperué, Héctor Joaquín
Lemoine, María Laura
Chaves, Alicia Raquel
Martínez, Gustavo Adolfo
author_facet Hasperué, Héctor Joaquín
Lemoine, María Laura
Chaves, Alicia Raquel
Martínez, Gustavo Adolfo
author_sort Hasperué, Héctor Joaquín
title Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
title_short Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
title_full Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
title_fullStr Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
title_full_unstemmed Effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>Brassica oleracea</i> var. <i>italica</i>)
title_sort effect of time of day for harvest and postharvest treatments on the sugar metabolism of broccoli (<i>brassica oleracea</i> var. <i>italica</i>)
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/102514
https://ri.conicet.gov.ar/11336/31241
http://ojs.tsv.fi/index.php/AFS/article/view/8576
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