Artículo
Effect of heat treatment on strawberry fruit damage and oxidative metabolism during storage
Fecha de publicación:
05/2006
Editorial:
Elsevier Science
Revista:
Postharvest Biology and Technology
ISSN:
0925-5214
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Strawberries (Fragaria × ananassa Duch., cv. Selva) were heat-treated in an air oven (45 °C, 3 h). After treatment, the fruit were stored at 0 °C for 0, 7 or 14 d, and then held for 2 d at 20 °C. Respiration rate, hydrogen peroxide level, potassium leakage, antioxidant capacity, ascorbic acid, superoxide dismutase (SOD), ascorbate peroxidase (APX) and pyrogallol peroxidase (POD) activities were measured. Heat-treated fruit showed lower decay and less tissue damage than control fruit as judged by changes in ion leakage, respiration rate and pyrogallol peroxidase (POD). Heat-treated fruit also presented lower levels of H2O2 than control fruit during storage. In addition, antioxidant capacity was higher in heat-treated fruit both after 1 d at 20 °C or 7 d at 0 °C. Ascorbate peroxidase (APX) and superoxide dismutase (SOD) activity were not affected immediately after the treatment. However, higher activity was found in heat-treated fruit during storage, indicating that the heat treatment produced changes in the oxidative metabolism of the fruit. Interestingly, the main differences were not observed immediately after the treatment but during the storage. The differential responses observed in the case of heat-treated fruit during storage could protect the fruit against reactive oxygen species generated during senescence or pathogen attack. © 2006 Elsevier B.V. All rights reserved.
Palabras clave:
ANTIOXIDANT
,
ASCORBATE
,
FRAGARIA × ANANASSA
,
PEROXIDASE
,
POSTHARVEST
,
ROS
,
SOD
Archivos asociados
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Colecciones
Articulos(CIDCA)
Articulos de CENTRO DE INV EN CRIOTECNOLOGIA DE ALIMENTOS (I)
Articulos de CENTRO DE INV EN CRIOTECNOLOGIA DE ALIMENTOS (I)
Articulos(IIB-INTECH)
Articulos de INST.DE INVEST.BIOTECNOLOGICAS - INSTITUTO TECNOLOGICO CHASCOMUS
Articulos de INST.DE INVEST.BIOTECNOLOGICAS - INSTITUTO TECNOLOGICO CHASCOMUS
Articulos(INFIVE)
Articulos de INST.DE FISIOLOGIA VEGETAL
Articulos de INST.DE FISIOLOGIA VEGETAL
Citación
Vicente, Ariel Roberto; Martinez, Gustavo Adolfo; Chaves, Alicia Raquel; Civello, Pedro Marcos; Effect of heat treatment on strawberry fruit damage and oxidative metabolism during storage; Elsevier Science; Postharvest Biology and Technology; 40; 2; 5-2006; 116-122
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