Cold quarantine responses of blood oranges to postharvest hot water and hot air treatments

Schirra, M.; Mulas, Maurizio; Fadda, Angela; Cauli, E.

doi:10.1016/j.postharvbio.2003.09.002

Cited by 68 publications

(54 citation statements)

References 23 publications

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“…Heat treatment is a method increasingly used in postharvest handling of fruits; it is a safe alternative to chemical treatments as it can impair mould development [2,3]. The application of a heat treatment to control fruit diseases was reported for the first time in 1922 [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of hot air treatment on postharvest quality of ‘cat Hoa loc’ mangoes

Hoa¹,

Hien²,

Self³

et al. 2010

Fruits

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-Introduction. Vietnam is among the world's top 20 mango producing countries. In this country, the 'cat Hoa loc' variety is predominant, with 17 692 ha under cultivation with an annual production of 58 471 t; it is considered to be the best mango variety in the Mekong delta. Ripening of the fruit is typically expressed by a skin colour change from green to bright yellow. This variety is highly prized by local and foreign consumers, but subject to different disorders, especially fruit fly infestations. Heat treatment is a safe alternative to chemical treatments. It can impair mould development and control fruit infestation by destroying fruit fly eggs and larvae. It may have a greater or lesser effect on fruit physiology. If the treatment temperature and duration are incorrectly handled, skin burns may result and the internal quality of the fruit may be affected. Materials and methods. 'Cat Hoa loc' mangoes at the commercially mature stage were subjected to hot air treatment (47°C and 90% RH) of different durations [(0, 20, 40, 60, 90, 120 and 180) min from the fruit core attaining the temperature]. After treatment, the fruits were stored at 25°C and quality parameters evaluated (weight loss, peel and flesh colour, percentages of fruit with burns and rots, burn index, ripening percentage, firmness, TSS, TA, vitamin C content, pH, reducing and total sugars, and taste test). Results and discussion. For the 'cat Hoa loc' variety, heat treatment accelerated ripening of the fruit in the initial storage period and colour changes occurred more quickly. However, after 7 days' storage, the difference in Hue value between the treated and control fruits disappeared. Hot air treatment at 47°C of different durations [(20 to180) min] did not affect the internal coloration changes of 'cat Hoa loc' mangoes, but did affect the flesh firmness. We found that, after 3 d, hot air treatment at 47°C led to significantly faster weight loss than control fruits but this difference disappeared after 7 d. Total sugar content was not affected by the treatment, but titratable acidity decreased more quickly in treated fruits. Vietnam / Mangifera indica / fruits / postharvest control / heat treatment / qualityEffets du traitement thermique sur la qualité post-récolte de mangues 'cat Hoa loc'.Résumé -Introduction. Le Vietnam est parmi les 20 premiers pays producteurs de mangues au monde. Dans ce pays, la variété 'cat Hoa loc' est prédominante (17 692 ha cultivés et production annuelle de 58 471 t) ; elle est considérée comme la meilleure variété de mangue dans le delta du Mékong. La maturation du fruit s'exprime généralement par un changement de couleur de la peau qui vire du vert au jaune vif. Cette variété est très appréciée par les consommateurs locaux et étrangers, mais elle est sujette à divers troubles, notamment à des infestations par la mouche des fruits. Le traitement thermique est une bonne alternative aux traitements chimiques. Il peut altérer le développement des moisissures et contrôler l'infestation des fruits par la des...

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Section: Introductionmentioning

confidence: 99%

Effects of hot air treatment on postharvest quality of ‘cat Hoa loc’ mangoes

Hoa¹,

Hien²,

Self³

et al. 2010

Fruits

View full text Add to dashboard Cite

show abstract

“…Among quality traits is important to point out that thermotherapy may build-up volatile compounds as shown in 'Tarocco' (Schirra et al, 2002b) and other bloody oranges (Mulas et al, 2001;Schirra et al, 2004;2005a). Increases in endogenous ethanol and acetaldehyde production that change fruit taste have been reported in this fruits, but studies for a complete definition of gas exchange during and after thermotherapy are in a phase of development .…”

Section: Main Effects On Quality Of Commoditiesmentioning

confidence: 99%

Combined Effects of Fungicides and Thermotherapy on Post-Harvest Quality of Horticultural Commodities

Mulas¹

2011

Fungicides - Beneficial and Harmful Aspects

Self Cite

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“…Estos resultados concuerdan con un estudio realizado por Alférez et al (2005a), que puso de manifiesto que se producía una mayor pérdida de agua en frutos de naranjas del mutante 'Pinalate' con respecto a su parental 'Navelate' durante el almacenamiento en frío a pesar de que este mutante es menos susceptible a desarrollar 'daños de frío'. Además, concuerdan con resultados previos que mostraron que los tratamientos de calor aumentan la pérdida de agua y reducen la incidencia de 'daños de frío ' (McDonald et al, 1993a;Schirra et al, 2004;Erkan et al, 2005). Por tanto, la pérdida de agua no es un factor crítico en el desarrollo de síntomas de dicha alteración fisiológica como se había sugerido originalmente (Purvis, 1984;Cohen et al, 1994).…”

Section: Causas Y Morfologíaunclassified

“…Sin embargo, en nuestro caso este gen no parece tener un papel relevante en el efecto beneficioso del curado ni tampoco está asociado al daño. Aunque en otras variedades de frutos cítricos como pomelos se ha comprobado que la aplicación de ceras reduce la incidencia de 'daños de frío' (Wild, 1993;McDonald et al, 1993b;Dou, 2004;Bajwa y Anjum, 2007), los resultados obtenidos en este trabajo sugieren que los cambios en la expresión de genes implicados en la biosíntesis de ceras epicuticulares no están relacionados con el efecto beneficioso del curado y apoyan la idea de que el estrés hídrico no es un factor crítico en el desarrollo de 'daños de frío' en los frutos cítricos (McDonald et al, 1993b;Schirra et al, 2004;Erkan et al, 2005;Alférez et al, 2005a).…”

Section: Metabolismo De Lípidosunclassified

Estudio transcriptómico de los mecanismos implicados en la tolerancia inducida por el curado al daño de frío y por el etileno al colapso de la corteza en los frutos cítricos.

Ortiz¹,

Aurelia²

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Cold quarantine responses of blood oranges to postharvest hot water and hot air treatments

Cited by 68 publications

References 23 publications

Effects of hot air treatment on postharvest quality of ‘cat Hoa loc’ mangoes

Effects of hot air treatment on postharvest quality of ‘cat Hoa loc’ mangoes

Combined Effects of Fungicides and Thermotherapy on Post-Harvest Quality of Horticultural Commodities

Estudio transcriptómico de los mecanismos implicados en la tolerancia inducida por el curado al daño de frío y por el etileno al colapso de la corteza en los frutos cítricos.

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