บทคัดย่องานวิจัย

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Physiological breakdown in vapor heat-treated 'Carabao' mango.

Esguerra, E. B.; Brena, S. R.; Reyes, M. U.; Lizada, M. C. C.;

Acta Horticulturae Year: 1990 Issue: No. 269 Pages: 425-434 Ref: 11 ref.

1990

บทคัดย่อ

Physiological breakdown in vapor heat-treated 'Carabao' mango.

Physiological and physicochemical changes in Carabao mango fruits subjected to vapour heat treatment (VHT) for Dacus dorsalis [Bactrocera dorslia] disinfestation at a pulp temperature of 46 deg C for 10 min. were investigated. VHT is the accepted quarantine treatment for mangoes exported to Japan. VHT induced internal breakdown in the inner mesocarp of ripe fruits which was characterized by the presence of white, starchy, tough lesions, which, in severe cases, was accompanied by a fermented odour. The incidence and severity of this VHT-induced disorder depended upon growing area and maturity of the fruit at harvest. VHT did not alter the rate of ripening nor the overall quality of the fruit at the table ripe stage. However, a greater proportion of treated fruits attained a full yellow peel colour than non-treated fruits. Internal breakdown appeared to be induced by VHT via a depletion of the internal oxygen levels in the fruit.