บทคัดย่องานวิจัย

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Postharvest peach weight loss, water content, and outer layer firmness.

Zhang, X.; Brusewitz, G. H.; Puchalski, C.;

International Agrophysics Year: 1996 Vol: 10 Issue: 2 Pages: 139-143 Ref: 11 ref.

1996

บทคัดย่อ

Postharvest peach weight loss, water content, and outer layer firmness.

Three peach cultivars were monitored during 9 days of storage to identify fruits with different amounts of weight loss and changes in firmness. The average daily whole fruit weight losses were 1.72, 2.19, and 2.22% in Garnet Beauty, Red Haven and Sentinal, respectively. After 9 days of storage, the water content of the outer layers of a fruit were less than at the centre. Firmness (slope of the force-deformation curve obtained during 1-mm compression) decreased significantly during the first 3 days of storage and continued to decrease, but by a smaller amount, thereafter. By eliminating the time variable, it was found that firmness decreased exponentially with weight loss (r2=0.79-0.88). Changes in water content and firmness of the outer layers appear to be good predictors of subsequent changes in the whole fruit.