Determination of mechanical injury and effects of bruising on the postharvest quality of cantaloupes.
Halloran, N.; Kasim, M. U.; Cagiran, R.;
Acta Horticulturae Year: 1999 Issue: No. 492 Pages: 105-111 Ref: 11 ref.
1999
บทคัดย่อ
Cantaloupe melons were examined by computerized tomography (CT) to obtain images of the extent to which they are subject to mechanical injury during or after the harvest period. Fruits (cv. Galia F1 cv.) were dropped from a height of 50 cm to simulate poor handling techniques, then stored at 2 deg C and 85-90% RH. CT images were obtained immediately after harvest and after a 35-day storage period. Additional studies included determination of weight loss, infection rate, total soluble solids, titratable acidity, fruit firmness and pectin esterase activity at weekly intervals during cold storage. Results show that mechanical injury and senescence can be observed by CT, a non-destructive inspection technique. The other measurements showed that mechanical injury, not withstanding its effects on texture, causes increases in fruit metabolic activity, PE activity, fruit firmness, acidity and TSS values. There were no significant differences with respect to weight loss and infection rate between damaged
and control fruits.