ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

The Storability of Organic Apple

Roth, E, Kovacs, E, Felfoldi, J, and Mersz, P.

Australasian Postharvest Conference (Adelaide, Australia), 23-27 September 2001. (Proceedings in CD., Session: 6. Pre/Postharvest, P9/ pp. 1-6.).

2001

บทคัดย่อ

I studied the effect of the growing system (integrated compare with organic) on the storage ability of apple cultivars Idared, Liberty, Pilot and Pinova. Fruits were stored at 2-4C, 98-99%relative humidity. Firmness, activity of ƒภ-galactosidase and polygalacturonase enzymes were examined and also an analysis of ion-leakage was carried out. Also the deterioration (%) and changes in ethylene concentration during storage were monitored. The firmness decreased significantly during storage and the loss of weight of apples was monotonous. Most of the cases the organic apple seemed to be firmer either at harvest and in February. There was no difference between the organic and integrated apples in the activity of ƒภ- galactosidase and polygalacturonase enzymes at harvest but this difference has increased after 5 months storage. The activity of ภ-galactosidase enzyme was usually higher in integrated samples, while opposite tendency was observed in the activity of polygalacturonase enzymes during storage. There was a big difference between the cultivars in deterioration and it was higher in organic samples in all cases.