ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Respiration and storage potential in Norwegian-grown sweet cherries.

Sekse, L.;

Acta Horticulturae Year: 1996 Issue: No. 410 Pages: 357-362 Ref: 8 ref.

1996

บทคัดย่อ

Sweet cherries are fruits with a short shelf life, resembling most other non-climacteric fruits. In order to improve the marketing quality of sweet cherries grown in Norway, these problems have been the focus of research work at Ullensvang Research Station. Studies revealed the main causes of postharvest fruit rotting and weight loss. Comprehensive studies of quality loss of sweet cherries during storage were carried out in which particular attention was given to postharvest respiration and storage potential. The studies revealed a close correlation between postharvest storage temperature, respiration (measured as net evolution of carbon dioxide per kg of fruit) and the occurrence of rotting fruits. Estimations of storage potential for sweet cherries, based on net evolution of carbon dioxide, were developed. Regardless of the storage temperature used, a pronounced increase in rotting occurred when carbon dioxide production reached 6-8 g kg-1 h-1. In most cases the primary rotting was caused by i

nfections of Botrytis. To avoid untenable quality loss, the storage potential estimate, measured as net amount of evolved carbon dioxide, was set to 5 g kg-1 h-1. Storage potential estimates differed little between cultivars. Introducing better cooling routines to Norwegian-grown sweet cherries has increased their postharvest shelf life from 2-3 days in the early 1980s to 6-10 days in 1993. Implementing further improved postharvest handling routines and marketing strategies to improve the marketing quality of sweet cherries is discussed.