ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Controlled atmospheres extend the storage life of 'Niitaka' pear fruit.

Yang, Y. J.; Lee, E. J.;

Postharvest Horticulture Series - Department of Pomology, University of California Year: 1997 Issue: No. 16 Pages: 291-297 Ref: 11 ref.

1997

บทคัดย่อ

Japanese pear [Pyrus pyrifolia] (cv. Niitaka) fruits were harvested in Chonan, Korea Republic, in November 1996 and 1997 and stored in various controlled atmosphere (CA) storage conditions. Firmness retention was best in 3% CO2 + 1.2% O2. Soluble solids content and titratable acidity changed little during storage in 1.2% CO2 + 1.2% O2. Vitamin C [ascorbic acid] content was reduced by high O2 concentrations while CO2 had little influence. Respiratory activity was least in 1.2% CO2 + 1.2% O2. Higher O2 concentrations (3-20%) increased acetaldehyde and ethanol production. During 90 days' storage of fruits from the first season, no skin blackening and no defects were found in combinations of 1.2 or 3% CO2 with 1.2 or 3% O2, while partial symptoms of skin blackening were observed after 22 days' storage in 3% CO2 + 20% O2. In fruits from the second season, initial colour and quality were maintained in 1.2% CO2 + 1.2% O2 and in 1.2% CO2 + 3% O2 during 210 days' storage. In a pilot CA system (2.5 t/room

) quality retention was better in 1% CO2 + 4% O2 than in 1% CO2 + 16% O2.