บทคัดย่องานวิจัย

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Volatiles emitted by 'Royal Gala' apples following sequential atmosphere storage.

Mattheis, J.; Buchanan, D.; Fellman, J.;

Acta Horticulturae Year: 1998 Issue: No. 464 Pages: 201-205 Ref: 16 ref.

1998

บทคัดย่อ

Volatiles emitted by 'Royal Gala' apples following sequential atmosphere storage.

Royal Gala apple fruits segregated at harvest according to ground colour were stored in controlled atmosphere (CA) environments in which O2 concentrations were increased monthly. After 4 months' storage, periodic increases in O2 concentration resulted in treatments ranging from continuous storage at 1 kPa O2 to storage in 4 kPa O2. CO2 in all treatments was static at 2 kPa throughout the experiment. Ester emission after 4 months' storage plus 7 days ripening at 20 deg C was dependent on storage O2 concentration. Higher O2 concentrations resulted in higher ester emission after storage, but ester emissions by apples from all CA treatments were considerably lower than emissions at harvest or by regular atmosphere-stored fruits. CA storage also reduced alcohol, aldehyde and acetate emissions. Loss of fruit firmness and titratable acidity increased with higher storage O2 concentrations. The additional loss of firmness coupled with a lack of any considerable enhancement of ester synthesis suggests the

se CA treatments are no better than continuous storage at 1 kPa O2.