บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Studies on the physio-chemical properties of postharvest sugar apple.

Tsay, L. M.; Wu, M. C.;

Acta Horticulturae Year: 1990 Issue: No. 269 Pages: 241-247 Ref: 11 ref.

1990

บทคัดย่อ

Studies on the physio-chemical properties of postharvest sugar apple.

Annona squamosa fruits were harvested during Sep. and Oct. and stored at 28 deg (ambient temperature), 20 deg or 16 deg C. Although ethylene evolution rates were quite low (<1.5 micro l kg-1 h-1), the appearance of maximal rates coincided with fruit ripening and softening. The abscisic acid content of fruits increased from 16 ng/g FW at harvest to 455 ng/g FW in ripe fruit. The optimal conditions for the ripening-related enzymes (invertase, pectin esterase, protease and polyphenoloxidase) were determined. The activity changes of these enzymes after harvest were also measured. The L-ascorbic acid content remained stable in fruits stored at 16 deg but decreased in fruits stored at higher temperatures.