Effect of some chemical treatments on the storage capacity of two fruit apple samples: Golden Delicious and Starking Delicious c. v.


Abstract in English

The study was conducted at the Horticulture Department, Faculty of Agriculture, University of Damascus, during the season of 2002 and 2003, in order to study the effect of dipping apple fruits for the tow apple sorts for 5 minutes with some chemical substances, α-Tocopherol (0.25%) and Prohexadion-Calcium (1%). The fruits were stored at AlMaze cold storage unit under the normal storage condition (0-1ºC, 93% R.H.), to find out some effects of these treatments on some physical, chemical, and physiological changes of treated and untreated apple fruits, especially: fruit weight, firmness, starch, and soluble solids content. Analysis of variance indicated a significant difference in storage ability of both fruit apple samples in case of dipped fruits in Procalcium solution 1% compared with control fruits. The tocopherol treated fruits were sometimes significant. The results showed a reduction in fruit weight in case of treated sample during cold storage time. Fruit firmness was significantly better in both treatments of procalcium 1% and tocopherol 0.25%compared with control, and reducing physiological disorders during cold storage period.

References used

Backmann, A., Steif, J. and F. Bangerth 1994: Einfluss von CA- bzw. ULOLagerbedingungen auf Merkmale der Fruchqualität und Reife bei präklimakterisch und klimakterisch geernteten Äpfeln. I. Auswirkung auf Farbe, Fruchtfleischfestigkeit, Säure und löslische Trockensubstanz. Gartenbauwissenschaft 59, 252-257
Bertschinger, L., Stadler, W. and L. Lemmenmeier 1998: First results from testing new Vitamin E formulations for improving Red Color formation and Scab regulation in Swiss Apple orchards. In: Nga, G. and Scmitz, M. (eds.): Antioxidants in higher plants. Shaker Verlag Aachen, 220-231
Biacs, P. A., Czinkotai, B. and A. Hoschke 1992: Factors affecting stability of colored substances in paprika powders. American Chemical Socity 40, 363-367

Download