EFFECTS OF COATINGS ON FRUIT-QUALITY OF AMASYA APPLES

Apples were coated with different concentrations of Semperfresh(TM) just after harvest to determine the effect of this coating on the shelf-life and quality criteria of apples. Treated apples showed a delay in the change of firmness, titrateable acidity, vitamin C content soluble solid content and weight loss compared to untreated ones. Apples obtained from cold storage (0-1 degrees C and 90% RH) were coated with three commercial coatings; Semperfresh(TM) (10 g/L), Fomesa(TM) and Jonfresh(TM) to compare the efficiency of these coatings on quality criteria and poststorage-life of apples. All of the coatings were effective in reducing the rate of weight, ascorbic acid, colour and firmness change and in increasing post storage life. There was not much quality difference in coated fruits for different kinds of coatings. (C) 1995 Academic Press Limite