تاثير نوع بسته بندي و پرمنگنات پتاسيم بر كيفيت و عمر انبارماني سه رقم سيب در سردخانه

Effect of Packaging and Potassium Permanganate on Quality and Shelf life of Apples in Cold Storage

In order to study the removal of ethylene on the storage of apple, an experiment was conducted using the completely randomized factorial experimental design in Agricultural Research Center of West Azarbijan. The first factor was types of varieties, in 3 levels including Golden and Red Delicious and Jonathan. The second factor was types of packaging in 5 levels including Wooden box, plastic box, plastic box with paper impregnated with potassium permanganate, plastic box with trays and plastic box with trays and potassium permanganate. The third factor was period of storage in 5 levels of 5 month and in 3 replicates. The analysis of the results showed that the effects of type of varieties, packaging and period of storage on quality factors were significant. Mean squares also showed that maximum amount of firmness and maximum brix belonged for Golden and Red Delicious respectively and maximum amount of acidity and minimum pH belonged to Jonathan variety. During the storage also the amount of brix, pH and weight loss were increased and TA. and firmness were decreased. The analysis of results of packaging showed that maximum amount of the weight loss and minimum amount of the firmness belonged to wooden box and minimum amount of the weight loss and maximum amount of the firmness belonged to plastic box with trays and potassium permanganate as ethylene absorbent.