Effect of different types of coating on quality and shelf Life of Kinnow

An investigation was conducted at Agriculture Lab, Department of Agriculture, D.A.V College, Abohar, Punjab during the academic year 2018 to study the effect of different types of coating on quality and shelf life of kinnow. The different coatings were Waxing, Polythene, Oil Coating, Waxing + Polythene and open air as a control were used for experimentation. The fruits were then kept at ambient temperature. The effect of different coatings on change in fruit length, change in fruit breadth, change in fruit weight, change in fruit volume and physiological loss in weight was observed. The different treatments showed variation in physiological and physical characters. Out of these five treatments, the treatment Polythene showed best result as compared to other treatments. The obtained results indicated that less decrease in fruit length, fruit breadth, fruit weight and fruit volume were recorded in fruits covering with polythene and maximum decrease in fruit length, fruit breadth and fruit volume were recorded in oil coated fruits after 28 days of storage. But in fruit weight maximum decrease was observed in wax coated fruits. Minimum physiological loss in weight was recorded in fruits covering with polythene and maximum physiological loss in weight was recorded in oil coated fruits after 28 days of storage.