Anil KumarBajaj, Kashish2024-01-082024-01-082023Bajaj, Kashish (2023). Effect of edible coatings and lemongrass oil on postharvest life and quality of Kinnow mandarin (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.https://krishikosh.egranth.ac.in/handle/1/5810205962The present study, "Effect of edible coatings and lemongrass oil on postharvest life and quality of Kinnow mandarin” was conducted in the Department of Fruit Science, Punjab Agricultural University, Ludhiana. Kinnow fruits were harvested at optimal maturity and were divided into requisite lots for further handling. The fruits were given different treatments viz. Guar gum (0.5 and 1.0 %), xanthan gum (0.5 and 1.0 %) alone, and their combinations with lemongrass oil (1.0 %). The uncoated fruits were used as a control. The fruits were stored at 5-7 °C and 90-95 % RH. The fruits were tested for various physical, biochemical, and enzymatic attributes on the 0, 30, 45, 60, and 75 days of storage. The results revealed that the fruits coated with the composite coatings of guar gum 1.0 % + lemongrass oil 1.0 % and Xanthan gum 1.0 % + lemongrass oil 1.0 % can be stored for 75 days under low temperatures with minimum spoilage and weight loss in contrast to uncoated fruits. Furthermore, the coated fruits also maintained quality attributes such as TSS, sugars, ascorbic acid, carotenoids, and flavonoids, along with higher enzymatic activities. These treatments seem to hold promise in extending the shelf-life and marketability of Kinnow fruits under cold storage.EnglishThesis