SHELF LIFE ENHANCEMENT STUDIES IN GUAVA ( Psidiumguajava L . ) C V . SHWETA

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dc.contributor.advisorBrar, J.S.
dc.contributor.authorParambir Kaur
dc.date.accessioned2016-11-23T19:03:11Z
dc.date.available2016-11-23T19:03:11Z
dc.date.issued2016
dc.description.abstractThe fruits of guava are highly perishable in nature and require strategies to enhance post harvest life for extended fresh fruit market period. Therefore, the present investigations were carried out in guava cv. Shweta to explore the possibilities of storage under cold and ambient conditions with treatments of ethylene inhibitor, antioxidant and wax coating. The fruits of guava harvested at physiological maturity were subjected to the treatments of salicylic acid (100, 200, 300 ppm), ascorbic acid (1.0, 1.5, 2.0 %) and chitosan (0.5, 1.0, 1.5 %), packed in CFB boxes and stored under cold (6-8 oC temperature and 90-95 % RH) and ambient conditions. The fruits were analyzed for various physiological and biochemical parameters at weekly interval. Under both the storage conditions, all the treatments exhibited potential to maintain the post harvest life of fruits as compared to untreated fruits. However, salicylic acid 300 ppm followed by 200 ppm treatments registered higher potential to retain the fruit quality for longer period under both conditions. These were found effective in reducing the PLW, fruit spoilage and maintained the fruit firmness and quality attributes such as TSS, sugars, and palatability rating of fruits. The chitosan has also maintained the fruit quality but, discoloration of fruit surface lead to reduction in organoleptic value of fruits. The promising effects of these treatments showed that the winter season guava fruits can be stored up to 14th day under cold storage and up to 7th day under ambient condition without deteriorating the fruit quality. During prolonged storage these treatments seems to hold potential to maintain fruit quality.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/87305
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemSHELF LIFE ENHANCEMENT STUDIES IN GUAVA ( Psidiumguajava L . ) C V . SHWETAen_US
dc.subFruit Scienceen_US
dc.themeGUAV Aen_US
dc.these.typeM.Sc
dc.titleSHELF LIFE ENHANCEMENT STUDIES IN GUAVA ( Psidiumguajava L . ) C V . SHWETAen_US
dc.typeThesisen_US
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