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Title: Effect of ethylene action inhibitor and Ethylene absorbent on the postharvest life and quality of guava
Authors: S, Vijay Rakesh Reddy
Guide/Chairperson: D V, Sudhakar Rao
Keywords: ethylene
Ethylene absorbent
postharvest life
Issue Date: 2011
Year of Submission: 2011
Abstract: Guava (Psidium guajava L.) is one of the important fruits of tropics, also known as “Apple of tropics”. Being a climacteric fruit, it is highly perishable in nature. Due to faulty or improper handling during transportation and storage, 25-30% of the produce goes waste. Hence to reduce these loses and to extend the shelf life of the fruits a study was conducted on effect of ethylene action inhibitor and ethylene absorbent on the postharvest life and quality of guava (Psidium guajava L.) cv. Lucknow -49” at Division of Post Harvest Technology, IIHR, Bangalore during 2010-11. Guava fruits were pretreated with three treatments viz., ethylene action inhibitor (1-MCP 500 ppb), ethylene absorbent (KMnO4 10 g/kg) and control. After the pre-treatments, fruits were stored at three different temperatures of 8, 12 and room temperature (22-28 ºC). 1-MPC treatment significantly reduce the respiration rate, ethylene production and delayed the ripening irrespective of the storage temperatures. However, KMnO4 treatment was helpful in extending the storage life of guava fruits only marginally. At room temperature (RT) the 1-MPCtreatment extended the postharvest life of guava fruits to 10 days compared to the control fruits that couldn’t be stored for more than 5days. The storage life of 1-MPC treated guava fruits could be further extended to 30 days when stored at 12 ºC compared to 15 days in un-treated fruits. At 8 ºC, through 1-MPC treated fruits stored 12 ºC showed maximum firmness, total soluble solids and higher retention of ascorbic acid till the end of ripening compared to control and treatments.
URI: http://www.erepo.iihr.ernet.in/handle/123456789/485
University in which they received their degree: University of Agricultural Sciences, Bangalore
Degree Level: M.Sc

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