Different bio-chemical changes at low temperature storage on chilling injury and storage life of commercial cultivars of mango Mangifera indica L.

Abstract

An experiment was conducted at Fruit Research Station, Sangareddy, Medak, Telangana to study the effect of low temperature storage on chilling injury and storage life of different commercial cultivars of mango (Mangifera indica L.) viz., Banganpalli, Dashehari, Peddarasam, Chinnarasam and Totapari stored at 8oC ± 1º C. The experimental design followed is completely randomized design with factorial concept with four replications per treatment.Various biochemical parameters like TSS, titratable acidity, ascorbic acid, reducing sugars, non reducing sugars and electrolyte leakage. The highest T.S.S. (15.35) was recorded in mango cv. Peddarasam, Among all interactions, the highest TSS (16.75) was recorded on 55th day with the mango cv. Peddarasam. The lowest acidity (0.70) was recorded in mango cv. Chinnarasam and the highest acidity (1.00) was recorded in cv. Totapari. The lowest brix acid ratio (10.04) was noticed in mango cv. Totapari. The highest (23.53) was recorded in mango cv. Peddarasam. The treated fruits were significantly influenced by low temperature with lowest reducing sugars (2.11) recorded in mango cv. Totapari. The highest total sugars (6.51) were recorded in mango cv. Peddarasam. The lowest total sugars (4.40) were recorded in mango cv. Totapari. The treated fruits differed significantly with highest vitamin-C (17.07) was recorded in mango cv Peddarasam while the lowest vitamin-C (9.67) recorded in mango cv. Banganpalli. The treated fruits differed significantly with lowest electrolyte leakage (13.85) recorded in mango cv. Totapari.