EFFECTS OF DIFFERENT POSTHARVEST TREATMENTS AND PACKING ON QUALITY AND SHELF LIFE OF MANGO

Abstract

The experiment was carried out at the Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka. The experiment was laid out in a Completely Randomized Design with three replications. The present research was conducted on the aspect of shelf life and quality of mango through two variety and eight postharvest treatments. Two important varieties of mango namely, V = Langra and V 2 = Lakhanbhog were assigned to different post-harvest treatments, e.g. T = control, T 1 = hot water dips, T 2 = calcium chloride dips, T ii 3 1 = sodium metabisulphite, T = citric acid dips, T 5 = bamboo baskets, T = plastic crates having mango wrapped with tissue paper and T 7 6 = plastic crates having mango without wrapping were used in the present study. Results revealed that the minimum changes in firmness (1.36, 2.48, 3.37, 4.01 and 5.01 at 3 rd , 6 th , 9 th , 12 th and 15 th days of observation respectively), minimum TSS contents (12.45%, 17.59%, 21.66% and 23.59 at 3 rd , 6

day of harvest, respectively) and the longest shelf life (15.67 days) was observed in V 1 treated with V 1 T treatment. The higher vitamin C contents (28.49, 26.42 and 23.47 mg/100g at 3 rd 1 , 6 th and 9 th day of harvest, respectively) was found in V treated with V 1 T 4 treatment. The better performance was observed as Langra, treated with hot water dips, packaging materials as plastic crates, wrapping with tissue paper for long term storage quality control, transportation and marketing.