Abstract
The efficacy of chemical dips and different storage condition, alone and in combination were imposed in freshly harvested litchi fruit to investigate the changes of bio-chemical composition of fruits at regular interval for a certain period of storage. The pre-cooled litchi fruits after disinfectant were dipped for 60 seconds in lecithin (0.5% & 1%), Hot water, HCl (3%) with hot water, CaCl2 (1% & 2%), CaSO4 (1% & 2%), wax emulsion (5% & 10%), CaNO3 (0.5% & 1%), Chitosan (1% & 2%) and Kaolin (1% & 2%). The treated fruits were stored at room temperature as well as at 4°C & 90% R.H and the quality attributes were assessed at 2, 4, 6 and 8 days interval. Calcium nitrate @ 1% under refrigerated conditions recorded maximum ascorbic acid (54.50 mg/100g pulp), fruit firmness (1.75 kg cm-2) and the lowest acidity (0.42%). Total soluble solids (18.17°B), total sugar (11.27%) and polymeric colour retention with high anthocyanin content (48.94 mg/100g pulp) in peel was found in treated fruits with calcium chloride @1% at 4°C & 90% R.H even after 8 days of storage.
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