3. Results and discussion
3.1. Effects of curing treatment on flesh colour of intact potato, slices colour and quality of fresh cut potato
Curing is a practice in potato and food industry to cure the potato skin periderm after harvest and prevent decay loss during storage. Here, the effects of postharvest curing treatment on fresh-cut potatoes were investigated. The flesh colour of intact potato and juice colour were significantly affected by curing treatment compared to the control stored at conventional storage temperature (Figs. 1A,C and 3B). Among three colour indexes (colour L, a, b), potato flesh colour L∗ and a∗ values were significantly changed by the curing treatment. Higher “L” ( Fig. 1A) and lower “a” value ( Fig. 1C) and relative stable “b” colour ( Fig. 1E) in the 10 days-treated potato tuber flesh indicated that curing temperature increased brightness of flesh colourcolour significantly.