Color parameters of aril dried by different methods compared to aril fresh are shown in Table 2. Overall, when compared with fresh aril, a smaller decrease in L values of the three methods and a smaller decrease in a values of LRH and HA than FIR method. The total color difference ΔE, which is combination of parameters L, a, b values, is a colorimetric parameter extensively use to characterize the variation of colors in food during processing.