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. 2021 Apr 3;2021:8870001. doi: 10.1155/2021/8870001

Table 3.

Drying conditions and results of drying time, moisture content, reducing sugars, vitamin c browning index, colour parameters, and effective moisture diffusivity for dried tiger nuts.

State of tiger nut T (°C) DT (min) MC (% d.b) RS (mg/100 g) Vit C (mg/100 g) BI (Abs unit) L a b D eff (m2/s) E − 10
Halved 60 960 10.26 125.79 23.58 0.19 56.97 2.37 19.92 6.40
Halved 50 1080 16.02 154.89 24.09 0.21 50.81 2.93 18.86 6.77
Whole 70 960 8.38 133.11 17.93 0.18 53.12 3.66 19.57 8.42
Pulverized 70 780 0.84 157.01 22.9 0.21 53.9 1.6 17 41.59
Whole 50 1080 20.4 148.61 18.62 0.21 52.51 1.53 20.33 5.67
Halved 70 900 6.71 158.18 22.96 0.19 52.07 2.85 18.53 9.33
Pulverized 50 1080 4.53 142.6 23.08 0.24 55.53 4.16 19.81 31.88
Pulverized 60 960 1.49 136.24 22.78 0.25 53.9 1.6 17 36.0
Whole 60 960 13.25 140.12 18.43 0.22 52.51 2.42 19.1 6.00

T: air temperature; DT: drying time; MC: moisture content; RS: reducing sugars; Vit C: vitamin C; BI: nonenzymatic browning index; L∗: whiteness; a∗: redness; b∗: yellowness; Deff: effective moisture diffusivity.