Skip to main content
. 2021 Jul 31;7(8):e07702. doi: 10.1016/j.heliyon.2021.e07702

Table 2.

Experimental design of CGA and caffeine content extraction in green coffee beans.

Run X1: NADES Ratio (mol) X2: Extraction Time (min) X3: Solid-Liquid Ratio (g/mL) Y1: CGA Content (mg/g) Y2: Caffeine Content (mg/g)
1 1.25:1.2 10 1:30 5.50 + 1.82 2.97 + 0.70
2 1.25:1.2 10 1:10 3.74 + 3.62 1.70 + 1.34
3 1.25:1.2 35 1:20 8.41 + 6.85 3.70 + 2.57
4 1.25:1.2 60 1:10 7.26 + 4.15 2.94 + 1.38
5 2:1.2 10 1:20 7.37 + 0.68 3.27 + 0.22
6 0.5:1.2 60 1:20 3.08 + 2.30 1.74 + 0.93
7 1.25:1.2 35 1:20 7.86 + 3.72 3.42 + 1,33
8 2:1.2 60 1:20 3.66 + 3.43 1.85 + 1.31
9 1.25:1.2 35 1:20 8.16 + 3.29 3.56 + 1.20
10 1.25:1.2 60 1:30 10.65 + 0.32 4.98 + 0.13
11 0.5:1.2 35 1:30 5.61 + 2.58 3.11 + 0.98
12 0.5:1.2 35 1:10 5.14 + 5.19 1.99 + 1.69
13 0.5:1.2 10 1:20 4.58 + 1.34 2.16 + 0.45
14 2:1.2 35 1:30 3.08 + 2.25 1.77 + 0.83
15 1.25:1.2 35 1:20 3.78 + 1.32 1.83 + 0.53
16 1.25:1.2 35 1:20 6.62 + 2.28 2.77 + 0.87
17 2:1.2 35 1:10 6.48 + 2.56 2.41 + 0.76