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. 2018 Jul 25;28(1):7–14. doi: 10.1007/s10068-018-0442-x

Table 2.

Moisture, Aw, color, and particle size of coffee beans at different roasting level

Level of roasting Moisture content (g/100 g)* Aw* Color lightness (L)** Particle size (g/100 g)*
>425 µm 300–425 µm 250–300 µm <250 µm
Green bean 11.13 ± 0.01e 0.65 ± 0.01e 46.35 ± 0.03f 84.17 ± 0.78f 5.42 ± 0.40a 7.38 ± 1.6a 3.03 ± 0.39a
Early yellow 6.76 ± 0.17d 0.56 ± 0.01d 47.37 ± 1.04f 64.57 ± 3.26e 18.20 ± 1.63b 11.13 ± 0.95b 6.10 ± 2.58a
Brown 3.48 ± 0.15c 0.37 ± 0.01c 39.61 ± 0.26e 47.87 ± 0.74d 31.57 ± 1.29c 19.13 ± 0.54c 1.44 ± 0.01a
1st crack done 1.68 ± 0.09b 0.22 ± 0.02b 32.02 ± 1.35d 35.02 ± 0.67c 40.00 ± 0.23d 22.70 ± 0.94d 2.28 ± 0.04a
Very light 0.94 ± 0.07a 0.15 ± 0.01a 22.33 ± 0.21c 23.04 ± 0.25b 39.75 ± 5.00cd 28.72 ± 1.00e 8.49 ± 5.75a
Light 1.15 ± 0.37a 0.17 ± 0.02a 20.28 ± 0.09b 19.19 ± 0.76ab 39.49 ± 5.65cd 31.65 ± 1.33f 9.66 ± 6.22a
Medium 0.68 ± 0.37a 0.14 ± 0.03a 18.49 ± 0.12a 16.92 ± 2.82a 39.51 ± 4.66cd 35.42 ± 0.82g 8.15 ± 2.65a
Dark 0.75 ± 0.11a 0.15 ± 0.01a 17.21 ± 0.49a 15.76 ± 3.66a 37.97 ± 2.66cd 36.91 ± 0.47g 9.35 ± 6.78a

Values with different superscript in the same column are significantly different (P < 0.05)

*Average of four data ± standard deviation

**Average of ten data ± standard deviation