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. 2021 Jan 27;10(2):180. doi: 10.3390/antiox10020180

Table 4.

Color development during ripening and refrigerated storage of fuet samples.

Control HTs HTo C
Day 0 L* 62.09 ± 0.01 a w 56.97 ± 0.03 b w 57.54 ± 0.01 b w 54.09 ± 0.04 c w
a* 9.86 ± 0.04 z 9.69 ± 0.01 z 10.52 ± 0.01 z 10.30 ± 0.01 z
b* 14.06 ± 0.05 x 14.07 ± 0.02 x 14.78 ± 0.00 x 13.34 ± 0.02 x
C* 17.17 ± 0.04 z 17.08 ± 0.02 z 18.14 ± 0.01 z 16.86 ± 0.01 z
h 54.94 ± 0.19 x 55.44 ± 0.03 x 54.56 ± 0.02 x 52.35 ± 0.06 x
Day 7 L* 55.89 ± 0.04 c xw 58.60 ± 0.05 a xw 55.75 ± 0.11 c xw 56.82 ± 0.10 b xw
a* 17.20 ± 0.29 y 16.03 ± 0.01 y 16.76 ± 0.07 y 15.24 ± 0.06 y
b* 10.21 ± 0.21 y 10.08 ± 0.01 y 10.94 ± 0.01 y 9.85 ± 0.06 y
C* 20.00 ± 0.36 yx 18.94 ± 0.01 yx 20.01 ± 0.06 yx 18.15 ± 0.08 yx
h 30.70 ± 0.11 y 32.16 ± 0.03 y 33.14 ± 0.09 y 32.89 ± 0.05 y
Day 14 L* 57.75 ± 0.06 a yx 55.31 ± 0.14 b yx 54.19 ± 0.01 b yx 50.48 ± 0.05 c yx
a* 14.81 ± 0.04 y 16.72 ± 0.12 y 14.57 ± 0.02 y 17.57 ± 0.01 y
b* 8.6 ± 0.02 z 9.86 ± 0.02 z 8.14 ± 0.0 z 9.51 ± 0.01 z
C* 17.13 ± 0.04 zy 19.41 ± 0.12 zy 16.69 ± 0.02 zy 19.95 ± 0.05 zy
h 30.14 ± 0.02 z 30.53 ± 0.12 z 29.2 ± 0.02 z 28.41 ± 0.02 z
Day 21 L* 49.91 ± 0.01 c z 51.18 ± 0.01 a z 49.55 ± 0.01 c z 50.29 ± 0.08 b z
a* 19.05 ± 0.01 x 18.9 ± 0.01 x 17.96 ± 0.02 x 16.86 ± 0.03 x
b* 8.42 ± 0.01 z 9.04 ± 0.01 z 9.71 ± 0.01 z 8.27 ± 0.01 z
C* 20.82 ± 0.01 x 20.96 ± 0.01 x 20.42 ± 0.02 x 18.78 ± 0.04 x
h 23.86 ± 0.01 z 25.56 ± 0.01 z 28.41 ± 0.02 z 26.12 ± 0.02 z
Day 35 L* 54.45 ± 0.14 a z 52.12 ± 0.19 b z 48.64 ± 0.01 c z 48.76 ± 0.02 c z
a* 15.98 ± 0.06 x 17.87 ± 0.18 x 19.30 ± 0.02 x 18.73 ± 0.01 x
b* 7.86 ± 0.08 z 9.50 ± 0.08 z 10.33 ± 0.03 z 9.59 ± 0.01 z
C* 17.81 ± 0.08 x 20.24 ± 0.19 x 21.90 ± 0.03 x 21.05 ± 0.02 x
h 26.19 ± 0.16 z 27.98 ± 0.06 z 28.14 ± 0.03 z 27.08 ± 0.01 z
Day 50 L* 50.57 ± 0.38 c zy 56.71 ± 0.10 a zy 49.95 ± 0.05 c zy 51.38 ± 0.01 b zy
a* 17.34 ± 0.04 y 15.93 ± 0.02 y 18.71 ± 0.01 y 13.74 ± 0.01 y
b* 8.31 ± 0.01 z 7.54 ± 0.03 z 10.10 ± 0.01 z 8.44 ± 0.01 z
C* 19.23 ± 0.04 zy 17.62 ± 0.03 zy 21.26 ± 0.01 zy 16.13 ± 0.01 zy
h 25.62 ± 0.05 z 25.35 ± 0.05 z 28.37 ± 0.01 z 31.57 ± 0.03 z
Day 100 L* 46.32 ± 0.23 b zy 52.17 ± 0.14 a zy 45.75 ± 0.11 b zy 47.18 ± 0.10 b zy
a* 15.34 ± 0.10 y 13.83 ± 0.01 y 15.33 ± 0.01 y 11.24 ± 0.03 y
b* 7.10 ± 0.06 z 6.94 ± 0.07 z 9.08 ± 0.06 z 6.99 ± 0.01 z
C* 18.83 ± 0.19 zy 15.33 ± 0.25 zy 20.26 ± 0.01 zy 12.10 ± 0.31 zy
h 24.62 ± 0.45 z 23.35 ± 0.15 z 28.90 ± 0.57 z 29.71 ± 0.29 z

HTs, samples enriched with synthetic Hydroxytyrosol; HTo, samples enriched with organic Hydroxytyrosol; C, samples enriched with citric; a, b, c: different letters among data in the same row indicate significant differences among samples (p < 0.05); w, x, y, z: different letters among data in the same column indicate significant differences among days of analysis (p < 0.05).