Table 6.

Colour parameters (L*a*b* model) and total colour difference (ΔE) of control and enriched extrudates.

Sample	L* (%)	a* (-)	b* (-)	ΔE (-)
R (control)	84.5 ± 0.02 df	−2.94 ± 0.02 a	40.75 ± 0.02 e	-
1.5 GB	75.4 ± 0.06 b	−1.22 ± 0.05 b	31.98 ± 0.11 d	12.78
3 GB	72.9 ± 0.07 a	0.03 ± 0.02 d	28.64 ± 0.05 b	17.00
1.5 GB + 2 BP	78.7 ± 0.07 c	−1.09 ± 0.03 c	31.04 ± 0.08 c	11.46
3 GB + 2 BP	76.2 ± 0.03 bc	0.28 ± 0.02 e	28.52 ± 0.04 a	15.14
1 GB + 1 S	69.3 ± 0.05 e	−4.94 ± 0.03 d	27.47 ± 0.08 d	20.29
2 GB + 2 S	64.7 ± 0.03 d	−4.59 ± 0.04 c	24.41 ± 0.08 c	25.71
3 GB + 3 S	59.2 ± 0.04 b	−4.16 ± 0.04 b	21.88 ± 0.04 ab	31.64
4 GB + 4 S	58.7 ± 0.04 a	−4.12 ± 0.04 b	21.64 ± 0.02 a	32.13
4 GB + 4 S + 2 BP	61.3 ± 0.06 c	−6.20 ± 0.06 e	22.66 ± 0.02 b	29.64

Mean values with the same letters in the column were not significantly different (α = 0.05). See Table 2 for explanation of sample codes.