. 2020 Apr 29;57(12):4383–4394. doi: 10.1007/s13197-020-04475-6

Table 3.

CIEL*a*b* parameters’ dependence on pH (results are expressed as means ± standard deviation, different letters designate significantly different results between pairs of test and control for each value of pH)

CIELab* parameters	L*	a*	b*	C*	H*
Control for 2.3	75.7 ± 0.1^a	19.1 ± 0.1^a	8.1 ± 0.1^a	20.8 ± 0.1^a	2.23 ± 0.04^a
pH = 2.3	74.6 ± 1.0^a	37.8 ± 3.6^b	7.0 ± 0.1^b	38.4 ± 3.6^b	5.34 ± 0.42^b
Control for 3.5	65.5 ± 0.1^a	19.1 ± 0.1^a	11.3 ± 0.2^a	22.2 ± 0.2^a	1.49 ± 0.02^a
pH = 3.5	57.2 ± 2.2^b	23.8 ± 0.5^b	12.5 ± 0.1^b	26.9 ± 0.4^b	1.74 ± 0.07^b
Control for 5.6	54.4 ± 0.2^a	35.5 ± 0.1^a	16.4 ± 0.3^a	39.1 ± 0.2^a	2.01 ± 0.01^a
pH = 5.6	55.4 ± 0.5^b	31.5 ± 0.4^b	17.7 ± 0.2^b	36.2 ± 0.4^b	1.59 ± 0.1^b
Control for 7.3	54.4 ± 0.2^a	35.5 ± 0.1^a	16.4 ± 0.3^a	39.1 ± 0.2^a	2.01 ± 0.01^a
pH = 7.3	45.5 ± 2.4^b	21.6 ± 0.4^b	20.8 ± 0.1^b	30.0 ± 0.4^b	0.70 ± 0.02^b
Control for 8.0	67.4 ± 0.3^a	24.5 ± 0.5^a	11.5 ± 0.2^a	27.1 ± 0.5^a	1.96 ± 0.01^a
pH = 8.0	62.0 ± 0.1^b	11.5 ± 0.1^b	15.0 ± 0.2^b	19.0 ± 0.1^b	0.28 ± 0.02^b