Table 2.

Modification of color attributes of yogurt pigmented with refined pitaya extract (Er), and microcapsules prepared with succinylated starch (S), phosphorylated starch (P), and N-Lok^® starch (N)

Variable	Pigmenting
	Er	P	S	N
Tendency1 of H*	Linear	Logarithmic	Logarithmic	Logarithmic
R2H*	0.9296 (0.0239)	0.9574 (0.0126)	0.9026 (0.0063)	0.9864 (0.0175)
aH*	0.2519 (0.0471)	5.5727 (0.0903)	4.3446 (0.0630)	6.3346 (0.1195)
bH*	–	0.1987 (0.0175)	0.2054 (0.0088)	0.1828 (0.0098)
yiniH*	40.735 (0.0624)	9.9584 (0.0451)	8.2624 (0.0324)	10.8564 (0.0270)
yfinH*	48.796 (0.0923)	15.5311 (0.0834)	12.607 (0.0393)	17.191 (0.1465)
ΔH*	8.0608 (0.1027)	5.5727 (0.0903)	4.3446 (0.0630)	6.3346 (0.1195)

Tendency of C*	Linear	Logarithmic	Logarithmic	Logarithmic
R2C*	0.8823 (0.0971)	0.8591 (0.0091)	0.8820 (0.0223)	0.8748 (0.0238)
aC*	0.0427 (0.0092)	− 2.5514 (0.6373)	− 2.2871 (0.2254)	− 2.5995 (0.0831)
bC*	–	0.1356 (0.0578)	0.2047 (0.0690)	0.1546 (0.0199)
yiniC*	8.7978 (0.0649)	19.096 (0.1250)	21.4861 (0.0907)	18.6158 (0.0335)
yfinC*	10.164 (0.1423)	16.5446 (0.7315)	19.199 (0.2882)	16.0163 (0.1085)
ΔC*	1.3664 (0.0981)	− 2.5514 (0.6373)	− 2.2871 (0.2254)	− 2.5995 (0.0831)

Tendency of L*	Linear	Logarithmic	Logarithmic	Logarithmic
R2L*	0.9032 (0.0079)	0.9093 (0.0118)	0.8969 (0.0082)	0.936 (0.0101)
aL*	− 0.0101 (0.0021)	3.0244 (0.1135)	2.7657 (0.0238)	3.021 (0.0671)
bL*	–	0.1229 (0.0197)	0.2199 (0.0410)	0.1592 (0.0209)
yiniL*	84.2631 (0.729)	70.6281 (0.0470)	67.9383 (0.0134)	71.2315 (0.0112)
yfinL*	83.9399 (0.048)	73.6525 (0.0792)	70.704 (0.0354)	74.2525 (0.0747)
ΔL*	− 0.3232 (0.0005)	3.0244 (0.1135)	2.7657 (0.0238)	3.0210 (0.0671)

¹Linear tendency was represented by a model with the form $(y=ax+b)$. Logarithmic tendency was represented by a model with the form $(y=y_{\mathit{ini}}+a(1-e^{-bx}))$. R² is determination coefficient. Values a, b, and y_ini correspond to regression constants. The value of y_fin was obtained as the sum (a + y_ini)