Table 8.

Regression coefficients for the models representing as a function of variations in the independent variables for taste of date bars and their respective R ².

Terms of model equations	Day
	0	15	30	45	60	75	90
Constant	4.6671***	3.8671***	3.9293***	3.1233**	3.6379***	3.6232***	3.1879***
X	0.3809*	0.4360**	0.3691***	0.3743	0.2760**	0.2617*	0.3010*
Y	0.9118**	0.9915***	1.0390***	1.2077**	0.7514**	0.6640**	0.6015**
X × X	−0.0277*	−0.0243**	−0.0264***	−0.0250	−0.0208**	−0.0257**	−0.0208*
Y × Y	−0.0875**	−0.0921**	−0.1094***	−0.1250**	−0.0843**	−0.0890**	−0.0593**
X × Y	−0.0166	−0.0291*	−0.0167**	−0.0208	0.0000	0.0166	−0.0083
R 2	89.9%	95.0%	98.8%	89.4%	95.2%	94.2%	89.6%

*significant (P < 0.10); **significant (P < 0.05); ***significant (P < 0.01)

X: whey protein concentrate

Y: vetch protein isolate.