英语翻译
The data obtained in the Box–Behnken experiment
(Table 3) were converted into a second-order polynomial
equation with four independent variables:
where Y stands for total carotenoids yield,X0 denotes the
model intercept,X1,X2,X3 are the levels of temperature
(1C),solvent–solid ratio and time (min),respectively; ai,
y,aij represent regression coefficients calculated from the
experimental data by multiple regression.By using the
software of Design Expert version 6.0.10 (Stat-Ease,Inc.),
a polynomial model describing the correlation between
carotenoids yield and the three variables or conditions was
obtained as follows: