. 2022 Sep 5;21:179. doi: 10.1186/s12934-022-01898-y

Table 4.

Quadratic model equations describing arabitol production (g/L) and arabitol/glycerol conversion yield (g/g) as function of the significant factors and their interactions, expressed in their original units (Eqs. 2 and 4) or in coded values (Eqs. 3 and 5)

$Arabitol = - 200.85 - 0.62 \cdot Glycerol + 13.83 \cdot T + 1.87 \cdot pH + 0.04 \cdot Glycerol \cdot T - 3.23 \cdot 1 0^{- 3} \cdot Glycero l^{2} - 0.26 \cdot T^{2}$	(1)
$Arabitol = + 17.61 + 2.78 \cdot A + 4.17 \cdot B + 2.11 \cdot C + 3.41 \cdot AB - 3.41 \cdot A^{2} - 1.64 \cdot B^{2}$	(2)
$Yield = - 2.23 - 3.18 \cdot 1 0^{- 3} \cdot Glycerol + 0.15 \cdot T + 0.03 \cdot pH + 2.54 \cdot Glycerol \cdot T - 2.31 \cdot 1 0^{- 5} \cdot Glycero l^{2} - 2.58 \cdot 1 0^{- 3} \cdot T^{2}$	(3)
$Yield = + 0.23 + 0.017 \cdot A + 0.036 \cdot B + 0.031 \cdot C + 0.021 \cdot AB - 0.024 \cdot A^{2} - 0.016 \cdot B^{2}$	(4)