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. 2019 Feb 6;8(2):37. doi: 10.3390/antiox8020037

Table 4.

Predicted local maximum for the optimization of the MAE applying a Box–Behnken experimental design.

pH Solvent (Ethanol) (%) Solvent-to-Seed Ratio (X4:1) Treatment Time (min) Polyphenol
(mg GA/g Seed)
Bixin (%)
7.00 96 5.95 5.00 2.69 0.58
Experimental result 3.08 ± 0.01 0.58 ± 0.02
Relative error −0.39 0.00
Absolute error (%) 14.41 0.55

Values are expressed as mean ± standard deviation (n = 3).