Table 3. Optimum conditions and the predicted levels of TY, TAC, TPC, and antioxidant activities of eggplant powder extracts using MAE

Response variables	Independent variables1)			Estimated maximumresponse	Morphology
	X1	X2	X3
TY	62.40	173.82	104.49	1.78	Maximum
TAC	73.98	192.43	112.68	10.32	Maximum
TPC	57.46	146.83	96.54	52.42	Maximum
DPPH RSA	72.25	198.44	96.56	48.67	Maximum
ABTS RSA	71.73	196.88	101.15	48.93	Maximum
FRAP activity	68.11	191.38	102.90	70.61	Maximum

¹⁾X₁, ethanol concentration (%); X₂, microwave power (W); X₃, extraction time (sec).