Table 1. Kinetic parameters obtained from the second-order kinetic model of dieckol extraction in CCAC20, CCAC40, CCAC60 and 50% of ethanol

Sample	Solvent:water (v/v)	Ce (mg/g)	k (mg/g min)	Coefficient (R2)
EtOH501)	50:50	28.41	0.08	0.9865
CCAC202)	20:80	27.62	0.08	0.9270
CCAC403)	40:60	29.15	0.12	0.9699
CCAC604)	60:40	29.67	0.07	0.9887

EtOH50, 50% ethanol with water content 50 (v/v).
CCAC20, choline chloride-acetic acid with water content 80 (v/v).
CCAC40, choline chloride-acetic acid with water content 60 (v/v).
CCAC60, choline chloride-acetic acid with water content 40 (v/v).