Keywords: واکنش استریژیک; Ai; initial acidity; Af; final acidity; FAAEs; fatty acids alkyl esters; FFAs; free fatty acids; EEs; ethyl esters; MEs; methyl esters; MVol; micropore volume; OlAc; oleic acid; OleOEt; ethyl oleate; PV; pervaporation; PVol; pore volume; SA; surface area;