METHOD FOR SEPARATING AN ANHYDROUS FAT INTO HIGH AND LOW MELTING POINT FRACTIONS, AND DEVICE THEREFOR

摘要

A method for separating an oil or anhydrous fat in hydrophobic liquid phase into a high melting point fraction and a low melting point fraction. The method comprises a step of tangential flow filtration of said oil or anhydrous fat in hydrophobic liquid phase on a hydrophobic membrane to cause separation of the oil or anhydrous fat into a retentate constituting said high melting point fraction, and an ultrafiltrate constituting said low melting point fraction. The method is useful for producing butter with hard or soft texture characteristics.