Patent ID: 8545900

Claim:
A process for obtaining fractions of a concentrate of total fixed lipids from an expression of kernels of the family Sapotaceae, the process comprising the steps of: a) subjecting the kernels to a pressure of 38.30-81.40 Newton/meter 2 , equal to 8-17lb/ft 2 at a temperature from 80 to 110° C.; b) filtering a liquid obtained in the step a) at a temperature between 35 to 100° C.; c) recovering a filtered liquid portion, comprising the concentrate of total fixed lipids from the expression of kernels of the family Sapotaceae, and a solid fraction portion retained and left apart, that are obtained from the filtering as set forth in step b) separately; and d) separating the filtered liquid portion comprising the concentrate of total fixed lipids from the expression of kernels of the family Sapotaceae into a superior fraction A of an oil, an intermediate fraction B of phospholipids and an inferior fraction C of glucosidic triterpenes and of the sterols by the process comprising the steps of: 1) adding from 50 to 300% of water to the concentrate of total fixed lipids and emulsifying it in one or three more subsequent parts; 2) subjecting the emulsion to at least a centrifugation cycle for 5 to 45 minutes at 1,000 to 6,000 rpm approximately in a rotor of 20.5 cm of radial distance or equivalent, expressed in relative gravitational force g, for a gram of homgenate, from 230 to 8,000×g or bigger, from 5 to 45 minutes or for more prolonged times; 3) separating the superior fraction A of step 2) which corresponds to the oils; 4) separating the intermediate fraction B of the step 2) which corresponds to the phospholipids; 5) separating the inferior fraction C of the step 2) which corresponds to the residues of glucosidic triterpenes and of sterols in a watery medium; and 6) subjecting the inferior fraction C of residues of glucosidic triterpenes and of sterols in the watery-medium to separation by refrigeration, sedimentation, and centrifugation to decant the water and lyophilize the watery sediment or by precipitation with agents or with an extraction using a solvent selected from intermediate polarity, immiscible as alkanes, ketones, esters or ethers of low molecular weight, as petroleum ether, chloroform, acetone, ethyl methyl ketone, ethyl acetate or ethyl ether, with which an organic phase is recovered which is subjected to evaporation to recover this fraction as semi-purified dry extract, where all these lipidic fractions, fraction A, fraction B and fraction C, are free of toxic substances.