Method of dry fractionation of fat or oil

Details Method of dry fractionation of fat or oil Method of dry fractionation of fat or oil

2004-12-15

2010-06-01

Hern, Brent T O (Department: 1794)

Food or edible material: processes, compositions, and products

Processes

Preparing or treating triglyceridic fat or oil, or processes...

C426S601000, C426S607000, C426S665000, C554S001000, C554S175000, C554S211000

Reexamination Certificate

active

07727569

ABSTRACT:
It is intended to provide a procedure for, in the fractionation of vegetable butter, transesterified fat or oil, isomerized hydrogenated fat or oil, etc. without the use of solvents, obtaining high-concentration component G2U (defined below) by concentrating operation through reduction of the amount of liquid component residue in crystal portion. There is provided a method of dry fractionation of fat or oil characterized in that fat or oil (A) containing components G2U and GU2 is fractionated through crystallization/solid-liquid separation into crystal fraction of concentrated G2U (AF) and liquid fraction of concentrated GU2 (AL), subsequently this crystal fraction (AF) is mixed with liquid G2U-containing fat or oil (B) whose GU2 concentration is lower than that of the liquid fraction (AL) and thereafter the mixture is separated into crystal fraction (BF) and liquid fraction (BL). Provided that G represents a saturated or trans acid form fatty acid residue; U a cis form unsaturated fatty acid residue; and G2U a triglyceride of G2-residue and U1-residue bonded together.

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Translation of Higuchi et al. (JP0258994 A), see Applicant's IDS for JP document.
Translation of JP 2003-134998, see Applicant's IDS for JP document.
International Search Report issued Feb. 15, 2005 in the International (PCT) Application PCT/JP2004/018711 of which the present application is the U.S. National Stage.
Supplementary European Search Report dated May 7, 2008 in EP Application No. 04 80 7070 corresponding to the present U.S. application.

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