# US 10,246,663 B2 · Lipid composition and method for producing same

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- Number: US 10,246,663 B2
- Document ID: US10246663B2
- Status: Granted
- Kind: B2
- Application number: 15/702,856
- Filed: 2017-09-13
- Published: 2018-01-04
- Granted: 2019-04-02
- Earliest claimed: 2015-03-18
- Assignees: IHI Corporation
- Applicants: Ihi Corporation
- Inventors: Junichi Okuyama; Tomomi Yajima; Koretaro Takahashi; Takeya Yoshioka
- Web page: https://patentgrep.com/patent/US10246663B2

## CPC

- C11B 1/10: by extracting
- A23D 9/013: Other fatty acid esters, e.g. phosphatides
- A23J 7/00: Phosphatide compositions for foodstuffs, e.g. lecithin
- B01D 11/02: of solids
- C11B 1/02: Pretreatment
- C11B 3/001: {by a combination of two or more of the means hereafter}
- C11B 3/006: {by extraction}
- C11B 3/10: by adsorption
- C11B 3/12: by distillation
- C11B 11/00: Recovery or refining of other fatty substances, e.g. lanolin or waxes
- C11B 13/00: Recovery of fats, fatty oils or fatty acids from waste materials
- C11C 3/00: Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom (sulfonated fats or oils C07C309/62; factice C08H; drying oils C09F)
- A23V 2002/00: Food compositions, function of food ingredients or processes for food or foodstuffs
- C12P 7/64: Fats; Fatty oils; Ester-type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
- C12P 7/6463: obtained from glyceride producing microorganisms, e.g. single cell oil
- C12P 7/6472: containing polyunsaturated fatty acid [PUFA] residues, i.e. having two or more double bonds in their backbone
- C12P 7/6481: Phosphoglycerides (phosphoglycerides having carboxylic acids with less than seven carbon atoms C12P7/62)
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)
- A23D: EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS OR COOKING OILS (preservation thereof A23B20/00; production, refinement or preservation of animal or vegetable fats or oils C11B, C11C)
- A23J: PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C11C: FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- A23V: INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- C12P: FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {(brewing of beer C12C; producing vinegar C12J; producing specific peptides or proteins C07K; producing enzymes C12N9/00; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification C12N15/00; measuring or testing processes involving enzymes or microorganisms C12Q; measuring or testing processes involving nucleic acid amplification reactions C12Q1/6844; fermentation processes to form a food composition, A21 or A23; compounds in general, see the relevant compound class, e.g. C01, C07)}

## Abstract

The method of producing a lipid composition comprises an extraction treatment step to extract a lipid comprised in a hydrated raw material by using an extraction solvent comprising a polar solvent and a nonpolar solvent, and a separation treatment step to separate an extract solution obtained in the extraction treatment step into a polar solvent phase comprising a first lipid fraction and a nonpolar solvent phase comprising a second lipid fraction.

## Claims

### Claim 1

A lipid composition, wherein the EPA to DHA mass ratio (EPA/DHA) in fatty acids constituting the lipid is (EPA/DHA)=1.2 to (EPA/DHA)=7.2, the proportion of phospholipid in the total lipid is no lower than 3% by mass and no higher than 54% by mass, the cadmium concentration is 0.4 mg or lower per kilogram of lipid, the arsenic concentration is 3 mg or lower per kilogram of lipid, and the concentration of dioxins is 2 pg-TEQ or lower per gram of lipid.

### Claim 2 (depends on 1)

The lipid composition according to claim 1, wherein the EPA to DHA mass ratio (EPA/DHA) in fatty acids constituting the lipid is (EPA/DHA)=3.4 to (EPA/DHA)=7.2, and the proportion of phospholipid in the total lipid is no lower than 18% by mass and no higher than 39% by mass.