# US 7,611,741 B2 · Method for extraction and/or squeezing of edible food and drink

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- Number: US 7,611,741 B2
- Document ID: US7611741B2
- Status: Granted
- Kind: B2
- Application number: 10/496,984
- Filed: 2002-11-19
- Published: 2005-01-13
- Granted: 2009-11-03
- Earliest claimed: 2001-11-29
- Assignees: Meiji Dairies Corporation
- Inventors: Takeshi Honda; Takeshi Imazawa; Yasushi Kubota; Tadashi Nakatsubo
- Web page: https://patentgrep.com/patent/US7611741B2

## CPC

- A23L 2/04: Extraction of juices (machines or apparatus for extracting juice A23N1/00, A47J19/00)
- A23F 3/18: Extraction of water soluble tea constituents ({A23F3/166 takes precedence; } isolation of tea flavour or tea oil A23F3/42)
- A23F 5/26: Extraction of water soluble constituents {(A23F5/246 takes precedence)}
- A23F 5/265: {the solid substances being transported through the apparatus during the extraction cycle}
- A23F 5/267: {using additives, specific extraction media or specific coffee blends}
- A23L 2/38: Other non-alcoholic beverages (drinks from legumes A23L11/60)
- A23L 27/10: Natural spices, flavouring agents or condiments; Extracts thereof
- A23L 27/11: {obtained by solvent extraction}
- A23L 33/105: Plant extracts, their artificial duplicates or their derivatives
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)
- A23F: COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF

## Abstract

A food objective for extraction and/or squeezing is charged into a colloid mill or a twin-screw extruder; immediately after and/or while milling, a low-temperature solvent (for example, water or milk of from −3 to 50° C.) is added; and after treating the food using the extruder, grounds are removed to produce an extract and/or a squeezed liquid.

## Claims

### Claim 1

A process of producing an extract of coffee, which comprises charging roasted coffee beans for extraction in a twin-screw extruder having a narrow gap; milling said coffee beans, and immediately after milling, adding a low-temperature solvent from 2-30° C., followed by kneading said milled coffee beans in the solvent to thereby treat the coffee beans to extract useful components into the solvent; and optionally removing extraction grounds, wherein said milling and said extracting are carried out in the twin-screw extruder such that said milling and extracting are carried out by said twin-screw extruder.

### Claim 2 (depends on 1)

The process according to claim 1, wherein the solvent is at least one member selected from the group consisting of water, milk, dairy products, sugar-containing liquids, sugar alcohol-containing liquids, mineral-containing liquids, vitamin-containing liquids, and stabilizer-containing liquids.

### Claim 3 (depends on 1)

The process according to claim 1, wherein the twin-screw extruder has twin screws rotating in the same direction, and a dispersion liquid comprising the objective food and the solvent is passed through the narrow gap between the two rotating screws, followed by at least one of shearing, kneading and emulsification to thereby carry out extraction and/or squeezing into a solvent.