# US 11,076,610 B2 · Method for making a dairy composition

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- Number: US 11,076,610 B2
- Document ID: US11076610B2
- Status: Granted
- Kind: B2
- Application number: 12/741,035
- Filed: 2008-11-02
- Published: 2010-11-25
- Granted: 2021-08-03
- Earliest claimed: 2002-08-27
- Assignees: fairlife, LLC
- Applicants: Shakeel Ur-Rehman; John M. Dunker; Michael J. McCloskey
- Inventors: Shakeel Ur-Rehman; John M. Dunker; Michael J. McCloskey
- Web page: https://patentgrep.com/patent/US11076610B2

## CPC

- A23C 9/1422: {by ultrafiltration, microfiltration or diafiltration of milk, e.g. for separating protein and lactose; Treatment of the UF permeate}
- A23C 9/123: using only microorganisms of the genus lactobacteriaceae; Yoghurt (A23C9/13 takes precedence)
- A23C 11/106: {Addition of, or treatment with, microorganisms (A23C20/025 takes precedence)}
- A23L 11/65: Soy drinks
- A23C: DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; PREPARATION THEREOF (preservation thereof A23B11/00)
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)

## Abstract

The invention relates to food products and to their methods of preparation. More particularly, the invention relates to cultured dairy products, especially cultured yogurt products and to their methods of preparation.

## Claims

### Claim 1

A method for making a dairy composition comprising the steps of:
subjecting milk to an ultrafiltration step to produce an ultrafiltration permeate fraction and a ultrafiltration retentate fraction;
subjecting the ultrafiltration permeate fraction to a nanofiltration step to produce a nanofiltration permeate fraction and a nanofiltration retentate fraction;
subjecting the nanofiltration permeate to a reverse osmosis step to produce a reverse osmosis permeate fraction and a reverse osmosis retentate fraction;
combining the ultrafiltration retentate fraction with water and the reverse osmosis permeate fraction to form a first mixture;
subjecting the first mixture to a diafiltration step to produce a diafiltration permeate fraction and a diafiltration retentate fraction;
mixing the nanofiltration retentate fraction with the diafiltration retentate fraction, cream and the reverse osmosis retentate fraction to form a second mixture; and
incubating the second mixture with lactic-acid generating bacteria to convert lactose within the second mixture to lactic acid to form a sugar-free dairy composition.

### Claim 2 (depends on 1)

The method of claim 1, wherein the second mixture has a pH of less than 5.0.

### Claim 3 (depends on 1)

The method of claim 1, wherein the second mixture is incubated with the lactic-acid generating bacteria for 4-6 hours at 42° C.

### Claim 4 (depends on 1)

The method of claim 1, wherein the sugar-free dairy composition is concentrated by reverse osmosis.

### Claim 5 (depends on 1)

The method of claim 1, wherein the sugar-free dairy composition is concentrated by ultrafiltration.