Process for obtaining an .alpha.-lactalbumin enriched product from whey, and uses thereof
US4485040A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Jan 8, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/833
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process of obtaining a .alpha.-lactalbumin enriched product from whey of various origins is disclosed. A first ultrafiltration is carried out on unpasteurized raw whey with membranes having cut-off greater than 5,000 (e.g. 50,000) at a pH between 6.3 and 7 (e.g. 6.6) and a temperature between 30.degree. and 60.degree. C. thereby retaining whey proteins. The ultrafiltrate then undergoes a second ultrafiltration with a membrane capable of retaining .alpha.-lactalbumin (cut-off about 1,200 and 2,000) which is preferably diafiltration. Depending on whether starting whey is acid whey or sweet whey the resulting product may contain practically no CMP or some (e.g. 25%). The resulting product is useful as a mother's milk substitute, pharmaceutical, intensive care or therapeutic food, or tryptophan enriched nutrient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.