Preparation of protein isolate from sunflower seed
US4435319A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1983 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Jul 15, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23J1/14
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process for extracting protein from sunflower seed meal, which protein is free from dark or unacceptable colors. The process involves the sequential steps of (1) treating a suspension of sunflower seed meal with an acid at a pH of between 4.0 and 7.0; (2) separating the insoluble residue from the protein extract; (3) resuspending the insoluble residue and repeating steps (1) and (2) sequentially on the residue until the desired depletion of color has been achieved; (4) resuspending and treating the insoluble residue with an acid other than sulphuric acid at a pH<4.0; (5) separating the insoluble residue from the protein extract; (6) repeating steps (4) and (5) until the desired amount of protein has been extracted; and (7) combining the protein extract from steps (2), (3), (5) and (6) and recovering the protein therefrom by either precipitation with an acid or by ultrafiltration. The protein is of a quality making it suitable as a supplement in human nutrition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.