Monellin, a sweet polypeptide derived from fruit of dioscoreophyllum cumminsii
US3998798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1975 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Sep 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/801
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Monellin, an intensely sweet polypeptide, substantially free from carbohydrate, is described. Monellin is the pure proteinaceous principle of the fruit Dioscoreophyllum cumminsii, having a molecular weight of approximately 11,000, an isoelectric point of 9.3, and an ultraviolet absorption maximum (.lambda. max) of 277 nm. A process for the production of monellin is described which includes the steps of extracting the fruit with an aqueous medium, separating the extract into a carbohydrate containing fraction and a proteinaceous fraction substantially free from carbohydrate, and recovering the proteinaceous fraction substantially free from carbohydrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.