Immunopotentiator and method of manufacturing the same
US5560914A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Jul 12, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/911
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In a method of producing an immunopotentiator, a plant tissue material is extracted with hot water, the insoluble material is filtered, and the filtrate thereof is treated with glucoamylase to decompose a starch, thereby obtaining a water-soluble polysaccharide. Ammonium sulfate is added in a culture filtrate obtained by culturing any one of Asp Oryzae of the Aspergillaceae and Lentinus edodes of the Basidiomycetes to obtain an enzyme complex from the precipitate. The water-soluble polysaccharide and the enzyme complex are added together to cause them to react at a pH of 4.5 for 30 to 60 minutes and then at a pH of 6.0 for 30 to 60 minutes, thereby biologically modifying the water-soluble polysaccharide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.