FIELD: agriculture.
SUBSTANCE: method involves removing bark from Siberian larch wood; grinding wood to 3-10 mm sized particles and drying in air at temperature of 30-40 C until residual moisture content is no more than 15%; repeatedly grinding dried raw material to 1-5 mm sized particles and charging into extractor; performing four-fold extraction of raw material using 87-88%-isopropyl alcohol at raw material to extractant ratio of 1:(2.5-3); boiling down extract by 70-90 times; measuring content of dihydroquercetin; adding five-fold emulsifier excess and mixing resultant mixture to produce homogeneous emulsion.
EFFECT: reduced consumption of organic solvent, decreased amount of production wastes, and simplified process.
4 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CEREAL CROPS GROWTH REGULATION METHOD | 2002 |
|
RU2229213C2 |
| METHOD FOR PRODUCING OF BIOLOGICALLY ACTIVE PREPARATION | 2002 |
|
RU2288582C2 |
| METHOD OF DIHYDROQUERCETIN PRODUCTION | 2007 |
|
RU2330677C1 |
| METHOD OF PRODUCTION OF BIOLOGICALLY ACTIVE AGENTS FROM FIR-TREE GREEN | 2002 |
|
RU2233868C2 |
| METHOD OF PRODUCING DIHYDROQUERCETIN | 2010 |
|
RU2435766C1 |
| METHOD OF PREPARING DIHYDROQUERCETIN | 1998 |
|
RU2158598C2 |
| ARABINOGALACTAN POLYSACCHARIDE PRODUCTION METHOD | 2015 |
|
RU2620013C2 |
| METHOD FOR OBTAINING BIOLOGICALLY ACTIVE SUM OF TRITERPENE ACIDS | 2003 |
|
RU2248700C2 |
| METHOD FOR PREPARING DIQUERTIN | 2003 |
|
RU2246301C1 |
| METHOD OF PREPARING DIQUERTIN AS A NEW PHYTOPREPARATION WITH GENERAL-PURPOSE THERAPEUTIC EFFECT | 1998 |
|
RU2174403C2 |
