RU98107676A - METHOD FOR PRODUCING DIHYDROQUERCERETINE - Google Patents

METHOD FOR PRODUCING DIHYDROQUERCERETINE

Info

Publication number
RU98107676A
RU98107676A RU98107676/14A RU98107676A RU98107676A RU 98107676 A RU98107676 A RU 98107676A RU 98107676/14 A RU98107676/14 A RU 98107676/14A RU 98107676 A RU98107676 A RU 98107676A RU 98107676 A RU98107676 A RU 98107676A
Authority
RU
Russia
Prior art keywords
producing
impurities
dihydroquerceretine
aqueous solution
dihydroquercetin
Prior art date
Application number
RU98107676/14A
Other languages
Russian (ru)
Other versions
RU2158598C2 (en
Inventor
В.А. Бабкин
Л.А. Остроухова
Д.В. Бабкин
Ю.А. Малков
Original Assignee
Иркутский институт химии СО РАН
Filing date
Publication date
Application filed by Иркутский институт химии СО РАН filed Critical Иркутский институт химии СО РАН
Priority to RU98107676A priority Critical patent/RU2158598C2/en
Priority claimed from RU98107676A external-priority patent/RU2158598C2/en
Publication of RU98107676A publication Critical patent/RU98107676A/en
Application granted granted Critical
Publication of RU2158598C2 publication Critical patent/RU2158598C2/en

Links

Claims (1)

Способ получения дигидрокверцетина путем экстракции влажной измельченной древесины лиственницы органическим растворителем - этилацетатом с последующим упариванием экстракта, обработкой его горячей водой, фильтрацией водного раствора от примесей и кристаллизацией из него дигидрокверцетина, отличающийся тем, что измельченную древесину непосредственно перед экстракцией насыщают водой, упаренный экстракт обезжиривают гексаном или бензином, а водный раствор ДКВ перед кристаллизацией фильтруют от примесей.A method of producing dihydroquercetin by extraction of wet ground larch wood with an organic solvent - ethyl acetate, followed by evaporation of the extract, treating it with hot water, filtering the aqueous solution from impurities and crystallizing dihydroquercetin from it, characterized in that the ground wood is saturated with water immediately before extraction, the evaporated extract is degreased with hexane or gasoline, and the aqueous solution of DHQ before crystallization is filtered from impurities.
RU98107676A 1998-04-21 1998-04-21 Method of preparing dihydroquercetin RU2158598C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU98107676A RU2158598C2 (en) 1998-04-21 1998-04-21 Method of preparing dihydroquercetin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU98107676A RU2158598C2 (en) 1998-04-21 1998-04-21 Method of preparing dihydroquercetin

Publications (2)

Publication Number Publication Date
RU98107676A true RU98107676A (en) 2000-01-27
RU2158598C2 RU2158598C2 (en) 2000-11-10

Family

ID=20205152

Family Applications (1)

Application Number Title Priority Date Filing Date
RU98107676A RU2158598C2 (en) 1998-04-21 1998-04-21 Method of preparing dihydroquercetin

Country Status (1)

Country Link
RU (1) RU2158598C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2435766C1 (en) 2010-11-11 2011-12-10 Сергей Алексеевич Лашин Method of producing dihydroquercetin
RU2622024C2 (en) * 2015-12-01 2017-06-08 Общество с ограниченной ответственностью "Флавимакс" Application of liposomal dihydroquercetin emulsion "flamena" for treatment of chronic endometritis with autoimmune disorders in case of infertility
RU2747696C1 (en) * 2020-08-04 2021-05-12 Елена Геннадьевна Сергеева Method for obtaining dihydroquercetin

Similar Documents

Publication Publication Date Title
RU95118920A (en) METHOD FOR PRODUCING STEVIOZIDE
JPS575663A (en) Purification of stevioside through extraction
RU98107676A (en) METHOD FOR PRODUCING DIHYDROQUERCERETINE
JPS55167226A (en) Analgesic and antinflammatory agent, and its preparation
RU95106640A (en) Glycogen polysaccharides and method for its production
CN106349308B (en) The method and application of Rhoifolin are extracted in a kind of peony
KR960004022B1 (en) Method of extraction and purification of flavonoid compounds in ginko leaves
RU97109312A (en) METHOD FOR PRODUCING BIOLOGICALLY ACTIVE SUBSTANCES FROM BUCKTHORN RAW MATERIALS
RU96122560A (en) MEANS FOR COMPLEX THERAPY OF DISEASES "DIKVERTIN" AND METHOD OF ITS OBTAINING
JPS55111768A (en) Decolorization and purification of stevia sweet component
RU96119235A (en) METHOD FOR RARE EARTH EXTRACTION FROM PHOSPHOGYPS
RU96117773A (en) METHOD FOR PRODUCING VEGETABLE POLYPHENOLS HAVING A HEPATOPROTECTIVE ACTION
RU96106626A (en) METHOD FOR PRODUCING P-VITAMIN MEDICINE
RU98118118A (en) METHOD FOR PRODUCING CONCENTRATE OF ECDISTEROIDS AND ECDISTERON FROM VEGETABLE RAW MATERIALS
IE34132B1 (en) Treatment of biological sludge
JPS5557584A (en) Preparation of 1'-methyl-2'-(3-pyridyl)-2'-pyrroline
RU2003137882A (en) METHOD FOR COMPREHENSIVE PROCESSING OF LARCH WOOD
RU96119477A (en) METHOD FOR RECTIFICATION OF OIL OR OIL PRODUCTS
TH60178B (en) Durian gel How to extract gel from durian Preparation of acid polysaccharides and their uses
SU1143423A1 (en) Method of obtaining flavonoids possessing p-vitamin activity
SU473713A1 (en) The method of cleaning technical santonina
KR950032018A (en) Soil modifier aqueous solution composition and manufacturing method using kato acid
Masalsky Phytopathological state of Tilia L. plants in the plantation of the Dendrological Park Alexandria
RU97113738A (en) METHOD FOR PROCESSING A WATER MATTER, OBTAINED BY ISOLATION OF ASKORBINIC ACID
RU99114756A (en) METHOD FOR PRODUCING HEMICELLULOSES