Methods for preparing active extract and application thereof
AssigneeBeijing Boxin Nature Biotech Ltd.
InventorsMiao JIANG, Javier ANGULO, Shaokun TANG, Qing JIN
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Abstract
Disclosed is a method for preparing an active Nitraria tangutorum fruit extract comprising a solvent extraction and purificaiton process and/or a supercritical extraction process. Further disclosed are a pharmaceutical composition, a food additive and a health-care preparation each comprising the active Nitraria tangutorum fruit extract obtained by the method for preparing them, and use of the extract in the manufacture for a medicament for the treatment and/or prevention of a condition.
Claims95
A method for obtaining an extract from Nitraria tangutorum Bobr., comprising:
- (1) mixing a sample of Nitraria tangutorum Bobr. fruit with an alcohol (e.g., ethanol) solution, e.g., from about 30% (v/v) to about 95% (v/v), such as about 65% (v/v);
- (2) incubating the mixture under a temperature between about 10° C. and about 60° C., such as between about room temperature (e.g., about 18° C.) and about 55° C.;
- (3) obtaining a liquid phase sample from the mixture, and optionally filtering the liquid phase sample, removing the alcohol from the liquid phase sample, and/or concentrating the liquid phase sample, wherein optionally the remaining sample comprises solid, semi-solid, and/or liquid matter;
- and
- (4) allowing evaporation of the alcohol and/or water from the liquid phase sample, wherein the resulting sample after evaporation comprises an extract comprising one or more ingredients from Nitraria tangutorum Bobr.
A method for obtaining an extract from Nitraria tangutorum Bobr., comprising:
- (1) extracting a sample of Nitraria tangutorum Bobr. fruit in a first supercritical fluid extraction device, to obtain an oil-like extract and a remaining sample;
- (2) mixing the remaining sample with an entrainer and extracting the mixture in a second supercritical fluid extraction device, to obtain a liquid phase sample;
- and
- (3) allowing evaporation from the liquid phase sample, wherein the resulting sample after evaporation comprises an extract comprising one or more ingredients from Nitraria tangutorum Bobr.
Dependencies are inferred from the claim text.