Abstract:
PURPOSE: A pharmaceutical composition containing Vitis vinifera for preventing or treating osteoarthritis is provided. CONSTITUTION: A pharmaceutical composition for preventing or treating osteoarthritis contains Vitis vinifera extract and pharmaceutically acceptable carrier. Osteoarthritis is caused by aging, obesity or trauma. The Vitis vinifera extract contains 80-130 of procyanidolic value(PCV), 30% or less (+) catechin and (-) epicatechin, and 95-105% of proanthocyanidine. A method for producing Vitis vinifera extract comprises: a step of extracting Vitis vinifera and mixture of acetone and water at room temperature and filtering; a step of distilling remaining liquid and removing acetone; a step of saturating sodium chloride and filtering; a step of extracting with ethyl acetate and concentrating; and a step of adding chloroform and precipitating.
Abstract:
A method for preparing extracts from seeds of Vitis Vinifera is provided to reduce the quantity of acetone consumed for extraction by using a mixed solvent of water and acetone while securing a high yield. A method for preparing extracts from seeds of Vitis Vinifera comprises the following steps of: extracting an extract from a mixture of pulverized seeds of the Vitis Vinifera and a acetone/water mixed solvent in a mixing ratio of 1 to 1-2 at a room temperature and filtering the extract; removing the acetone by distilling the obtained extract and saturating the extract with sodium chloride; extracting the saturated extract by ethylacetate and concentrating the extract; and adding chloroform to the concentrated extract to obtain precipitate.