Abstract:
PURPOSE: A method of improving the anti-oxidation ability of bamboo leaves is provided to heat process the bamboo leaves for improving anti-oxidation ability. CONSTITUTION: Bamboo leaves are heat-processed at 180-250°C for 5-20 minutes. The bamboo leaves are cooled at 5-35°C for 20-40 minutes. The bamboo leaves are obtained from more than one kind selected from a group consisting of Phyllostachys nigra Munro, Phyllostachys edulis, Phyllostachys bambusoides, Phyllostachys nigra var. henonis, Phyllostachys pubescens, Sasa borealis, and Sasa quelpaertensis Nakai. [Reference numerals] (AA) Before heat processing; (BB) After heat processing
Abstract translation:目的:提高竹叶抗氧化能力的方法,对竹叶进行加热处理,提高抗氧化能力。 规定:竹叶在180-250℃下热处理5-20分钟。 竹叶在5-35℃冷却20-40分钟。 竹叶从多种选自Phyllostachys nigra Munro,Phyllostachys edulis,Phyllostachys bambusoides,Phyllostachys nigra var。 on is is,,。。。。。。。。。。。。。。。。。。。。。。。。。 (附图标记)(AA)热处理前; (BB)热处理后
Abstract:
PURPOSE: A method for preparing a bamboo leaf extract is provided to quickly extract and to selectively obtain useful substances according to an extraction condition. CONSTITUTION: A method for preparing a bamboo leaf extract comprises a step of treating bamboo leaves with a subcritical solvent. The subcritical solvent is prepared by treating with a mixture of water and ethanol at 120-220 deg. C and 100-2500 PSI. The volume ratio of water and ethanol is 0.1-10:1. The extract contains one or more compounds selected from the group consisting of coumaric acid, tricin, p-coumaryl alcohol, 3- (4-hydroxyphenyl)-2-propenoic acid ethyl ester, and ferulic acid ethyl ester.
Abstract:
PURPOSE: A method for isolating prenylated flavonoid from Cudrania tricuspidata (Call.) Bureau is provided to prevent sample loss. CONSTITUTION: A method for isolating prenylated flavonoid from Cudrania tricuspidata (Call.) Bureau comprises: a step of extracting Cudrania tricuspidata (Call.) Bureau with an organic solvent to prepare an extract; a step of concentrating the extract by centrifugal partition chromatography(CPC). The CPC comprises a step of filling upper phase solvent in a rotor; a step of dropping the upper phase solvent and stabilizing two phases; a step of injecting the extract to prepare a fraction.
Abstract:
PURPOSE: A composition containing Gymnaster koraiensis extract, fraction thereof, or gymnasterkoreayne B is provided to prevent alcoholic liver damage and to improve liver condition. CONSTITUTION: A pharmaceutical composition for protecting liver contains Gymnaster koraiensis extract as an active ingredient. The extract is isolated using water, alcohol of C1-C4, or mixture solvent thereof. A pharmaceutical composition for protecting liver contains Gymnaster koraiensis fraction as an active ingredient. The fraction is prepared from the Gymnaster koraiensis extract using n-hexane, ethyl acetate, n-butanol, and water in order. A pharmaceutical composition for protecting liver also contains gymnasterkoreayne B of chemical formula 1 as an active ingredient.
Abstract:
PURPOSE: A gripper device for a microrobot is provided to improve the precision of position and gripping force control by having a voice-coil motor and a gripper hand having super-elasticity. CONSTITUTION: A gripper device for a microrobot is composed of a driving mechanism(10) having a voice-coil motor, and a gripper hand having super-elasticity. The voice-coil motor includes a pushing shaft(11) on which coil(12) is wound, magnets(13) located at both sides of the coil, and oilless bearings(15) installed between front and rear sides of the pushing shaft and a frame(14).