Abstract:
The present invention related to an antihypertensive composition containing a fraction enriched with ginsenosides of ginseng. The composition according to the present invention increases the production of nitric oxide through the activation of nitric oxide synthase, and thus exhibits superior antihypertensive effects through the vasodilatory activity. Consequently, the composition of the present invention can be used as a composition for preparing functional health foods for preventing and treating hypertension and various cardiovascular diseases caused by complications of hypertension.
Abstract:
The present invention provides a method for preparing an extract fraction reinforced with ginsenoside Rg1 or Rb1 from ginseng. The method for preparing an extract fraction reinforced with ginsenoside Rg1 comprises the steps of: concentrating an alcohol extract of ginseng and then adsorbing the extract diluted in water by adding the extract to an adsorption resin; passing distilled water through the adsorption resin, then eluting and removing unadsorbed ingredients; and adding 30 to 40 v/v % alcohol to the adsorption resin to obtain an eluate. The method for preparing an extract fraction reinforced with ginsenoside Rb1 comprises the steps of: concentrating an alcohol extract of ginseng and then adsorbing the extract diluted in water by adding the extract to an adsorption resin; passing distilled water through the adsorption resin, then eluting and removing unadsorbed ingredients; and adding 50 to 80 v/v % alcohol to the adsorption resin and then eluting.
Abstract:
The present invention provides a method for preparing an extract fraction reinforced with ginsenoside Rg1 or Rb1 from ginseng. The method for preparing an extract fraction reinforced with ginsenoside Rg1 comprises the steps of: concentrating an alcohol extract of ginseng and then adsorbing the extract diluted in water by adding the extract to an adsorption resin; passing distilled water through the adsorption resin, then eluting and removing unadsorbed ingredients; and adding 30 to 40 v/v % alcohol to the adsorption resin to obtain an eluate. The method for preparing an extract fraction reinforced with ginsenoside Rb1 comprises the steps of: concentrating an alcohol extract of ginseng and then adsorbing the extract diluted in water by adding the extract to an adsorption resin; passing distilled water through the adsorption resin, then eluting and removing unadsorbed ingredients; and adding 50 to 80 v/v % alcohol to the adsorption resin and then eluting.
Abstract:
Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
Abstract:
Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
Abstract:
Disclosed are a deuterated novel iridium complex phosphorescent material used as a light-emitting layer material of an organic electroluminescence device, a preparation method thereof and an organic electroluminescence device using the same. Compared with an organic electroluminescence device using the prior art light-emitting layer with no deuterium substitution, the organic electroluminescence device using the deuterated material of the present invention has improved luminescence efficiency, luminance, power efficiency, thermal stability and the like.