Preparation method for rare bioactive material, astragalin

文件类型：PDF文档
文件大小：354K
PURPOSE : A method for preparing astagalin by enzyme reaction from astragalin precursor is provided to ensure high productivity and to promote industrial application of astagalin.CONSTITUTION : A method for preparing astagalin comprises : a step of obtaining oil from green tea seeds and adding 5-20 times volume of water to residue; a step of heating at 50-80 celsius degree and adding amylase at 60-65 celsius degree for less than 12 hours; a step of filtering the enzyme reactant and removing moixture; a step of powederizing; and a step of adding methanol and dissolving soluble ingredient. The strain producing amylase is Aspergillus aculeatus. The amount of the crude amylase is 0.001-1.0%%(w/w). The tea tree providing green tea seed is Camellia oleifera.COPYRIGHT KIPO 2011