The extract ofGardenia Yellowpigment can be preliminarily refined by pectinase treatment, plate and frame filtration, centrifugation and other methods to remove pectin, protein and other macromolecular substances. However,Ginkgo Biloba Extractis necessary to remove the gardenoside, which causes the pigment to turn green. The commonly used refining methods are resin adsorption, ultrafiltration, reverse osmosis, supercritical fluid extraction, gel chromatography, lead salt precipitation,Bitter Melon Extractactivated carbon adsorption and so on, but few of them are used in production. Foreign macroporous resin adsorption method has been applied to industrial production.
Separation andBarley Grass Powder: because the target products of gardenia yellow extracted from traditional Chinese medicin