title: Counter-current chromatographic separation of glycoprotein components from Morchella esculenta (L.) with a polymer phase system by a cross-axis coil planet centrifuge.
abstract: Using a cross-axis coil planet centrifuge, glycoproteins were separated from fermentation media of Morchella esculenta (L.) by high-speed counter-current chromatography. The performance of the apparatus was optimized with four standard proteins including pepsin, lysozyme, ovalbumin and hemoglobin and a polymer phase system composed of 12.5% (w/w) polyethylene glycol 8000 and 25% (w/w) potassium phosphate in distilled water at various pH values. Separations were performed by eluting the lower phosphate-rich phase at a flow-rate of 1.0 ml/min. Under the optimized conditions three glycoprotein components in Morchella esculenta (L.) were resolved within 6 h.
authors.affiliation: Beijing Research Center for Separation and Purification Technologies of Natural Products, Beijing Institute of New Technology Application, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Wei
authors.forename: T
authors.initials: T
authors.lastname: Zhang
authors.forename: Y
authors.initials: Y
authors.lastname: Ito
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D003377:Countercurrent Distribution / Q000379:methods*; D003470:Culture Media; D005285:Fermentation; D006023:Glycoproteins / Q000737:chemistry / Q000302:isolation & purification*; D008970:Molecular Weight
chemical_list: D003470:Culture Media; D006023:Glycoproteins