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Title: Co-extraction of egg white proteins using ion-exchange chromatography from ovomucin-removed egg whites. Author: Omana DA, Wang J, Wu J. Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2010 Jul 01; 878(21):1771-6. PubMed ID: 20488768. Abstract: Efficient isolation of egg white components is desired due to its potential uses. Existing methods mainly targeted on one specific protein; an attempt has been made in the study to co-extract all the valuable egg white components in a continuous process. Ovomucin was first isolated by our newly developed two-step method; the resultant supernatant obtained after ovomucin isolation was used as the starting material for ion-exchange chromatography. Anion-exchange chromatography of 100 mM supernatant yielded a flow-through fraction and three other fractions representing ovotransferrin, ovalbumin and flavoproteins. The flow-through fraction was further separated into ovoinhibitor, lysozyme, ovotransferrin and an unidentified fraction which represents 4% of total egg white proteins. Chromatographic separation of 500 mM supernatant resulted in fractions representing lysozyme, ovotransferrin and ovalbumin. This co-extraction protocol represents a global recovery of 71.0% proteins.[Abstract] [Full Text] [Related] [New Search]