alexa A novel approach to the recovery of biologically active oligosaccharides from milk using a combination of enzymatic treatment and nanofiltration.

Author(s): Sarney DB, Hale C, Frankel G, Vulfson EN

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Abstract A new easily scalable approach to the recovery of biologically active oligosaccharides from milk has been developed which relies on the combination of enzymatic treatment of defatted milk using beta-galactosidase and nanofiltration. It was shown that enzymatic hydrolysis of lactose significantly improves the efficiency and selectivity of membrane-based separations. With the best membrane, as much as 6.7 g of oligosaccharides (containing very little contaminating lactose) could be obtained from one liter of defatted human milk in just four nanofiltration cycles. The human milk oligosaccharides recovered by this method were shown to inhibit binding of intimin, an adhesion molecule of enteropathogenic Escherichia coli, to epithelial cells in vitro. No significant difference in the oligosaccharide profile between samples prepared by this method and conventional gel-permeation chromatography was found. The developed approach is also suitable for the recovery of substantial quantities of tri- and tetra-saccharides from caprine milk. Copyright 2000 John Wiley & Sons, Inc.
This article was published in Biotechnol Bioeng and referenced in

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