Chemical structures of three neutral oligosaccharides obtained from horse (thoroughbred) colostrum

¹Laboratory of Bioindustrial Food Chemistry, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.

Comparative Biochemistry and Physiology. B, Comparative Biochemistry

|January 1, 1991

Abstract:

1. Three neutral oligosaccharides were obtained from horse colostrum by ion-exchange, activated charcoal column and preparative paper chromatographies. 2. The following structures were elucidated by methanolysis, methylation analysis and 75 MHz 13C-NMR spectroscopy; Gal beta 1-4GlcNAc beta 1-3Gal beta 1-4Glc (HM-3a), Gal beta 1-4GlcNAc beta 1-6Gal beta 1-4Glc (HM-3b) and Gal beta 1-4GlcNAc beta 1-3[Gal beta 1-4GlcNAc beta 1-6]Gal beta 1-4Glc (HM-5). 3. HM-3a and HM-5 have been found in human milk, named as lacto-N-neotetraose and lacto-N-neohexaose, respectively. HM-3b has been isolated from goat milk. 4. An homology and heterogeneity were assumed among the following animal species' milk oligosaccharides: horse, human, goat and tammar wallaby.

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Abstract:

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