期刊
JOURNAL OF DAIRY SCIENCE
卷 93, 期 12, 页码 5572-5587出版社
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2010-3151
关键词
Bactrian camel; milk oligosaccharide; colostrum; sialyl oligosaccharide
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan
- Bio-oriented Technology Research Advancement Institution (BRAIN), National Agriculture and Food Research Organization (NARO, Saitama, Japan)
- Yotsuba Milk Products Co (Sapporo, Hokkaido, Japan)
Bactrian camel milk and colostrum are commonly used as foods in Mongolia, whose people believe that these products promote human health. It has been hypothesized that milk oligosaccharides are biologically significant components of human milk, acting as receptor analogs that inhibit the attachment of pathogenic microorganisms to the colonic mucosa, and as prebiotics, which stimulate the growth of bifidobacteria within the infant colon. To evaluate their biological significance, we studied the oligosaccharides present in samples of Bactrian camel milk and colostrum. Using H-1-nuclear magnetic resonance spectroscopy, we identified and characterized the following oligosaccharides of camel colostrum: Gal(beta 1-4) [Fuc(alpha 1-3)]Glc (3-fucosyllactose), Gal(beta 1-3)Gal(beta 1-4) Glc (3'-galactosyllactose), Gal(beta 1-6)Gal(beta 1-4)Glc (6'-galactosyllactose), Neu5Ac(alpha 2-3)Gal(beta 1-4)Glc (3'-sialyllactose), Neu5Ac(alpha 2-6)Gal(beta 1-4)Glc (6'-sialyllactose), Neu5Ac(alpha 2-3)Gal(beta 1-3)Gal(beta 1-4)Glc (sialyl-3'-galactosyllactose), Neu5Ac(alpha 2-6)Gal(beta 1-4) GlcNAc(beta 1-3)Gal(beta 1-4)Glc (sialyllacto-N-tetraose c), Neu5Ac(alpha 2-3)Gal(beta 1-3)[Gal(beta 1-4)GlcNAc(beta 1-6)] Gal(beta 1-4)Glc (sialyllacto-N-novopentaose a), Gal(beta 1-3) [Neu5Ac(alpha 2-6)Gal(beta 1-4)GlcNAc(beta 1-6)] Gal(beta 1-4)Glc (sialyllacto-N-novopentaose b); and Neu5Ac(alpha 2-6) Gal(beta 1-4)GlcNAc(beta 1-3)[Gal(beta 1-4)GlcNAc(beta 1-6)] Gal(beta 1-4)Glc (monosialyllacto-N-neohexaose). The oligosaccharides in the mature camel milk were characterized as 3'-galactosyllactose, Gal(beta 1-3)[Gal(beta 1-4) GlcNAc(beta 1-6)]Gal(beta 1-4)Glc (lacto-N-novopentaose I), and 3'-sialyllactose.
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