Presence of two neutral disaccharides containing N-acetylhexosamine in bovine colostrum as free forms |
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| Authors: | Tadao Saito Takatoshi Itoh Susumu Adachi |
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| Institution: | 1. Laboratory of Food Hygiene, Tohoku Social Welfare University, Kunimi 1-8-1, Japan;2. Department of Animal Science, Tohoku University, Tsutsumidori Amamiyamachi 1-1, Sendai 980, Japan |
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| Abstract: | Two neutral disaccharides which comprise 74.0% of the neutral oligosaccharides other than lactose were isolated from bovine colostrum taken 6 h after parturition. The chemical structures were revealed to be galactosyl-β-1,4-N-acetylglucosamine (N-acetyllactosamine, 70.3%) and N-acetylgalactosaminyl-β-1,4-glucose (3.7%). The two carbohydrates were the newly found oligosaccharides from mammalian milk in the free forms. 7 days after parturition, they had completely disappeared from bovine milk. |
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| Keywords: | Disaccharide Carbohydrate structure (Bovine colostrum) |
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