Hexose, sialic acid and sialyllactose concentrations in the milk of dairy and non-dairy breed cows

Goto, K.; Urashima, T.; Asakuma, S.; Komoda, M.; Nakamura, T.; Fukuda, K.; Wellnitz, Olga; Bruckmaier, Rupert (2010). Hexose, sialic acid and sialyllactose concentrations in the milk of dairy and non-dairy breed cows. Milchwissenschaft, 65(4), pp. 352-356. Kempten: AVA Agrar-Verlag Allgäu

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It has been suggested that the ratio of lactose to milk oligosaccharides in mammalian milk/colostrum is based on the ratio of expression of a-lactalbumin and glycosyltransferases in the mammary epithelial cells. It has also been suggested that the high secretion of milk in dairy breed cows has been acquired by a high expression of a-lactalbumin expression. As there is a large difference of milk secretion level between dairy and non dairy breed cows, there may be a difference in the ratio of lactose to milk oligosaccharides in milks between dairy and non dairy breed cows. In this study, the concentrations of hexose, sialic acid as well as sialyllactoses, which are representative bovine milk oligosaccharides, were determined in the milks of dairy and non dairy breed cows. The concentration of hexose was significantly higher in the milks of non dairy breed cows than that of dairy breed cows, but there were no significant differences with respect to sialic acid and sialyllactose. The significant difference of the ratio of the concentrations of 3'- and 6'-sialyllactose to total hexose in milk was not observed between dairy and non dairy cows.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Physiology
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Wellnitz, Olga and Bruckmaier, Rupert

ISSN:

0026-3788

Publisher:

AVA Agrar-Verlag Allgäu

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:36

Last Modified:

15 Apr 2019 09:43

Web of Science ID:

000283636500001

URI:

https://boris.unibe.ch/id/eprint/14330 (FactScience: 221273)

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