Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
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Distribution of N-Acetylneuraminic Acid and Sialylglycan in Eggs in Silky Fowl, M. Koketsu, E. Sakuragawa, R. J. Linhardt, H. Ishihara, British Journal of Poultry Science, 44, 145-148, 2003.
The distribution of sialic acid in the eggs of original Silky fowl was investigated. The sialic acid contents of the yolk, albumen and the chalaza of a single egg were 205·2, 11·96 and 0·83 mg, respectively. 2. The sialic acid content of the yolk of Silky eggs was 11·5-fold higher than that of a conventional domestic fowl yolk. 3. Sialic acid isolated from Silky yolk was entirely N-acetylneuraminic acid (NeuAc). No N-glycolylneuraminic acid or O-acetyl containing sialic acid was observed. 4. The structure of the major sialylglycan in Silky egg yolk was determined to be a disialyl-biantennary chain in which the NeuAc residues were α2-6 linked to glucose. No α2-3 linkage was observed. 5. Thus, the Silky fowl's egg provides an excellent source of NeuAc and sialylglycan.;
British Journal of Poultry Science, 44, 145-148; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; British Poultry Science; https://harc.rpi.edu/;