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Carbohydrates of pigeon milk and their changes in the first week of secretion

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Title Carbohydrates of pigeon milk and their changes in the first week of secretion
 
Creator Shetty, S.
Salimath, P. V.
Hedge, S. N.
 
Subject 11 Animals
01 Carbohydrates
27 Dairy products
 
Description The carbohydrate content of pigeon crop secretion called pigeon milk (PM) was in the range
of 0.9-1.5%. Sugars of trichloroacetic acid soluble (TCA-S) fraction increased by 67% between
day-1 and day-5 of secretion while those of TCA- insoluble (TCA-P) fraction remained fairly
constant. Sialic acids constituted 59% of carbohydrates. The proportion of lipid- and proteinbound
sialic acids was 5 1070 and 3 1 Yo respectively; the former increased from 41 070 to 68% between
day-1 and day-5 whereas the latter decreased from 45% to 21 070 during the corresponding
period. Some of the sugars of PM were fucose (40%), glucosamine (31%), galactose (12%),
mannose (9070) and glucose (8%). The free sugars whose content was very low (0.05%) included
fucose, mannose, glucose and some unidentified oligosaccharides. The proportion of lipid- and
protein-bound sugars was 31% and 63% respectively; the former decreased by 7% from day-1
to day-5 while the latter increased by 11 Yo during the same period. Gel chromatography of PM
confirmed the presence of sialic acids and glucosamine; the latter existed both in free and bound
form. The nature of changes in the carbohydrate composition of PM in the first week of secretion
was more quantitative than qualitative.
 
Date 1994
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/4850/1/Archives%20of%20Physiology%20and%20Biochemistry%201994%2C%20Vol.%20102%2C%20No.%205%2C%20Pages%20277-280.pdf
Shetty, S. and Salimath, P. V. and Hedge, S. N. (1994) Carbohydrates of pigeon milk and their changes in the first week of secretion. Archives Internationales de Physiologie, de Biochimie et de Biophysique, 102. pp. 277-280.