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American Journal of Clinical Nutrition, Vol 54, 829-835, Copyright © 1991 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Essential fatty acid composition of human colostrum triglycerides: its relationship with adipose tissue composition

JC Martin, T Niyongabo, L Moreau, JM Antoine, M Lanson, C Berger, F Lamisse, P Bougnoux and C Couet
Laboratoire de Biologie des Tumeurs, Hopital Bretonneau, Tours, France, Paris.

The relationships between essential fatty acid (EFA) composition of colostrum and white adipose tissue (WAT) were examined on day 5 after delivery in 69 healthy women. Fatty acid composition was assessed by capillary gas chromatography, and 33 fatty acids were detected in colostrum and in WAT. Total polyunsaturated fatty acid (PUFA) content was similar in colostrum and in WAT (15.7 +/- 3.1% and 16.1 +/- 3.8%, respectively), but long-chain PUFA content was higher in colostrum than in WAT (2.9 +/- 0.6% and 1 +/- 0.2%, respectively; P less than 0.001). The concentrations of linoleic acid were significantly correlated between colostrum and WAT (r = 0.77, P less than 0.0001). No correlation was found for alpha-linolenic acid. The relationships between long-chain PUFA composition of colostrum and WAT suggested that individual factors along with tissue specificity of the mammary gland are involved in either the capacity of desaturating and chain- elongating pathways and/or incorporation of long-chain PUFAs into colostrum.


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