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American Journal of Clinical Nutrition, Vol 57, 382-390, Copyright © 1993 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Saturated fatty acid chain length and positional distribution in infant formula: effects on growth and plasma lipids and ketones in piglets

SM Innis, P Quinlan and D Diersen-Schade
Department of Paediatrics, University of British Columbia, Vancouver, Canada.

Human milk contains a large proportion of palmitic acid (16:0) with > 70% esterified to the center sn-2 position of the milk triglyceride. Infant formulas often use 8:0 + 10:0 [medium-chain triglyceride (MCT)] or 12:0 + 14:0 (coconut oil) as the saturated fat. The effect of formula saturated fatty acid composition; 8:0 + 10:0, 12:0 + 14:0, or 16:0 from palm oil or synthesized triglyceride containing predominantly sn-2 16:0 on plasma lipids and fatty acids was studied in piglets. Although the formulas contained similar 18:1 and 18:2n-6, plasma lipid percentages of 18:1 and 18:2n-6 were higher in piglets fed the formula with MCT or coconut oil rather than the formulas with 16:0, or sow milk. The sn-2 16:0 of the synthesized triglyceride had unique properties. Specifically, piglets fed synthesized triglyceride had significantly higher cholesteryl ester 16:0 identical to that in piglets fed sow milk and higher plasma total and high-density- lipoprotein cholesterol than piglets fed the other formulas.


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C. M Nelson and S. M Innis
Plasma lipoprotein fatty acids are altered by the positional distribution of fatty acids in infant formulatriacylglycerols and human milk
Am. J. Clinical Nutrition, July 1, 1999; 70(1): 62 - 69.
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S. M. Innis and R. Dyer
Dietary Triacylglycerols with Palmitic Acid (16:0) in the 2-Position Increase 16:0 in the 2-Position of Plasma and Chylomicron Triacylglycerols, but Reduce Phospholipid Arachidonic and Docosahexaenoic Acids, and Alter Cholesteryl Ester Metabolism in Formula-Fed Piglets
J. Nutr., July 1, 1997; 127(7): 1311 - 1319.
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S. M. Innis, R. A. Dyer, and E. L. Lien
Formula Containing Randomized Fats with Palmitic Acid (16:0) in the 2-Position Increases 16:0 in the 2-Position of Plasma and Chylomicron Triglycerides in Formula-Fed Piglets to Levels Approaching Those of Piglets Fed Sow's Milk
J. Nutr., July 1, 1997; 127(7): 1362 - 1370.
[Abstract] [Full Text]

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F. M. Rioux, S. M. Innis, R. Dyer, and M. MacKinnon
Diet-Induced Changes in Liver and Bile but Not Brain Fatty Acids Can Be Predicted from Differences in Plasma Phospholipid Fatty Acids in Formula- and Milk-Fed Piglets
J. Nutr., February 1, 1997; 127(2): 370 - 377.
[Abstract] [Full Text]


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Copyright © 1993 by The American Society for Nutrition