Energy Value of a Fat High in Stearic Acid |
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Authors: | G.S. RANHOTRA J.A. GELROTH S.D. LEINEN |
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Affiliation: | The authors are with the Nutrition Research Group, American Institute of Baking, 1213 Bakers Way, P. O. Box 3999, Manhattan, KS 66505–3999. |
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Abstract: | A fat containing 92.1% stearic acid (tristearin) was evaluated for energy value using shortening (9 kcal/g) and mineral oil (0 kcal/g) as controls and young rats as the test model. Energy value was calculated based on efficiency of conversion of estimated gross energy intake to carcass energy over a 3-wk period. Rats fed the shortening-based diet deposited more than double the fat and significantly more protein in the carcass than rats fed the tristearin-based diet. Rats fed the tristearin-based diet deposited significantly more fat and protein than rats fed the mineral oil-based diet. Based on these observations, the estimated energy value of tristearin was calculated as 3 kcal/g. |
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Keywords: | energy value stearic acid tristearin |
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