Consumption of Whey in Combination with Dairy Medium-Chain Fatty Acids (MCFAs) may Reduce Lipid Storage due to Urinary Loss of Tricarboxylic Acid Cycle Intermediates and Increased Rates of MCFAs Oxidation

被引：14

作者：

Amer, Bashar ^{[1
]}

Clausen, Morten Rahr ^{[1
]}

Bertram, Hanne Christine ^{[1
]}

Bohl, Mette ^{[2
]}

Nebel, Caroline ^{[1
]}

Zheng, Hong ^{[1
]}

Skov, Thomas ^{[3
]}

Larsen, Mette Krogh ^{[1
,4
]}

Gregersen, Soren ^{[2
]}

Hermansen, Kjeld ^{[2
]}

Dalsgaard, Trine Kastrup ^{[1
]}

机构：

[1] Aarhus Univ, Dept Food Sci, Tjele, Denmark

[2] Aarhus Univ Hosp, Dept Endocrinol & Internal Med, Aarhus, Denmark

[3] Univ Copenhagen, Fac Sci, Dept Food Sci, Frederiksberg C, Denmark

[4] Arla Foods, Videbaek, Denmark

来源：

MOLECULAR NUTRITION & FOOD RESEARCH | 2017年 / 61卷 / 12期

关键词：

medium-chain fatty acids oxidation; metabolic syndrome; milk medium-chain fatty acids; milk proteins; weight loss; PERFORMANCE LIQUID-CHROMATOGRAPHY; ENERGY-EXPENDITURE; MASS SPECTROMETRY; AMINO-ACIDS; PROTEIN; METABOLOMICS; WOMEN; TRIGLYCERIDES; INTERVENTION; METABOLISM;

D O I：

10.1002/mnfr.201601048

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Scope: The aim of the paper is to investigate whether changes in the metabolome could explain observed changes in body composition in overweight adults after consumption of butter with high level of medium-chain fatty acids (MCFAs) in combination with casein or whey. Methods and results: With GC-TOF and LC-Q/MS, metabolites in plasma and urine from a 12-week randomized double-blinded human intervention including 52-abdominally overweight adults were analyzed. The participants consumed 63 g per day of milk fat (high or low in MCFAs) and 60 g per day of protein (whey or casein). Urinary loss of the tricarboxylic acid cycle metabolites and a concomitantly increase of glycerol in blood were observed in the whey + high-MCFAs group, indicating potential lower anabolic processes, such as lipogenesis, by draining substrates. High intake of MCFAs resulted in elevated level of urinary adipic (independently of protein type) and plasma sebacic acid (with whey), indicating a potential increase in oxidation of MCFAs, which might lead to energy loss. Conclusion: The type of protein showed highest effect on the overall metabolic profiles, but omega-oxidation of MCFAs in the liver seemed to be the main reason for the observed reduction in body fat mass after consumption of high MCFAs, independent of type of protein.

引用

页数：11

共 53 条

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