Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS.

Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS. Research Abstract Details 

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Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS. Abstract Text:

Yun-Jeong Hong,Maciej Turowski,Jiann-Tsyh Lin,Wallace H Yokoyama,Yun-Jeong Hong,Maciej Turowski,Jiann-Tsyh Lin,Wallace H Yokoyama,Yun-Jeong Hong,Maciej Turowski,Jiann-Tsyh Lin,Wallace H Yokoyama,

The rapid rise in obesity-related diseases has increased interest in oral and dietary agents that disrupt fat metabolism, resulting in the excretion of dietary lipids in the feces. In this study, a rapid and convenient liquid chromatography method to comprehensively analyze fecal lipids in a single injection was developed. An evaporative light-scattering detector (ELSD) for routine analysis or atmosphere pressure chemical ionization tandem mass spectrometry [(+)APCI-MS/MS] for structural confirmation and peak purity was used. The method was applied to characterize lipid components of feces from hamsters fed high-fat diets with either 5% microcrystalline cellulose or 5% hydroxypropyl methylcellulose (HPMC) fibers, to test the effect of HPMC on lipid metabolism. HPMC is a nonfermentable, soluble cellulose fiber. The fecal lipid components identified using this method includes two secondary bile acids, deoxycholic acid, lithocholic acid, and neutral sterols including cholesterol, coprostanol, stigmastanol, and sitosterol. The profile of fecal lipid components was compared between two groups. It was found that the bile acid excretion was increased 2-fold in HPMC-fed hamsters. More interestingly, diacylglycerides and triacylglycerides were detected in feces from hamsters on HPMC-included high-fat diets. We believe that this is the first report of excretion of acylglycerides following neutral soluble fiber feeding.

Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS. Publishing Authors By Initials

YJ Hong,M Turowski,JT Lin,WH Yokoyama,YJ Hong,M Turowski,JT Lin,WH Yokoyama,YJ Hong,M Turowski,JT Lin,WH Yokoyama,

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Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of agricultural and food chemistry

VOLUME: 55

Page Numbers: 9750-7

Journal Abbreviation: J. Agric. Food Chem.

ISSN: 0021-8561

DAY: 3

MONTH: 11

YEAR: 2007

Simultaneous Characterization of Bile Acid, Sterols, and Determination of Acylglycerides in Feces from Soluble Cellulose-Fed Hamsters Using HPLC with Evaporative Light-Scattering Detection and APCI-MS. Information

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LANGUAGE: eng

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AFFILIATION: yhong@pw.usda.gov.

Country: United States

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MEDLINETA: J Agric Food Chem

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