A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta

Analysis of Nτ-methylhistidine is intricate and time consuming. In the present study, a modified technique using high-performance liquid chromatography, which utilizes a reversed-phase separation with ion pairing and post column fluorescence derivatization for the analysis of Nτ-meth...

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Main Authors: Yahya Z. Eid, Akira Ohtsuka, Kunioki Hayashi
Format: Article
Language:English
Published: Japan Poultry Science Association 2001-10-01
Series:The Journal of Poultry Science
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jpsa/38/4/38_4_354/_pdf/-char/en
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author Yahya Z. Eid
Akira Ohtsuka
Kunioki Hayashi
author_facet Yahya Z. Eid
Akira Ohtsuka
Kunioki Hayashi
author_sort Yahya Z. Eid
collection DOAJ
description Analysis of Nτ-methylhistidine is intricate and time consuming. In the present study, a modified technique using high-performance liquid chromatography, which utilizes a reversed-phase separation with ion pairing and post column fluorescence derivatization for the analysis of Nτ-methylhistidine in chicken feed and excreta is described. Two ml of the hydrolyzed sample was applied directly into the ion-exchange resin column without evaporation of HCl to roughly separate Nτ-methylhistidine from acidic and neutral amino acids. The Nτ-methylhistidine fraction was eluted with 1M pyridine and then evaporated, and the residue was dissolved in the mobile phase and subjected to high-performance liquid chromatography. The present method shortened the time needed to complete the assay by about 30min per sample and improved the separation of Nτ-methylhistidine.
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spelling doaj.art-6cda17bc6b454c2a9bd8a41ad68988622023-05-30T00:25:17ZengJapan Poultry Science AssociationThe Journal of Poultry Science1346-73951349-04862001-10-0138435435710.2141/jpsa.38.354jpsaA Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and ExcretaYahya Z. Eid0Akira Ohtsuka1Kunioki Hayashi2Department of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima UniversityDepartment of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima UniversityDepartment of Biochemical Science and Technology, Faculty of Agriculture, Kagoshima UniversityAnalysis of Nτ-methylhistidine is intricate and time consuming. In the present study, a modified technique using high-performance liquid chromatography, which utilizes a reversed-phase separation with ion pairing and post column fluorescence derivatization for the analysis of Nτ-methylhistidine in chicken feed and excreta is described. Two ml of the hydrolyzed sample was applied directly into the ion-exchange resin column without evaporation of HCl to roughly separate Nτ-methylhistidine from acidic and neutral amino acids. The Nτ-methylhistidine fraction was eluted with 1M pyridine and then evaporated, and the residue was dissolved in the mobile phase and subjected to high-performance liquid chromatography. The present method shortened the time needed to complete the assay by about 30min per sample and improved the separation of Nτ-methylhistidine.https://www.jstage.jst.go.jp/article/jpsa/38/4/38_4_354/_pdf/-char/ennτ-methylhistidinehigh-performance liquid chromatography
spellingShingle Yahya Z. Eid
Akira Ohtsuka
Kunioki Hayashi
A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
The Journal of Poultry Science
nτ-methylhistidine
high-performance liquid chromatography
title A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
title_full A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
title_fullStr A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
title_full_unstemmed A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
title_short A Modified Method for Measuring Nτ-Methylhistidine in Chiken Feed and Excreta
title_sort modified method for measuring n tau methylhistidine in chiken feed and excreta
topic nτ-methylhistidine
high-performance liquid chromatography
url https://www.jstage.jst.go.jp/article/jpsa/38/4/38_4_354/_pdf/-char/en
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