Clenbuterol Residues in Plasma and Urine Samples of Food-Producing Pigs During and After Subchronic Exposure to a Growth-Promoting Dose

Summary: The aim of the study is to evaluate the suitability of plasma and urine as matrices for clenbuterol residue determination during and after its subchronic administration at a growth-promoting dose to male pigs, using previously validated enzyme-linked immunosorbent assay (ELISA) as a screeni...

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Permalink: http://skupni.nsk.hr/Record/nsk.NSK01000735905/Details
Matična publikacija: Food technology and biotechnology
47 (2009), 1 ; str. 67-74
Glavni autor: Pleadin, Jelka (-)
Ostali autori: Babić-Gojmerac, Tihomira (-), Bratoš, Igor, Lipej, Zoran, Novosel, Dinko, Vulić, Ana
Vrsta građe: Članak
Jezik: eng
Predmet:
Online pristup: Food Technology and Biotechnology
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035 |a (HR-ZaNSK)000735905 
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100 1 |a Pleadin, Jelka 
245 1 0 |a Clenbuterol Residues in Plasma and Urine Samples of Food-Producing Pigs During and After Subchronic Exposure to a Growth-Promoting Dose /  |c Jelka Pleadin, Tihomira Gojmerac, Igor Bratoš, Zoran Lipej, Dinko Novosel, Ana Vulić. 
300 |b Ilustr. 
504 |a Bibliografija: 21 jed 
520 8 |a Summary: The aim of the study is to evaluate the suitability of plasma and urine as matrices for clenbuterol residue determination during and after its subchronic administration at a growth-promoting dose to male pigs, using previously validated enzyme-linked immunosorbent assay (ELISA) as a screening method and liquid chromatography tandem mass spectrometry (LC-MS/MS) as a confirmation method. A high correlation coefficient between these analytical methods was obtained for both urine (R=0.9800) and plasma (R=0.9970) concentrations. Study results show the plasma and urine concentration to vary greatly during oral treatment with clenbuterol for 28 days. The peak urine concentration ((88.54±50.54) ng/mL) recorded on day 21 was 40-fold peak plasma concentration ((2.25±1.54) ng/mL). After withdrawal period, the peak urine clenbuterol concentration ((42.93±10.52) ng/mL) recorded on day 0 was 24-fold plasma concentration ((1.79±0.97) ng/mL). The maximum allowed concentration of 0.5 ng/g in the liver as a regulated matrix for control of clenbuterol abuse was achieved in plasma on day 3 ((0.52±0.26) ng/mL) and in urine on day 7 of treatment withdrawal ((0.45±0.11) ng/mL). Study results indicate that urine and plasma may be suitable matrices for the control of clenbuterol abuse during fattening of food-producing pigs but have a limited value because of the rapidly decreasing concentration upon treatment withdrawal, in plasma in particular 
653 0 |a Raktopamin  |a Klenbuterol  |a Svinja 
700 1 |a Babić-Gojmerac, Tihomira 
700 1 |a Bratoš, Igor 
700 1 |a Lipej, Zoran 
700 1 |a Novosel, Dinko 
700 1 |a Vulić, Ana 
773 0 |t Food technology and biotechnology  |x 1330-9862  |g 47 (2009), 1 ; str. 67-74  |w nsk.(HR-ZaNSK)000174173 
981 |b B03/09 
998 |a Luko100506  |c vol2o121016 
856 4 2 |u http://hrcak.srce.hr/ftb  |y Food Technology and Biotechnology