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• W2155435049 endingPage "512" @default.
• W2155435049 startingPage "507" @default.
• W2155435049 abstract "Eighteen samples of commercially available Chinese beer were analyzed in order to determine the content of biogenic amines. The method involves pre-column derivatization of the amines with 4-chloro-3,5-dinitrobenzotrifluoride (CNBF) and subsequent analysis by RP-HPLC (reversed phase-high performance liquid chromatography) with diode array detection. The labeled biogenic amines were separated on a Kromasil C18 column (250 mm × 4.6 mm, 5 μm) at room temperature and UV detection was applied at 254 nm. The separation of seven labeled biogenic amines was achieved within 22 min by elution acetonitrile and HAc–NaAc buffers. The method linearity, calculated for each biogenic amine, has a correlation coefficient higher than 0.9925, in concentrations ranging from 2.9 μmol L−1 to 565 μmol L−1. Detection limits of biogenic amines were 0.056–0.87 μmol L−1, at a signal-to-noise ratio of 3. The proposed method has been applied to the quantitative determination of spermine, phenethylamine, spermidine, histamine, tyramine, tryptamine and putrescine in beer with recoveries of 91.9–103.1% and R.S.D. of 2.86–5.63%. Quantitation is relative to external standards. The results showed that each kind of beer examined contained at least three biogenic amines. Putrescine, histamine and tyramine were detected in all samples. Spermidine was detected in 89% of the beers. Spermine, tryptamine and phenylethylamine occurred in 78%, 61% and 44% of the beers examined, respectively. These levels were below the level that may elicit direct adverse reactions for most consumers." @default.
• W2155435049 created "2016-06-24" @default.
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• W2155435049 date "2009-02-01" @default.
• W2155435049 modified "2023-09-27" @default.
• W2155435049 title "Determination of biogenic amines in beer with pre-column derivatization by high performance liquid chromatography" @default.
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• W2155435049 doi "https://doi.org/10.1016/j.jchromb.2008.12.064" @default.
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• W2155435049 hasPublicationYear "2009" @default.
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