Meiho University Institutional Repository:Item 987654321/2267
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    题名: Analysis of free and bound formaldehyde in squid and squid products by gas chromatographyemass spectrometry
    作者: Yeh, Tai-Sheng
    Lin, Tzu-Chun
    Chen, Ching-Chuan
    Wen, Hwui-Mei
    贡献者: 健康暨護理學院
    关键词: Aquatic products;Free formaldehyde
    日期: 2013
    上传时间: 2013-12-11T01:08:39Z (UTC)
    摘要: Formaldehyde can be added illegally as a food preservative in addition to the endogenous
    formaldehyde that naturally occurs in aquatic products. In this study, formaldehyde was
    derivatized from 2,4-dinitrophenylhydrazine and analyzed using gas chromatographyemass
    spectrometry to investigate free and reversibly bound formaldehyde in 10 squid and squid
    products. The results were compared to those obtained by high-performance liquid chromatography
    (HPLC). The limit of detection was 2.0 mg/kg. The total concentrations of free and
    reversibly bound formaldehyde were, on average, higher than the free formaldehyde concentration
    by 26.6 mg/kg. Free formaldehyde made up, on average, 39% of total free and
    reversibly bound formaldehyde. The sum of the concentrations of free and reversibly bound
    formaldehyde was, on average, higher than the free formaldehyde concentration by 19.3 mg/
    kg in the HPLC method. Free formaldehyde made up an average of 39% of total free and
    reversibly bound formaldehyde in the HPLC method. The use of gas chromatographyemass
    spectrometry to detect formaldehyde in aquatic products allowed confirmation through
    retention time and molecular mass information. The monitoring of free formaldehyde in
    aquatic products and proper control of the manufacturing process could help to reduce the
    formaldehyde level in shredded squid products. Finally, exposure to formaldehyde from
    consumption of shredded squid was estimated: it was less than 0.2 mg/kg, which is the oral
    reference dose suggested by the US Environmental Protection Agency.
    關聯: j o u rnal of food and drug a n a l y s i s
    显示于类别:[美容系] 期刊論文

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