同位素分析技术在食醋质量鉴别中的应用Modern Isotope Analysis Technologies for the Authentication of Natural Vinegars
翟宗德,吴小梅
摘要(Abstract):
由于近期发生的一系列涉及食醋掺伪的事件,使得食醋的质量安全问题成为社会关注的焦点问题之一。开发食醋中掺入工业醋酸的检测方法是对食醋掺伪进行鉴定的关键手段。现有的国家标准采用放射性同位素检测方法,需要特殊的检测设备与条件,目前全国范围内只有复旦大学放射医学研究所具有检测资质,因此该技术在全国的普及尚有较大的局限性。稳定同位素分析技术,特别是点特异性天然同位素分馏核磁共振技术(SNIF-NMR)与同位素比率质谱仪测定技术(IRMS)在食醋质量鉴别方面的应用研究在国际上已经取得了一系列研究成果。两种技术结合能够对食醋的生产原料来自于C3或C4植物进行溯源,能够鉴定食醋中是否掺入了工业醋酸成分。文章对稳定同位素技术在食醋质量鉴别方面的最新研究进展进行了综述。
关键词(KeyWords): 同位素质谱;点特异性天然同位素分馏核磁共振;食醋;工业醋酸;掺伪
基金项目(Foundation): 上海应用技术学院引进人才科研启动项目资助(YJ2011)
作者(Author): 翟宗德,吴小梅
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