Feed additives: authenticity assessment using multicomponent-/multielement-isotope ratio mass spectrometry

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• 作者：Markus Greule ; Clarissa H?nsel ; Ulrike Bauermann and Armin Mosandl
• 关键词：Multicomponent ; /multielement ; isotope ratio mass spectrometry analysis ; Feed additives ; Authenticity assessment ; Origanum oil ; Savory oil ; Thyme oil ; Fennel oil ; Enantioselective multidimensional gas chromatography
• 刊名：European Food Research and Technology
• 出版年：2008
• 出版时间：July, 2008
• 年：2008
• 卷：227
• 期：3
• 页码：767-776
• 全文大小：640.1 KB

文摘

Since the ban on growth-promoting antibiotics throughout the EU essential oils are used increasingly as feed additives. In order to ensure a reliable authenticity assessment of those oils appropriate methods were developed. 2H/1H−, 13C/12C− and 18O/16O isotope ratio mass spectrometric analysis of carvacrol from origanum and savory oil, thymol from thyme oil and trans-anethole from fennel oil in combination with IRMS-analysis of minor components and differential analysis is reported. This is the only reliable method to assess the authenticity of these spice oils, provided that an adulteration with major components should be detected. The major component IRMS-measurements is a powerful tool in the authenticity assessment of savory- and thyme oil. In case of origanum and fennel oils a comprehensive analysis including major and minor component-, differential-IRMS as well as enantioselective analysis is essential.