Application of Stable Carbon Isotopes in Detection of Food Adulteration and Traceability
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Abstract:
Due to the fractionation of stable carbon isotopes in plant photosynthesis, stable carbon isotope ratio analysis (SCIRA) can be used to detect food adulteration during different photosynthetic pathways. Meanwhile, climatic or geographic factors also affect stable carbon isotope fractionation, and can therefore be explored as individual traceability indicators or in combination with other factors. Fractionation patterns of stable carbon isotopes within the same molecule can be produced via different decomposition reactions, which can be measured using specific natural isotope fractionation of nuclear magnetic resonance (SNIF-NMR). In addition, stable carbon isotopes can be used as a marker to determine the veterinary drug residues by isotope dilution mass spectrometry (IDMS). Thus, stable carbon isotope technique can be effectively used in the detection of food adulteration and food traceability. Here, current status of research regarding stable carbon isotopes in the detection of food adulteration and traceability was reviewed, highlighting potential applications of this technique to help improve the current food detection techniques in China.
