Journal
FOOD CHEMISTRY
Volume 415, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.135791
Keywords
Stable isotopes; Adulteration; Geographical origin; Organic authentication; Chemometrics; CSIA
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Compound-specific stable isotope analysis (CSIA) is a new technique used to authenticate and detect adulteration in food products. This paper provides a review of recent applications of CSIA in various food categories, such as plant and animal origin foods, essential oils, and plant extracts. The study discusses different techniques, applications, and recent studies, highlighting the analytical advantages of CSIA for food authentication.
Compound-specific stable isotope analysis (CSIA) of food products is a relatively new and novel technique used to authenticate food and detect adulteration. This paper provides a review of recent on-line and off-line CSIA applications of plant and animal origin foods, essential oils and plant extracts. Different food discrimination techniques, applications, scope, and recent studies are discussed. CSIA delta 13C values are widely used to verify geographical origin, organic production, and adulteration. The delta 15N values of individual amino acids and nitrate fertilizers have proven effective to authenticate organic foods, while delta 2H and delta 18O values are useful to link food products with local precipitation for geographical origin verification. Most CSIA techniques focus on fatty acids, amino acids, monosaccharides, disaccharides, organic acids, and volatile compounds enabling more selective and detailed origin and authentication information than bulk isotope analyses.. In conclusion, CSIA has a stronger analytical advantage for the authentication of food compared to bulk stable isotope analysis, especially for honey, beverages, essential oils, and processed foods.
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