Oxygenated heterocyclic compounds to differentiate Citrus spp. essential oils through metabolomic strategies
| Autor: | Jerome Masson, Carlo Bicchi, Erica Liberto, Patrizia Rubiolo, Hugues Brevard, Jean Claude Beolor |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Oxygenated heterocyclic compounds
Citrus Chromatography Gas UHPLC/TOF-MS Orange (colour) Sensitivity and Specificity 01 natural sciences Analytical Chemistry Metabolomics Coumarins Heterocyclic Compounds Furocoumarins Oils Volatile Multivariate data analysis Citrus spp Flavonoids Chromatography Metabolomic strategy Plant Extracts 010405 organic chemistry Chemistry 010401 analytical chemistry General Medicine Discriminant markers 0104 chemical sciences Oxygen Food Science Multivariate Analysis |
| Popis: | This study aimed to characterise and discriminate 44 authenticated commercial samples of citrus essential oils (EO) from seven species (bergamot, lemon, bigarade, orange, mandarin, grapefruit, lime) by analysing the non-volatile oxygenated heterocyclic compounds (OHC) by UHPLC/TOF-HRMS, multivariate data analysis (PCA, PLS-DA) and metabolomic strategies; the OHC fraction includes coumarins, furocoumarins, and polymethoxylated flavonoids. Two different approaches were adopted: (i) targeted profiling based on quantifying 18 furocoumarins and coumarins, some of which are regulated by law, and (ii) targeted fingerprinting based on 140 OHCs reported in citrus essential oils, from which 38 discriminant markers were defined. This approach correctly discriminated the Citrus species; its "sensitivity" to relatively low adulteration rate (10%) was highly satisfactory. The proposed method is complementary to that of analysing the citrus EO volatile part by GC techniques. |
| Databáze: | OpenAIRE |
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