期刊
FOOD CONTROL
卷 126, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2021.108086
关键词
Allium essential oil; Authentication; Multicollector-inductively coupled plasma; mass spectrometry; Isotope ratio mass spectrometry
资金
- Association Nationale de la Recherche et de la Technologie (ANRT, Paris, France)
- Albert Vieille SAS
- ISA (Institut des Sciences Analytiques, Villeurbanne, France)
A methodology for authentication of Allium species essential oils through multi element stable isotope analysis was developed, assessing the naturalness of the oils through compound specific 813C and 834S, with the use of chemometric models to evaluate purity.
Pure and natural essential oils of Allium species are primarily used in the food industry, but due to their low yield, production quantities can be difficult to achieve and thus can be highly expensive. Due to these problems, adulterations are a reality in this field. The purpose of this research is to develop a multi element stable isotope analysis methodology for authentication of the essential oils of leek, onion, shallot, and chive. Naturalness of these essential oils was achieved by assessment of compound specific 813C and 834S: an addition of 5% of synthetic compound can be detected. Chemometric models were undertaken to assess purity by distinction of the Allium samples according to their species origin using bulk stable and compound specific 813C, 82H, 834S, and compositions of their major metabolites dipropyl disulfide, dipropyl trisulfide, methyl propyl disulfide, and methyl propyl trisulfide.
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