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A Novel Approach Based on Untargeted Lipidomics Reveals Differences in the Lipid Pattern Among Durum and Common Wheat

A Novel Approach Based on Untargeted Lipidomics Reveals Differences in the Lipid Pattern Among Durum and Common Wheat

Laura Righetti, Josep Rubert, Gianni Galaverna, Kamila Hurkova, Chiara Dall'Asta, Jana Hajslova, Milena Stranska-Zachariasova

Food Chem. 2018 Feb 1;240:775-783.

PMID: 28946342

Abstract:

In the present work the possibility of using an untargeted metabolomic strategy to discriminate between common and durum wheat lipidome for an authenticity purpose was explored. A first study was conducted by analyzing 52 samples from two durum and common wheat varieties. Afterwards, an extended and independent sample set (173 samples and five varieties) was used as a confirmatory study to verify the stability and consistency of the models obtained. Putatively identified markers were evaluated applying ROC curves resulting in individual marker AUC >90% both in preliminary and confirmatory study. In addition, digalactosyl diglyceride (DGDG) 36:4 was shown to be an effective marker differentiating between authentic durum wheat and its adulterated admixture down to 3% adulteration level, which is the maximum contamination level allowed by Italian legislation. The results demonstrated that untargeted lipidomics, in conjunction with chemometric tools has a significant potential for screening and detection of wheat fraud.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP41442573	5-Heptadecylresorcinol		41442-57-3	Price
AP70110597	5-Heneicosylresorcinol		70110-59-7	Price

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