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Metabolomic characterization of 5 native Peruvian chili peppers (Capsicum spp.) as a tool for species discrimination

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dc.contributor.author Espichán, F.
dc.contributor.author Rojas, R.
dc.contributor.author Quispe, F.
dc.contributor.author Cabanac, G.
dc.contributor.author Marti, G.
dc.date.accessioned 2022-06-01T13:53:57Z
dc.date.available 2022-06-01T13:53:57Z
dc.date.issued 2022
dc.identifier.uri https://hdl.handle.net/20.500.12866/11733
dc.description.abstract Many species of chili peppers have overlapping morphological characters and delimitation by visual descriptors in many cases fails to differentiate one species from another. In Peru, there are 413 accessions of native chili pepper and 296 accessions of rocotos conserved in the Germplasm Collections of the National Institute of Agrarian Innovation (INIA), of which five accessions (three species from three locations) were selected for the present metabolomic study. The Discrimination of the three species of native chili peppers and identification of biomarkers was performed using untargeted metabolomic approach based on profiling by UHPLC-HRMS and multivariate data analysis. The samples of fresh chili peppers (whole fruit) from Chincha area were used to construct an OPLS-DA model. To validate the biomarkers (identified 15 biomarkers, mainly flavonoids), an external validation set of the OPLS-DA model was constructed using Chiclayo and Huaral collection datasets. Consequently, the OPLS-DA based on Chincha samples model has a high predictive capacity demonstrating that the biomarkers have a high probability of continuity in any culture space, being successful in discriminating the species by untargeted metabolomics. en_US
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Food Chemistry
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Metabolomic en_US
dc.subject Capsicum en_US
dc.subject OPLS-DA en_US
dc.subject SUS-plot en_US
dc.subject Biomarkers en_US
dc.subject Peruvian native chili peppers en_US
dc.title Metabolomic characterization of 5 native Peruvian chili peppers (Capsicum spp.) as a tool for species discrimination en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1016/j.foodchem.2022.132704
dc.relation.issn 1873-7072


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