1 H NMR-based fingerprinting of eleven Mexican Capsicum annuum cultivars
Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted H NMR-based metabolomic profiling of 11 cultivars of Capsicum annuum species which are routinely consumed worldwide. The metabolomic fingerprinting detected via H NMR co...
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Published in | Food research international Vol. 121; p. 12 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Canada
01.07.2019
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Abstract | Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted
H NMR-based metabolomic profiling of 11 cultivars of Capsicum annuum species which are routinely consumed worldwide. The metabolomic fingerprinting detected via
H NMR contained 44 metabolites including sugars, amino acids, organic acids, polyphenolic acids and alcohols which were identified by comparison with the literature data, with Chenomx database and by 2D NMR. Statistical approaches based on principal component analysis (PCA) and linear discriminant analysis (LDA) were used to classify the Capsicum annuum cultivars according to their metabolite profile. LDA revealed metabolomic differences and similarities among Capsicum annuum cultivars, whereas hierarchical cluster analysis (HCA) significantly separated the cultivars according to the phylogenetic trees obtained. Substantial endogenous levels of free amino acids and carbohydrates were detected in all the studied cultivars but interestingly, Capsicum annuum cv. mirasol and C. annuum cv. chilaca contained almost three-fold more endogenous levels of vitamin C than the other cultivars. Considering that this antioxidant was found in crude aqueous extracts, its abundance could be directly proportional to its bioavailability for human nutrition. The results suggest that
H NMR is an effective method to determine differences among cultivars of the Capsicum annuum species. |
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AbstractList | Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted
H NMR-based metabolomic profiling of 11 cultivars of Capsicum annuum species which are routinely consumed worldwide. The metabolomic fingerprinting detected via
H NMR contained 44 metabolites including sugars, amino acids, organic acids, polyphenolic acids and alcohols which were identified by comparison with the literature data, with Chenomx database and by 2D NMR. Statistical approaches based on principal component analysis (PCA) and linear discriminant analysis (LDA) were used to classify the Capsicum annuum cultivars according to their metabolite profile. LDA revealed metabolomic differences and similarities among Capsicum annuum cultivars, whereas hierarchical cluster analysis (HCA) significantly separated the cultivars according to the phylogenetic trees obtained. Substantial endogenous levels of free amino acids and carbohydrates were detected in all the studied cultivars but interestingly, Capsicum annuum cv. mirasol and C. annuum cv. chilaca contained almost three-fold more endogenous levels of vitamin C than the other cultivars. Considering that this antioxidant was found in crude aqueous extracts, its abundance could be directly proportional to its bioavailability for human nutrition. The results suggest that
H NMR is an effective method to determine differences among cultivars of the Capsicum annuum species. |
Author | Hidalgo-Martínez, Diego Méndez-Aguilar, Reinaldo Velásquez-Valle, Rodolfo Becerra-Martínez, Elvia Ramírez-Meraz, Moisés Zepeda-Vallejo, L Gerardo Villa-Ruano, Nemesio Florentino-Ramos, Elideth Pérez-Hernández, Nury |
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Keywords | Linear discriminant analysis (LDA) Metabolomic fingerprinting Capsicum spp Biomarkers Nuclear magnetic resonance spectroscopy Principal component analysis (PCA) Cultivars |
Language | English |
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Snippet | Approximately 90% of the chili peppers consumed in the world are harvested in Mexico. The present article describes the untargeted
H NMR-based metabolomic... |
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Title | 1 H NMR-based fingerprinting of eleven Mexican Capsicum annuum cultivars |
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