期刊
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
卷 93, 期 7, 页码 1665-1672出版社
WILEY
DOI: 10.1002/jsfa.5947
关键词
Red chicory; red-spotted chicory; metabolomics; PLS-DA
资金
- Ministero per le politiche agricole, alimentari e forestali (Mipaaf)
BACKGROUND Analytical traceability of PGI and PDO foods (Protected Geographical Indication and Protected Denomination Origin respectively) is one of the most challenging tasks of current applied research. RESULTS Here we proposed a metabolomic approach based on the combination of 1H high-resolution magic angle spinningnuclear magnetic resonance (HRMAS-NMR) spectroscopy with multivariate analysis, i.e. PLS-DA, as a reliable tool for the traceability of Italian PGI chicories (Cichorium intybus L.), i.e. Radicchio Rosso di Treviso and Radicchio Variegato di Castelfranco, also known as red and red-spotted, respectively. The metabolic profile was gained by means of HRMAS-NMR, and multivariate data analysis allowed us to build statistical models capable of providing clear discrimination among the two varieties and classification according to the geographical origin. CONCLUSION Based on Variable Importance in Projection values, the molecular markers for classifying the different types of red chicories analysed were found accounting for both the cultivar and the place of origin. (c) 2012 Society of Chemical Industry
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