NMR-based metabolomics for organic farming traceability of early potatoes

Daniela Pacifico*, Lorena Casciani, Mena Ritota, Giuseppe Mandolino, Chiara Onofri, Anna Moschella, Bruno Parisi, Caterina Cafiero, Massimiliano Valentini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

1H HRMAS-NMR spectroscopy was successfully used to determine the metabolic profiles of 78 tubers obtained from three early genotypes grown under organic and conventional management. The variation in total hydrogen, carbon, and nitrogen contents was also assessed. A PLS-DA multivariate statistical analysis provided good discrimination among the varieties and cropping systems (100% unknown samples placed in a cross-validation blind test), suggesting that this method is a powerful and rapid tool for tracing organic potatoes. As a result of the farming system, the nitrogen content decreased by 11-14% in organic tubers, whereas GABA and lysine accumulated in the organic tubers of all clones. Clear variations in primary metabolites are discussed to provide a better understanding of the metabolic pathway modifications resulting from agronomical practices.

Original languageEnglish
Pages (from-to)11201-11211
Number of pages11
JournalJournal of Agricultural and Food Chemistry
Volume61
Issue number46
DOIs
Publication statusPublished - Nov 20 2013

Keywords

  • CHN
  • HRMAS-NMR
  • PLS-DA
  • Solanum tuberosum L.

ASJC Scopus subject areas

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

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