HRMAS-NMR spectroscopy was used to assess the metabolic profile of sweet pepper (Capsicum annuum L.). 1D and 2D NMR spectra were performed directly on a few milligrams of fruit pieces without any chemical and/or physical manipulationof the sample, allowing the assignment of several compounds. Organic acids, fatty acids, amino acids and minor compounds as trigonelline, C4-substituted pyridine, choline and cinnamic derivatives were observed within a single experiment. Some compounds are peculiar for pepper and contribute to define its overall quality, proving that HRMAS-NMR is a reliable analysis complementary to standard tools used in food science, in principle applicable to any foodstuff.
Metabolic profiling of sweet pepper (capsicum annuum l.) by means of HRMAS-NMR spectroscopy / Ritota, Mena; S., Cozzolino; S., Marconi; P., Sequi; M., Valentini; Marini, Federico. - In: ACTA HORTICULTURAE. - ISSN 0567-7572. - STAMPA. - 932:(2012), pp. 279-284. (Intervento presentato al convegno XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Physiology from Cell to Fruit Production System tenutosi a Lisbona (Portogallo)) [10.17660/ActaHortic.2012.932.40].
Metabolic profiling of sweet pepper (capsicum annuum l.) by means of HRMAS-NMR spectroscopy
RITOTA, Mena;MARINI, Federico
2012
Abstract
HRMAS-NMR spectroscopy was used to assess the metabolic profile of sweet pepper (Capsicum annuum L.). 1D and 2D NMR spectra were performed directly on a few milligrams of fruit pieces without any chemical and/or physical manipulationof the sample, allowing the assignment of several compounds. Organic acids, fatty acids, amino acids and minor compounds as trigonelline, C4-substituted pyridine, choline and cinnamic derivatives were observed within a single experiment. Some compounds are peculiar for pepper and contribute to define its overall quality, proving that HRMAS-NMR is a reliable analysis complementary to standard tools used in food science, in principle applicable to any foodstuff.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
