Metabolomic characterization of italian sweet pepper (Capsicum annum L.) by means of HRMAS-NMR spectroscopy and multivariate analysis

Mena Ritota, Federico Marini, Paolo Sequi, Massimiliano Valentini*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

77 اقتباسات (Scopus)

ملخص

HRMAS-NMR spectroscopy was used to assess the metabolic profile of sweet pepper (Capsicum Annum L.). One-dimensional and two-dimensional NMR spectra, performed directly on sample pieces of few milligrams, hence without any chemical and/or physical manipulation, allowed the assignment of several compounds. Organic acids, fatty acids, amino acids, and minor compounds such as trigonelline, C4-substituted pyridine, choline, and cinnamic derivatives were observed with a single experiment. A significant discrimination between the two sweet pepper varieties was found by using partial least-squares projections to latent structures discrimination analysis (PLS-DA). The metabolites contributing predominantly to such differentiation were sugars and organic and fatty acids. Also a partial separation according to the geographical origin was obtained always by analyzing the NMR data with PLS-DA. Some of the discriminating molecules are peculiar for pepper and contribute to define the overall commercial and organoleptic quality so that HRMAS-NMR proved to be a complementary analysis to standard tools used in food science and, in principle, can be applied to any foodstuff.

اللغة الأصليةEnglish
الصفحات (من إلى)9675-9684
عدد الصفحات10
دوريةJournal of Agricultural and Food Chemistry
مستوى الصوت58
رقم الإصدار17
المعرِّفات الرقمية للأشياء
حالة النشرPublished - سبتمبر 8 2010
منشور خارجيًانعم

ASJC Scopus subject areas

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