This work characterises and distinguishes Italian and Asian goji berries, combining three analytical approaches to determine 5 light stable isotope ratios, 57 mineral elements and 14 carotenoids. The study analyses stable isotope ratios and provides full HPLC-DAD-MS characterisation of the carotenoid fraction in goji berries for the first time. The isotopic composition of Italian berries was characterised by δ13C values ranging between −28.2‰ and −25.7‰, δ15N between 2.3 and 7.3‰, δ34S between 2.6 and 7.9‰, and D/H between −112 and −49‰. Italian goji berries were shown to have a particular composition and interesting nutritional characteristics, specifically a higher total carotenoid content (355 mg/100 g dw mean content vs 198 mg/100 g dw) and higher content of some micronutrients: K, B, Cu, Mo, Se, and Zn. On the basis of δ34S, Y, U, Cu, Rb, zeaxanthin palmitate and total carotenoid content, discriminant analysis correctly classified all samples according to their geographical origin
Bertoldi, D.; Cossignani, L.; Blasi, F.; Perini, M.; Barbero, A.; Pianezze, S.; Montesano, D. (2019). Characterisation and geographical traceability of Italian goji berries. FOOD CHEMISTRY, 275: 585-593. doi: 10.1016/j.foodchem.2018.09.098 handle: http://hdl.handle.net/10449/51149
Characterisation and geographical traceability of Italian goji berries
Bertoldi, D.Primo
;Perini, M.
;Barbero, A.;Pianezze, S.;
2019-01-01
Abstract
This work characterises and distinguishes Italian and Asian goji berries, combining three analytical approaches to determine 5 light stable isotope ratios, 57 mineral elements and 14 carotenoids. The study analyses stable isotope ratios and provides full HPLC-DAD-MS characterisation of the carotenoid fraction in goji berries for the first time. The isotopic composition of Italian berries was characterised by δ13C values ranging between −28.2‰ and −25.7‰, δ15N between 2.3 and 7.3‰, δ34S between 2.6 and 7.9‰, and D/H between −112 and −49‰. Italian goji berries were shown to have a particular composition and interesting nutritional characteristics, specifically a higher total carotenoid content (355 mg/100 g dw mean content vs 198 mg/100 g dw) and higher content of some micronutrients: K, B, Cu, Mo, Se, and Zn. On the basis of δ34S, Y, U, Cu, Rb, zeaxanthin palmitate and total carotenoid content, discriminant analysis correctly classified all samples according to their geographical originFile | Dimensione | Formato | |
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