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Molecules 2008, 13(9), 2220-2228;

Evaluation of Flavonoids and Furanocoumarins from Citrus bergamia (Bergamot) Juice and Identification of New Compounds

DiSTAM - Department of Food Science and Microbiology, Division of Human Nutrition, University of Milan, 20133 Milan, Italy
Specchiasol s.r.l., Via Rizzi 1/3 - 37012 Bussolengo (Vr), Italy
Author to whom correspondence should be addressed.
Received: 1 August 2008 / Revised: 1 September 2008 / Accepted: 9 September 2008 / Published: 18 September 2008
(This article belongs to the Special Issue Phenolics and Polyphenolics)
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Bergamot juice (BJ) contains different classes of flavonoids (e.g. flavanones and flavones) that can exert beneficial effects on human health. The aim of this study was to evaluate the qualitative and quantitative composition of a BJ obtained from fruits harvested in Southern Italy (Calabria) at the end of their maturation period. The identity of several flavonoids and furanocoumarins was assessed by co-chromatography, UV spectra and molecular weight comparison. The unknown compounds were dissociated by induced collision (CID-MS) and their identity established through the characteristic ions product. By this approach a complete profile of about twenty compounds (furano-coumarins, flavonoids C- and O-glycosides) present in BJ was obtained. Furthermore, three acylated flavanones, present in amounts of 20.1±1.1, 89.3±2.2 and 190.1±3.1 mg/L, respectively, and which seem to correspond to di-oxalate derivatives of neoeriocitrin, naringin and neohesperidin, were identified for the first time in BJ. The other main flavanones were naringin, neohesperidin and neoeriocitrin, and their content was 167.5±1.8, 123.9±1.7 and 73.3±1.6 mg/L, respectively. Concerning flavones, the total amount in BJ was about 160 mg/L and the main ones were vicenin-2, stellarin-2, rhoifolin and neodiosmin. Bergapten and bergamottin were the primary furanocoumarins in BJ and their amounts were 9.0±0.4 and 18.2±0.5 mg/L, respectively. View Full-Text
Keywords: Flavonoids; Furanocoumarins; Bergamot juice; LC; Mass spectrometry Flavonoids; Furanocoumarins; Bergamot juice; LC; Mass spectrometry

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Gardana, C.; Nalin, F.; Simonetti, P. Evaluation of Flavonoids and Furanocoumarins from Citrus bergamia (Bergamot) Juice and Identification of New Compounds. Molecules 2008, 13, 2220-2228.

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