BACKGROUND: The raspberry, Rubus idaeus L., provides several plant parts (as buds) used for food supplements. The aim of this researchwas to establish a technique for chemical composition control of R. idaeus herbal preparations, using chromatographic methods. These methods allowed us to identify and quantify the main phytochemicals, obtaining a specific phytochemical fingerprint (phytocomplex). Combined with two different chemometric methods – clustering analysis and principal component analysis – the raspberry bud extracts of the different cultivars were efficiently characterized. RESULTS: Rubus idaeus buds were identified as a rich source of anti-inflammatory and antioxidant compounds: organic acids, vitamins and catechins were found to be the most discriminating variables by chemometric techniques to differentiate raspberry cultivars. In particular, catechins (13.25%) and flavonols (8.71%) were the most important polyphenolic classes, followed by cinnamic and benzoic acids. CONCLUSION: This study developed a useful tool for R. idaeus extract phytochemical characterization that could be applied also for differentiation and composition control of other herbal preparations.

Analytical fingerprint and chemometrics as phytochemical composition control tools in food supplement analysis: characterization of raspberry bud preparations of different cultivars

DONNO, DARIO;BECCARO, GABRIELE LORIS;CERUTTI, ALESSANDRO KIM;MELLANO, Maria Gabriella;BOUNOUS, Giancarlo
2016

Abstract

BACKGROUND: The raspberry, Rubus idaeus L., provides several plant parts (as buds) used for food supplements. The aim of this researchwas to establish a technique for chemical composition control of R. idaeus herbal preparations, using chromatographic methods. These methods allowed us to identify and quantify the main phytochemicals, obtaining a specific phytochemical fingerprint (phytocomplex). Combined with two different chemometric methods – clustering analysis and principal component analysis – the raspberry bud extracts of the different cultivars were efficiently characterized. RESULTS: Rubus idaeus buds were identified as a rich source of anti-inflammatory and antioxidant compounds: organic acids, vitamins and catechins were found to be the most discriminating variables by chemometric techniques to differentiate raspberry cultivars. In particular, catechins (13.25%) and flavonols (8.71%) were the most important polyphenolic classes, followed by cinnamic and benzoic acids. CONCLUSION: This study developed a useful tool for R. idaeus extract phytochemical characterization that could be applied also for differentiation and composition control of other herbal preparations.
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Rubus idaeus; bioactive compounds; traceability; chemometrics; HPLC
Donno, Dario; Gabriele L Beccaro; Carlen, Christoph; Ançay, André; Cerutti, Alessandro K; Maria Gabriella Mellano; Bounous, Giancarlo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1528553
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