title: Seasonal variation in secondary metabolites of edible shoots of Buck's beard [Aruncus dioicus (Walter) Fernald (Rosaceae)].
abstract: Aruncus dioicus (Walter) Fernald is an herbaceous plant belonging to the Rosaceae family. In the northern regions of Italy young shoots of A. dioicus are collected and used as vegetable. No studies on the chemical composition of young shoots of A. dioicus have been reported so far. Thus, the aim of the present paper was to develop and validate a comprehensive chromatographic method allowing the identification and quantification of chemical compounds occurring in A. dioicus shoots harvested at different developmental stages. The results showed that shoots contain mainly polyphenols. Twenty-four compounds were detected. Caffeoylglucose derivatives were recognized as major compounds. It was also confirmed that shoots contain the cyanogenic compound prunasin at all investigated vegetation stages. It was shown that the prunasin content significantly increases during plant development, thus justifying the belief that after the development of the first green leaves, shoots should not be used for culinary purposes any longer.
authors.affiliation: Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Unità di ricerca per il Monitoraggio e la Pianificazione Forestale (CREA-MPF), piazza Nicolini 6 loc. Villazzano, 38123 Trento, Italy.
authors.forename: Pietro
authors.initials: P
authors.lastname: Fusani
authors.affiliation: Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
authors.forename: Jakub P
authors.initials: JP
authors.lastname: Piwowarski
authors.affiliation: Institute of Pharmacy, Department of Pharmacognosy, University of Innsbruck, CCB, Innrain 80-82, Innsbruck, Austria.
authors.forename: Christian
authors.initials: C
authors.lastname: Zidorn
authors.affiliation: Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
authors.forename: Anna K
authors.initials: AK
authors.lastname: Kiss
authors.affiliation: Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria, Unità di ricerca per il Monitoraggio e la Pianificazione Forestale (CREA-MPF), piazza Nicolini 6 loc. Villazzano, 38123 Trento, Italy.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Scartezzini
authors.affiliation: Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland. Electronic address: sgranica@wum.edu.pl.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Granica
mesh_terms: D002138:Calibration; D002851:Chromatography, High Pressure Liquid; D007558:Italy; D057230:Limit of Detection; D009570:Nitriles / Q000032:analysis; D010936:Plant Extracts / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry*; D059808:Polyphenols / Q000032:analysis; D015203:Reproducibility of Results; D027824:Rosaceae / Q000737:chemistry*; D012621:Seasons
chemical_list: D009570:Nitriles; D010936:Plant Extracts; D059808:Polyphenols; C019063:prunasin
keywords: Aruncus dioicus; Buck’s beard; Polyphenols; Prunasin; Rosaceae