Petals of edible flowers (EF) are rich in biologically active compounds with many proven benefits for human health. However, studies on the effects of EF in humans after consumption are lacking. This pilot explorative study evaluated the changes in urinary phenolic excretion in healthy volunteers to whom different doses of phenolics from edible roses (Gourmet Roses™) have been added to a meal. Rose petals were picked fresh once a week for three weeks, showing significantly increasing values of total phenolic content, total anthocyanin content, and antioxidant activity (measured as ferric reducing antioxidant power (FRAP) and as DPPH• and ABTS•+ scavenging activities) from the first to the third week. After the meal, direct associations between urinary phenolics and both the EF phenolic content and the antioxidant activity were found in a multiple regression model. These new insights on EF consumption, to be confirmed by larger trials, suggest that the urinary phenolic excretion of healthy volunteers increases with increasing rose phenolic content.

Compositional Characteristics and Antioxidant Activity of Edible Rose Flowers and Their Effect on Phenolic Urinary Excretion

Devecchi A.
First
;
Demasi S.
;
Saba F.;Rosato R.;Gambino R.;Ponzo V.;de Francesco A.;Bo S.;Scariot V.
2021-01-01

Abstract

Petals of edible flowers (EF) are rich in biologically active compounds with many proven benefits for human health. However, studies on the effects of EF in humans after consumption are lacking. This pilot explorative study evaluated the changes in urinary phenolic excretion in healthy volunteers to whom different doses of phenolics from edible roses (Gourmet Roses™) have been added to a meal. Rose petals were picked fresh once a week for three weeks, showing significantly increasing values of total phenolic content, total anthocyanin content, and antioxidant activity (measured as ferric reducing antioxidant power (FRAP) and as DPPH• and ABTS•+ scavenging activities) from the first to the third week. After the meal, direct associations between urinary phenolics and both the EF phenolic content and the antioxidant activity were found in a multiple regression model. These new insights on EF consumption, to be confirmed by larger trials, suggest that the urinary phenolic excretion of healthy volunteers increases with increasing rose phenolic content.
2021
71
4
383
392
http://journal.pan.olsztyn.pl/Compositional-Characteristics-and-Antioxidant-Activity-of-Edible-Rose-Flowers-and,142639,0,2.html
Anthocyanins; Bioactive compounds; Edible flowers; Human study; Polyphenols
Devecchi A.; Demasi S.; Saba F.; Rosato R.; Gambino R.; Ponzo V.; de Francesco A.; Massarenti P.; Bo S.; Scariot V.
File in questo prodotto:
File Dimensione Formato  
2021_Rose_urinary_phenolics_Polish_Journal.pdf

Accesso aperto

Descrizione: Articolo principale-Roses/urinary phenolics-PJFNS
Tipo di file: PDF EDITORIALE
Dimensione 384.03 kB
Formato Adobe PDF
384.03 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1831922
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact