Nectar Flavonol rhamnosides are floral markers of acacia (Robinia pseudacacia) honey

Journal of Agricultural and Food Chemistry
Pilar TruchadoF A Tomás-Barberán

Abstract

With the objective of finding floral markers for the determination of the botanical origin of acacia (robinia) honey, the phytochemicals present in nectar collected from Robinia pseudacacia flowers were analyzed by high-performance liquid chromatography-tandem mass spectrometry. Eight flavonoid glycosides were detected and characterized as kaempferol combinations with rhamnose and hexose. Acacia honey produced in the same location where the nectar was collected contained nectar-derived kaempferol rhamnosides. This is the first time that flavonoid glycosides have been found as honey constituents. Differences in the stability of nectar flavonoids during honey elaboration and ripening in the hive were shown to be due to hydrolytic enzymatic activity and to oxidation probably related to hydrogen peroxide (glucose-oxidase) activity. Acacia honeys contained propolis-derived flavonoid aglycones (468-4348 microg/100 g) and hydroxycinnamic acid derivatives (281-3249 microg/100 g). In addition, nectar-derived kaempferol glycosides were detected in all of the acacia honey samples analyzed (100-800 microg/100 g). These flavonoids were not detected in any of the different honey samples analyzed previously from different floral origins other...Continue Reading

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Citations

Jul 28, 2012·Journal of Agricultural and Food Chemistry·Graţia I DezmireanSilvio Erler
Dec 6, 2014·TheScientificWorldJournal·Giovanna AronneVeronica De Micco
Jan 12, 2016·Arhiv za higijenu rada i toksikologiju·Dušanka Milojković OpsenicaŽivoslav Tešić
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Feb 11, 2018·Journal of the Science of Food and Agriculture·Angelo GismondiAntonella Canini
Aug 23, 2016·Analytical Chemistry Insights·Thibaut IstasseAurore Richel
Feb 6, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Anna Kurek-GóreckaJerzy Stojko
Jan 26, 2021·Royal Society Open Science·Milica NešovićŽivoslav Tešić
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Nov 1, 2010·Comprehensive Reviews in Food Science and Food Safety·Vilma Kaškonienė, Petras R Venskutonis
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Jun 18, 2009·Journal of Agricultural and Food Chemistry·Pilar TruchadoFrancisco A Tomas-Barberan
Nov 26, 2010·Journal of Agricultural and Food Chemistry·Pilar TruchadoFrancisco A Tomás-Barberán

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