title: Headspace, volatile and semi-volatile organic compounds diversity and radical scavenging activity of ultrasonic solvent extracts from Amorpha fruticosa honey samples.
abstract: Volatile organic compounds of Amorpha fruticosa honey samples were isolated by headspace solid-phase microextraction (HS-SPME) and ultrasonic solvent extraction (USE), followed by gas chromatography and mass spectrometry analyses (GC, GC-MS), in order to obtain complementary data for overall characterization of the honey aroma. The headspace of the honey was dominated by 2-phenylethanol (38.3-58.4%), while other major compounds were trans- and cis-linalool oxides, benzaldehyde and benzyl alcohol. 2-Phenylethanol (10.5-16.8%) and methyl syringate (5.8-8.2%) were the major compounds of ultrasonic solvent extracts, with an array of small percentages of linalool, benzene and benzoic acid derivatives, aliphatic hydrocarbons and alcohols, furan derivatives and others. The scavenging ability of the series of concentrations of the honey ultrasonic solvent extracts and the corresponding honey samples was tested by a DPPH (1,1-diphenyl-2-picrylhydrazyl) assay. Approximately 25 times lower concentration ranges (up to 2 g/L) of the extracts exhibited significantly higher free radical scavenging potential with respect to the honey samples.
authors.affiliation: Faculty of Chemistry and Technology, University of Split, N. Tesle 10/V, 21000 Split, Croatia. igor@ktf-split.hr
authors.forename: Igor
authors.initials: I
authors.lastname: Jerković
authors.forename: Zvonimir
authors.initials: Z
authors.lastname: Marijanović
authors.forename: Janja
authors.initials: J
authors.lastname: Kezić
authors.forename: Mirko
authors.initials: M
authors.lastname: Gugić
mesh_terms: D000080462:Acyclic Monoterpenes; D001547:Benzaldehydes / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D019905:Benzyl Alcohol / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D001713:Biphenyl Compounds / Q000737:chemistry; D002849:Chromatography, Gas; D007887:Fabaceae / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D006722:Honey / Q000032:analysis*; D039821:Monoterpenes / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D010626:Phenylethyl Alcohol / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D010851:Picrates / Q000737:chemistry; D052617:Solid Phase Microextraction; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D014835:Volatilization
chemical_list: D000080462:Acyclic Monoterpenes; D001547:Benzaldehydes; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D039821:Monoterpenes; D010851:Picrates; D055549:Volatile Organic Compounds; C018584:linalool; C004931:1,1-diphenyl-2-picrylhydrazyl; D019905:Benzyl Alcohol; D010626:Phenylethyl Alcohol; C032175:benzaldehyde
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