title: Characterization of Aronia melanocarpa volatiles by headspace-solid-phase microextraction (HS-SPME), simultaneous distillation/extraction (SDE), and gas chromatography-olfactometry (GC-O) methods.
abstract: The profiles of volatile constituents of berry fruit of two Aronia melanocarpa genotypes were evaluated by headspace-solid-phase microextraction (HS-SPME), simultaneous distillation and extraction (SDE), and gas chromatography-olfactometry (GC-O). In total, 74 volatile compounds were identified in chokeberry juice, 3-penten-2-one, 3,9-epoxy-p-menth-1-ene, and benzaldehyde being the most abundant constituents; however, their percentage concentrations were remarkably different in the HS-SPME and SDE profiles. Twenty two aroma-active compounds were detected and characterized by the trained panelists in HS-SPME using GC-O detection frequency analysis. Olfactometry revealed that ethyl-2-methyl butanoate, ethyl-3-methyl butanoate, ethyl decanoate ("fruity" aroma notes), nonanal ("green" notes), unidentified compound possessing "moldy" odor, and some other volatiles may be very important constituents in formation of chokeberry aroma of both analyzed plant cultivars.
authors.affiliation: Department of Food Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania.
authors.forename: Vilma
authors.initials: V
authors.lastname: Kraujalytė
authors.forename: Erich
authors.initials: E
authors.lastname: Leitner
authors.forename: Petras Rimantas
authors.initials: PR
authors.lastname: Venskutonis
mesh_terms: D001547:Benzaldehydes / Q000032:analysis; D001628:Beverages / Q000032:analysis; D002849:Chromatography, Gas / Q000379:methods*; D057168:Distillation; D005638:Fruit / Q000737:chemistry; D006801:Humans; D009812:Odorants / Q000032:analysis; D064367:Olfactometry; D010422:Pentanones / Q000032:analysis; D046936:Photinia / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D012903:Smell; D052617:Solid Phase Microextraction / Q000379:methods*; D013729:Terpenes / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000737:chemistry
chemical_list: D001547:Benzaldehydes; D010422:Pentanones; D010936:Plant Extracts; D013729:Terpenes; D055549:Volatile Organic Compounds; C057461:1-pentene-3-one; C113989:p-menth-1-ene; C032175:benzaldehyde