title: Identification of character-impact odorants in a cola-flavored carbonated beverage by quantitative analysis and omission studies of aroma reconstitution models.
abstract: Thirty aroma-active components of a cola-flavored carbonated beverage were quantitated by stable isotope dilution assays, and their odor activity values (OAVs) were calculated. The OAV results revealed that 1,8-cineole, (R)-(-)-linalool, and octanal made the greatest contribution to the overall aroma of the cola. A cola aroma reconstitution model was constructed by adding 20 high-purity standards to an aqueous sucrose-phosphoric acid solution. The results of headspace solid-phase microextraction and sensory analyses were used to adjust the model to better match authentic cola. The rebalanced model was used as a complete model for the omission study. Sensory results indicated that omission of a group consisting of methyleugenol, (E)-cinnamaldehyde, eugenol, and (Z)- and (E)-isoeugenols differed from the complete model, while omission of the individual components of this group did not differ from the complete model. These results indicate that a balance of numerous odorants is responsible for the characteristic aroma of cola-flavored carbonated beverages.
authors.affiliation: Department of Food Science and Technology, Faculty of Agro-Industry, Kasetsart University , 50 Ngamwongwan Road, Bangkok 10900, Thailand.
authors.forename: Yaowapa
authors.initials: Y
authors.lastname: Lorjaroenphon
authors.forename: Keith R
authors.initials: KR
authors.lastname: Cadwallader
mesh_terms: D000080462:Acyclic Monoterpenes; D000447:Aldehydes / Q000032:analysis; D002253:Carbonated Beverages / Q000032:analysis*; D003511:Cyclohexanols / Q000032:analysis; D000077591:Eucalyptol; D005054:Eugenol; D005519:Food Preservation; D006801:Humans; D007201:Indicator Dilution Techniques; D039821:Monoterpenes / Q000032:analysis; D009812:Odorants / Q000032:analysis*; D012903:Smell; D012996:Solutions
chemical_list: D000080462:Acyclic Monoterpenes; D000447:Aldehydes; D003511:Cyclohexanols; D039821:Monoterpenes; D012996:Solutions; D005054:Eugenol; C018584:linalool; D000077591:Eucalyptol; C031639:caprylic aldehyde
keywords: aroma reconstitution model; cola-flavored carbonated beverage; odor activity value; omission study; stable isotope dilution assay