Document Detail

Sensory evaluation of character impact components in an apple model mixture.
MedLine Citation:
PMID:  12142324     Owner:  NLM     Status:  MEDLINE    
Food aromas generally are complex mixtures of volatiles. In the present study, we investigated the joint effects of hexyl acetate, trans-2-hexenal and 1-hexanol on the multi-attribute perception of an apple aroma. The first two substances were identified earlier as positive contributors to the apple aroma (high character impact), whereas the third component was identified as an irrelevant or negative contributor (low character impact). Aroma quality was quantified using a set of eight graphic rating scales. All three components had significant effects on the aroma profiles. These effects consist mainly of an effect of each component on the attribute that described its individual character and an effect of all three components on ratings on the main character attribute 'apple'. As expected, the high impact components increased 'apple' ratings, whereas the low character impact component decreased 'apple' ratings. Furthermore, intensity ratings on the attribute that corresponded with the odour of the low impact component were suppressed by the presence of high impact components. These results indicate that the contributions of odorants to the mixture's aroma are not linear combinations of separate odour intensities, because sensory interactions were observed. In addition, humans detect components in complex mixtures more accurately than studies on identification performance have suggested. We conclude that for an adequate assessment of the effects of multiple mixture components on changes in aroma perception, it is sufficient to employ multiple response scales measuring intensities of attributes that are distinctive with respect to the expected qualitative changes. Results of this approach should be subjected to multivariate methods of statistical analysis.
Johannes H F Bult; Hendrick N J Schifferstein; Jacques P Roozen; Estanislau Dalmau Boronat; Alphons G J Voragen; Jan H A Kroeze
Related Documents :
10331894 - Marathons in altitude.
16018344 - Saccadic velocity and pupillary reflexes during acclimatization to altitude (4300 m).
1542134 - Effects of altitude on endogenous carboxyhemoglobin levels.
1399154 - Prospective time estimation and hypnotizability in a simulator design.
6908844 - Vanadate and phosphate ions reduce tension and increase cross-bridge kinetics in chemic...
14571954 - Growth hormone molecular heterogeneity and exercise.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemical senses     Volume:  27     ISSN:  0379-864X     ISO Abbreviation:  Chem. Senses     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-07-26     Completed Date:  2003-01-21     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8217190     Medline TA:  Chem Senses     Country:  England    
Other Details:
Languages:  eng     Pagination:  485-94     Citation Subset:  IM    
Department of Agrotechnology and Food Sciences, Laboratory of Food Chemistry, Wageningen University and Research Centre, The Netherlands.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Acetates / analysis
Aldehydes / analysis
Data Interpretation, Statistical
Evaluation Studies as Topic
Hexanols / analysis
Middle Aged
Odors / analysis*
Reference Values
Smell / physiology*
Reg. No./Substance:
0/Acetates; 0/Aldehydes; 0/Hexanols; 111-27-3/1-hexanol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The "jaundice hotline" for the rapid assessment of patients with jaundice.
Next Document:  Unisex pheromone detectors and pheromone-binding proteins in scarab beetles.