Gas Chromatography-Olfactometry Analysis and Its Importance in Food Quality Control
Foods are composed of both volatile and non-volatile substances. Some of these compounds contribute to the flavor of foods, in which case they affect its aroma, taste, texture or mouthfeel perception. The flavor stimuli occur when chemicals from the food come into contact with sensory receptor cells in the nose (odor/aroma) and mouth (taste), or when food structures such as emulsions or rigid cell walls affect the chewing process (texture) or interact with mouth mucosa (mouthfeel). Odor/aroma is a broad sensation and encompasses an estimated 10,000 or more different odors (Reineccius, 1993). Therefore, it is not surprising that an important part of flavor research has dealt with the analysis of volatile compounds.
KeywordsVolatile Compound Dynamic Headspace Dimethyl Trisulfide Odor Descriptor Food Quality Control
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- Acree, T. E., and Barnard, J., 1994, Gas chromatography-olfactometry and CharmAnalysis, in: Trends in Flavour Research, H. Maarse, and D. G. van der Heij, eds, Elsevier, Amsterdam, pp. 211–220.Google Scholar
- Casimir, D. J., and Whitfield, F. B., 1978, Flavour impact values: a new concept for assigning numerical values for potency of individual flavour components and their contribution to overall flavour profile, Ber. Int. Fruchtsaftunion, 15:325–345.Google Scholar
- de Roos, K. B., and Wolswinkel, K., 1994, Non-equilibrium partition model for predicting flavour release in the mouth, in: Trends in Flavour Research, H. Maarse, and D. G. van der Heij, eds, Elsevier, Amsterdam, pp. 15–32Google Scholar
- Guth, H., and Grosch, W., 1999, Evaluation of important odorants in foods by dilution techniques, in: Flavor Chemistry, R. Teranishi, E.L. Wick, and I. Hornstein, eds, Kluwer Academic/Plenum Publishers, New York, pp. 377–386.Google Scholar
- Meilgaard, M., Civille, G. V., and Carr, B. T., 1991, Sensory Evaluation Techniques, CRC Press, Boca Raton.Google Scholar
- O’Mahony, M., 1996, Sensory Evalution of Food. Statistical Methods and Procedures, Marcel Dekker, New York.Google Scholar
- Reineccius, G., 1993, Biases in analytical flavor profiles introduced by isolation method, in: Flavor Measurement, C.-T. Ho, and C. H. Manley, eds., Marcel Dekker, New York, pp. 61–76.Google Scholar
- Sanchez, N. B., Ledere, C. L., Nickerson, G. B., Libbey, L. M., and McDaniel, M. R., 1992, Sensory analytical evaluation of beers brewed with three varieties of hops and an unhopped beer, in: Proceedings of the 6 th International Flavor Conference, Rethymnon, Crete, G. Charalambous, ed., Eisevier, Amsterdam, pp. 403–426.Google Scholar
- Teranishi, R., 1998. Challenges in flavor chemistry: an overview, in: Flavor Analysis. Developments in Isolation and Characterization, C. J. Mussinan, and M. J. Morello, eds., American Chemical Society, Washington, DC, pp. 1–6.Google Scholar
- van Ruth, S. M., 2000, Aroma measurement, in: Focus on Biotechnology VII, M. Hofrnan, ed., Elsevier, Amsterdam, The Netherlands.Google Scholar
- van Ruth, S.M., Roozen, J.P., and Legger-Huysman, A., 1997, Relationship between instrumental and sensory time-intensity measurements of imitation chocolate, in: Flavour Perception. Aroma Evaluation, H.-P. Kruse, and M. Rothe, eds, Universität Potsdam, Potsdam, pp. 143–151.Google Scholar