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- W1999612091 abstract "The ability of chemical sensors to differentiate and match samples of apple flavors and essences is of interest tothe flavor and food industries. This study evaluated the feasibility of using a prototype chemical sensor for the differentiationof apple flavors and essences. Volatile headspace gases from 20 flavors and four essences were measured with a gaschromatograph and the prototype chemical sensor. A principal component analysis (PCA) reduced the chemical sensor datainto two principal factors that accounted for 96% of the variance in the sensor measurements. A hierarchical cluster analysis(HCA) of the PCA data put two flavors and essences into one cluster and the remaining 22 into another. The HCA analysisalso provided a breakdown of the clusters into subgroups by similarity. The subgroups were used to determine matches witheight unknowns, six flavors, and two essences. The prototype chemical sensor correctly identified all six unknown flavors.Three were absolute matches, and three matched more than one unknown (one of which was the correct flavor). Visualcomparisons of gas chromatograms of known and unknown samples led to absolute matches of five of the six unknown flavorsamples. Neither measuring method identified the two unknown essences. These results suggest that it is feasible to use thechemical sensor prototype to differentiate between apple flavors or essences. One potential use of chemical sensor technologyis in quality control and food safety programs of food ingredients and products." @default.
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- W1999612091 date "2005-01-01" @default.
- W1999612091 modified "2023-10-18" @default.
- W1999612091 title "ELECTRONIC NOSE CHEMICAL SENSOR VERSUS GAS CHROMATOGRAPHY: A FEASIBILITY STUDY FOR THE DIFFERENTIATION OF APPLE FLAVORS AND ESSENCES" @default.
- W1999612091 doi "https://doi.org/10.13031/2013.19993" @default.
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