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KMID : 0380620030350040648
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Korean Journal of Food Science and Technology
2003 Volume.35 No. 4 p.648 ~ p.652
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The Identification of Blended Sesame Oils by Electronic Nose
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Shin Jung-Ah
Lee Ki-Taek
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Abstract
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Precise and rapid method out for distinguishing blended sesame oils through the electronic nose analysis was developed. Sesame oil was blended with corn oil at the ratio of 95: 5, 90: 10, and 80: 20 (w/w), respectively.
Samples were then analyzed by gas chromatography, SPME-GC/MS, and the electronic nose composed of 12 different metal oxide sensors. Sensitivities (delta R_(gas)/R_(air)) of sensors from electronic nose were analyzed by principal component analysis (PCA). Proportion of the first principal component was 98.76%.
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KEYWORD
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sesame oil , SPME-GC/MS , electronic nose , flavor
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