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1. Shipped samples |
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| 2.Sensory evaluation |
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| Expert can memorize the key odors. |
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| 3.Pretreatment |
| (Extraction and ondensation) |
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| 4.Identification |
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| The extracted condensate is analyzed by the Gas chromatography olfactometry and the Gas chromatograph mass spectrometer system. |
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| The individual odors are sniffed by the expert who can characterize the
compounds one by one. |
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| And also, the key odor founded by the Gas chromatography olfactometry is finally identified by the GC/MS. |
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| 5.Result |
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| The analytical results shows that the key material of the off-odor is 2,4,6
tri-bromo anisole. |
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| GC/MS analysis |
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