TABLE 3.

Sigmoidal curve-fitted olfactory thresholds of single typical odorants.

No.	Compound	Odor description	Threshold (μg/L)
			Literature thresholda	Measured thresholdb
1	Isoamyl alcohol	Whiskey, malt, burnt aroma	70,000	79799.49
2	Ethyl acetate	Pineapple aroma	32,600	40738.03
3	Ethyl isovalerate	Apple aroma, fruity aroma	6.89	89.13
4	Ethyl hexanoate	Fruity aroma, sweet aroma	55.3	506.99
5	Ethyl octanoate	Fruity aroma, floral aroma, pineapple aroma	12.9	199.53
6	Ethyl nonanoate	Fruity aroma	1,200	2971.67
7	Ethyl laurate	Waxy aroma, fruity aroma	500	668.34
8	Butanol	Fruity aroma	2,730	6918.31
9	Hexanol	Floral aroma	5,370	5623.41
10	Octanol	Fruity aroma	1,100	2023.02
11	Decanol	Sweet aroma, floral aroma	770	602.56
12	Geraniol	Rose aroma, geranium aroma	30	72.44
13	Linalool	Floral aroma, lavender aroma	15	24.27
14	D-Limonene	Orange aroma, lemon aroma	13.5	247.17
15	α-Terpineol	Fatty aroma, anise aroma, mint aroma	–	1780.27
16	4-Ethylphenol	Smoky aroma	600	1000.00
17	Furfural	Sweet aroma, almond aroma	3,000	2754.23
18	Styrene	Plastic odor, pungent odor	1,400	2041.74
19	3-Hydroxy-2-butanone	Butter aroma, creamy aroma	259	443.61

^aLiterature thresholds were determined in 46% (v/v) ethanol-water matrix.

^bMeasured thresholds were obtained in the 54% (v/v) binary hydroalcoholic model of this study; “–” represents unavailable published data.