400 5 Aroma Compounds
Fig. 5.38.Odor thresholds of alkyl pyrazines (according toWagneret al., 1999). The odor threshold in pmol/lair
is given in brackets
odor threshold remains very high. Seventy alkyl
pyrazines have been identified in foods. However,
in dilution analyses, the compounds which appear
with a high odor intensity are only P7 and P16
in addition to P5, P13 and P17 (cf. 5.3.1.7). This
is explainable by the specificity of odor detection
of alkyl pyrazines discussed here.
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