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. 2021 Jan 4;26(1):223. doi: 10.3390/molecules26010223

Figure 3.

Figure 3

Abundance of heterocyclic volatile compounds derived from other amino acids in the model systems during incubation at 25 or 37 °C and classified according to the dry curing stages (I-Initial stage, 1D-1st drying stage, 2D-2nd drying stage). (a) I-25 °C, (b) 1D-25 °C, (c) 2D-25 °C, (d) I-37 °C, (e) 1D-37 °C, (f) 2D-37 °C. Symbols represent the different compound: Furan (■); Thiazole (♦); Methylpyrazine (▲); Furfural (●).