The volatiles from 600 g of freshly popped corn were
isolated by solvent extraction and sublimation in vacuo
and the most important odorants evaluated by AEDA.
The FD chromatogram (Figure 1) from the volatile fraction
displayed 23 odorants in the FD factor range 8-512 of
which compounds 3 (roasty) and 20 (fatty) followed by 2
(roasty, coffee-like) and 19 (spicy) showed the highest FD
factors. The results of the identification experiments
obtained from an extract of 1.2 kg of popcorn are
summarized in Table 11. The data reveal that 2-acetyl-
1-pyrroline (3), (E,E)-2,6decadienal(20)2, -furfurylthiol
(2), and 4-vinyl-2-methoxyphenol (19) were the most
important odorants in popcorn.