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Aroma-Active Compounds in Kimchi during Fermentation

1998; American Chemical Society; Volume: 46; Issue: 5 Linguagem: Inglês

10.1021/jf9706991

1520-5118

Y. J., Hoon Kim, Keith R. Cadwallader,

Tea Polyphenols and Effects

During fermentation, volatile flavor compounds in Kimchi prepared with (FS) and without (C) fish sauce were analyzed by vacuum simultaneous steam distillation−solvent extraction/gas chromatography/mass spectrometry (V-SDE/GC/MS) and GC/olfactometry. On the basis of their high odor intensities (OI ≥ 3), eight sulfur-containing compounds having garlic-, garlic salt-, onion-, green onion-, and cooked cabbage-like odors and six unknowns with garlic-, onion-, and green onion-like odors were predominant in both FS and C during fermentation. The most intense odorants (OI ≥ 4.0) in Kimchi included dimethyl trisulfide, diallyl disulfide isomers, diallyl trisulfide, methylallyl disulfide, and an unknown (garlic salt- and/or mustard-like). In addition to these, other odorants (OI ≥ 3.5) such as 3-(methylthio)propanal (baked/boiled potato-like), (E,Z)-2,6-nonadienal (cucumber-like), phenylacetaldehyde (honeysuckle-like), linalool (floral- and/or flower-like), (E,E)-2,4-decadienal (fatty and/or sweet), 2,3-butanedione (buttery), unknown (meaty), unknown (apple sauce-like), and unknown (vitamin and/or cooked rice-like) may play important roles in formation of Kimchi flavor. Addition of fish sauce did not noticeably affect the aroma profile of Kimchi. Keywords: Kimchi; aroma-active compound; volatile flavor