Aroma-Active Compounds in Skipjack Tuna Sauce

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Abstract

Volatile compounds in skipjack tuna (Katsuwonus pelanis) viscera (STV) and tuna sauce (TS) made from STV were analyzed by vacuum simultaneous distillation-solvent extraction/gas chromatography/mass spectrometry/olfactometry and aroma extract dilution analysis. Predominant odorants in STV were lipid-derived compounds, such as (E,E)-2,4-heptadienal (stale/peanut-like), (E,Z)-2,6-nonadienal (cucumber-like), (E,E)-2,4-decadienal (fatty/rancid fat-like), (E)-2-nonenal (stale, bitter), and (Z)-4-heptenal (fishy/rancid), and unidenified compounds having grassy, fresh fish-like odors. In contrast to STV, potent odorants in TS were mostly thermally generated compounds such as 3-(methylthio)propanal (baked potato-/soy sauce-like), dimethyl trisulfide (cooked cabbage-like), and 3-methylbutanal (dark chocolate-like). Additional potent odorants in TS were (E,E)-2,4-heptadienal, (E)-2-nonenal, phenylacetaldehyde (honeysuckle-like), and two unidentified compounds having nutty, baked potato-, vitamin-, and cooked rice-like odors. Two amino acids, glutamic acid and aspartic acid, were predominant both samples.

Original languageEnglish (US)
Pages (from-to)1123-1128
Number of pages6
JournalJournal of Agricultural and Food Chemistry
Volume46
Issue number3
DOIs
StatePublished - Mar 1998
Externally publishedYes

Keywords

  • AEDA
  • Aroma-active
  • Skipjack tuna viscera
  • Tuna flavor
  • Tuna sauce

ASJC Scopus subject areas

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)

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