Spoilage of lightly salted lumpfish (Cyclopterus lumpus) roe at 5°C

Merethe Basby, V.F. Jeppesen, Hans Henrik Huss

Research output: Contribution to journalJournal articlepeer-review

Abstract

Lightly salted lumpfish roe (3.5–4.8% fw/w] salt in the water-phase, pH 5.4, vacuum-packed) was stored at 5°C. After 2 1/2 or 3 months of storage, different degrees of spoilage, caused by bacterial activity, occurred in eleven roe batches. Off-odors ranged from no or very weak odors to strong sulphury, sour odors. The microflora consisted of lactic acid bacteria, Enterobacteriaceae and Vibrio spp. Concentration of lactic acid, acetic acid, trimethylamine and total volatile bases were unrelated to spoilage odors. Volatile sulfur compounds (H2S, probably CS2, CH3SH and CH3CH2SH or CH3SCH3), produced during storage, appeared to be contributors to spoilage odors.
Original languageEnglish
JournalJournal of Aquatic Food Product Technology
Volume7
Issue number4
Pages (from-to)23-34
ISSN1049-8850
DOIs
Publication statusPublished - 1998

Keywords

  • Lightly salted lumpfish roe
  • Microbiology
  • Spoilage indicators
  • Off-odors
  • Volatile sulfur compounds

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