Rapid Gas Sensor Measurements to Determine Spoilage of Capelin (Mallotus villosus)

G. Ólafsdóttir*, E. Martinsdóttir, E. H. Jónsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Changes in volatile compounds of capelin were monitored by gas sensor measurements, sensory evaluation, and TVB analysis. Capelin was stored at 5 and 0°C for 8 days, and the effect of 0.2% added acetic acid was studied at 5°C. An instrument with electrochemical gas sensors was developed to monitor the volatile compounds of capelin during spoilage such as alcohols, amines, and sulfur compounds. The results of the gas sensor measurements showed good reproducibility, and the responses of selected sensors correlated well with classical TVB measurements. GC analysis of sulfur compounds was done simultaneously to identify and determine the relative abundance of these compounds in the headspace of capelin during storage, and a descriptive sensory evaluation scheme was developed.

Original languageEnglish
Pages (from-to)2654-2659
Number of pages6
JournalJournal of Agricultural and Food Chemistry
Volume45
Issue number7
DOIs
Publication statusPublished - Jul 1997

Other keywords

  • Fish spoilage
  • Gas sensors
  • Sensory analysis
  • Volatile compounds

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