Three-way modelling of NMR relaxation profiles from thawed cod muscle

Kristina Nedenskov Jensen, Helle Skov Guldager, Bo Munk Jørgensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Low-field 1H nuclear magnetic resonance transverse relaxation was used to measure water mobility and distribution in cod stored at -20°C or -30°C for up to 12 months and subsequently from 0 to 21 days in modified atmosphere at +2°C. The relaxation profiles were decomposed by parallel factor analysis resulting in four first-order relaxation curves from which the relative water pool sizes and the transverse relaxation times (T2) were calculated. The T2-values of the four identified water pools were 37 ms, 56 ms, 126 ms and 361 ms, respectively. The relative size of the water pools, but not the relaxation times, depended on the frozen storage temperature and on the chilled storage period.
Original languageEnglish
JournalJournal of Aquatic Food Product Technology
Volume11
Issue number3/4
Pages (from-to)201-214
ISSN1049-8850
DOIs
Publication statusPublished - 2002

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