Postmortem Biochemical and Microbiological Changes in Loricariid Catfish (Pterygoplichthys disjunctivus) Muscle During Ice Storage

Enrique Marquez-Rios, Ramon Pacheco-Aguilar, Juan Carlos Ramirez-Suarez*, Victor M. Ocano-Higuera, Celia O. García-Sifuentes, Susana M. Scheuren-Acevedo, Miguel A. Mazorra-Manzano

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Postmortem biochemical and microbiological changes in loricariid catfish (Pterygoplichthys disjunctivus) muscle were evaluated during ice storage for 20 days. Values of pH remained stable for 15 days (7.4 ± 0.2), and total volatile base-nitrogen (TVB-N) remained under acceptable limits throughout storage, with a final value of 25.2 ± 3.3 mg N/100 g muscle at Day 20. Adenosine-5′-triphosphate (ATP) and derivatives followed a postmortem degradation pattern similar to other species, with the K-value being the best freshness loss indicator. Biochemical and microbiological changes indicated that the shelf life of iced loricariid catfish muscle was 15 days under optimal (0°C) storage conditions.

Original languageEnglish
Pages (from-to)105-113
Number of pages9
JournalJournal of Aquatic Food Product Technology
Volume25
Issue number1
DOIs
StatePublished - 2 Jan 2016

Bibliographical note

Publisher Copyright:
© 2016 Taylor & Francis.

Keywords

  • K-value
  • Pterygoplichthys disjunctivus
  • loricariid catfish
  • microbiological changes
  • postmortem muscle changes

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