Prediction of spoilage of tropical shrimp (Penaeus notialis) under dynamic temperature regimes

D.S. Dabade, P. Azokpota, M.J.R. Nout, D.J. Hounhouigan, M.H. Zwietering, H.M.W. den Besten

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)

Abstract

The spoilage activity of Pseudomonas psychrophila and Carnobacterium maltaromaticum, two tropical shrimp (Penaeus notialis) spoilage organisms, was assessed in cooked shrimps stored at 0 to 28 °C. Microbiological, chemical and sensory analyses were performed during storage. P. psychrophila had a higher growth rate and showed a higher spoilage activity at temperatures from 0 to 15 °C, while at 28 °C, C. maltaromaticum had a higher growth rate. The spoilage activity of P. psychrophila was found to be higher in cooked shrimp than in fresh shrimp. Observed shelf-life data of shrimps stored at constant temperatures were used to validate a previously developed model that predicts tropical shrimp shelf-life at constant storage temperatures. Models predicting the growth of the spoilage organisms as a function of temperature were constructed. The validation of these models under dynamic storage temperatures simulating temperature fluctuation in the shrimp supply chain showed that they can be used to predict the shelf-life of cooked and fresh tropical shrimps.
Original languageEnglish
Pages (from-to)121-130
JournalInternational Journal of Food Microbiology
Volume210
DOIs
Publication statusPublished - 2015

Keywords

  • shelf-life prediction
  • bacterial-growth
  • sensory characteristics
  • listeria-monocytogenes
  • pseudomonas-fragi
  • microbial model
  • water activity
  • packed fish
  • fresh fish
  • meat

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