The effect of storage at tropical ambient temperature on the quality and shelf life of grouper (Plectropomus maculatus)

Surti, Titi and Taylor, Anthony and Ma'Ruf, Farid (2001) The effect of storage at tropical ambient temperature on the quality and shelf life of grouper (Plectropomus maculatus). International Journal of Food Science and Technology, 36 (5). pp. 517-522. ISSN 0950-5423

Full content URL: http://dx.doi.org/10.1046/j.1365-2621.2001.00492.x

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Item Type:Article
Item Status:Live Archive

Abstract

Groupers (Plectropomus maculatus) were harvested from holding tanks and stored in ice until assessment rated them unacceptable. Groupers were also subjected to periods (2–12 h) of storage at tropical ambient (29–31 °C) immediately after harvest but prior to cooling in ice. The storage life of grouper stored continuously in ice was 18 days. A 2-h delay before cooling in ice approximately halves the storage life and for every further hour of malstorage the shelf-life was further reduced by approximately 1 day. The total volatile basic nitrogen (TVBN) and hypoxanthine contents were found to be good indicators of freshness in groupers, which were only acceptable with contents <31 mg N 100 per g and <2.0 μmoles g–1, respectively and all unacceptable at >37 mg N 100 per g and 2.3 μmoles g–1 respectively. TMA-N was found not be a reliable indicator of freshness.

Keywords:Hypoxanthine, sensory assessment, TMA, TVBN
Subjects:D Veterinary Sciences, Agriculture and related subjects > D610 Food Science
Divisions:College of Science > National Centre for Food Manufacturing
ID Code:9537
Deposited On:20 May 2013 09:35

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