Quality Assessment of a common Nigerian Marine Fish, Croaker (Pseudotolithus elongatus) under different Storage Conditions
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Date
2010-02-10
Authors
Okoro, C. C.
Aboaba, O. O.
Babajide, O. J.
Journal Title
Journal ISSN
Volume Title
Publisher
New York Science Journal
Abstract
Quality assessment of a common Nigerian marine fish, Croaker (Pseudotholitus elongatus) was carried
out at various storage temperatures such as ambient (28oC), Refrigeration (4 oC) and Frozen state (-5 oC) using
sensory, microbiological and biochemical method of evaluation. At ambient temperature, the shelf life of the fish
was estimated to be 12hrs. At this time, the fish was still sensorily acceptable, the bacterial load of the tissue was 2.7x 104 cfu/g, TMA-N and TVB-N values were 5.2 mg/100g and 24.8mg/100g respectively while the pH was 7.1. At refrigeration temperature (40C), the shelf life of the fish sample was estimated to be 6 days. At this time, the fish was
still sensorily acceptable, the bacterial load of the tissue was 7.1 x 104 cfu/g, TMA-N and TVB-N values were
5.60mg/100g and 32.90mg/100g respectively while the pH was 6.8. At freezing temperature (-50C), the fish was still
sensorily acceptable at the estimated shelf life of 3 weeks. The bacterial load of the tissue was 6.3 x 103 cfu/g. TMAN
and TVB-N values were 7.50mg/100g and 30.80mg/100g respectively while the pH was 7.1. The limits of
freshness stated here were mostly within the proposed limits of acceptability by some international quality standard
organisations for marine fishes.
Description
Scholarly article
Keywords
Marine fishes, Pseudotolithus elongatus, quality assessment, shelf life and storage temperature , Marine fishes , Pseudotolithus elongatus , quality assessment , shelf life and storage temperature Marine fishes
Citation
Okoro, C.C., Aboaba, O.O. and Babajide, O.J., 2010. Quality assessment of a common Nigerian marine fish, croaker (Pseudotolithus elongatus) under different storage conditions. NY Sci J, 3, pp.29-36.