Chemical quality and microbial load of edible tissue of Japanese threadfin bream (Nemipterus japonicus) during storage at-18° C

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MAGHSOUDLOO TIRDAD; PAZIRA ABD ALRAHIM; Mahini abed; GHANBARI Farshad

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Journal: JOURNAL OF MARINE BIOLOGY Year:2019 | Volume:10 | Issue:40 Page(s): 93-103

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Title

Chemical quality and microbial load of edible tissue of Japanese threadfin bream (Nemipterus japonicus) during storage at-18° C

Author(s)

MAGHSOUDLOO TIRDAD | PAZIRA ABD ALRAHIM | Mahini abed | GHANBARI Farshad | Issue Writer Certificate

Keywords

FreezingQ2

Chemical qualityQ1

Microbial loadQ1

Edible tissueQ1

Nemipterus japonicasQ1

Abstract

This research aims to investigate the effects of Freezing and frozen storage at-18° C on the Chemical quality and Microbial load of Edible tissue of Nemipterus japonicus. 24 samples of fish with average weight and length of 660 ± 23. 3 g and 31 ± 1. 65 cm were obtained from the fish market of Bushehr seaport in autumn 2015 and were stored for 180 days in a freezer. Chemical features (including crude protein, crude fat, ash, moisture, pH, total Volatile Nitrogen and Peroxide) and Microbial load (total bacterial count) were determined monthly. Data were analyzed using the SPSS (18th edition) for Windows program. The results of this research indicated that the amounts of crude protein, crude fat, ash and moisture of fresh samples were 15. 80 ± 0. 20, 4. 27 ± 0. 21, 1. 63 ± 0. 54 and 78. 64 ± 0. 77 %, respectively; whereas these amounts were changed to 15. 50 ± 0. 23, 4. 07 ± 0. 06, 2. 79 ± 0. 19 and 77. 32 ± 0. 56 %, respectively after 180 days of frozen storage. The amounts of pH, total volatile nitrogen and peroxide of fresh samples were 6. 90 ± 0. 04, 13. 78 ± 0. 22 mg N2/100g and 0. 91 ± 0. 09 meq O2/kg, respectively; whereas these amounts were changed to 7. 82 ± 0. 15, 17. 17 ± 0. 31 mg N2/100g and 1. 99 ± 0. 11 meq O2/kg, respectively after 180 days of frozen storage. Microbial analysis showed that total bacterial count in fresh sample was 3. 11 ± 0. 13 log CFU/g that was changed to 3. 56 ± 0. 11 log CFU/g after 180 days of frozen storage. According to these results and by comparing the results with the standards, Nemipterus japonicas Edible tissue had acceptable quality after 180 days frozen storage.

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APA: Copy

MAGHSOUDLOO, TIRDAD, PAZIRA, ABD ALRAHIM, Mahini, abed, & GHANBARI, Farshad. (2019). Chemical quality and microbial load of edible tissue of Japanese threadfin bream (Nemipterus japonicus) during storage at-18° C. JOURNAL OF MARINE BIOLOGY, 10(40 ), 93-103. SID. https://sid.ir/paper/406785/en

Vancouver: Copy

MAGHSOUDLOO TIRDAD, PAZIRA ABD ALRAHIM, Mahini abed, GHANBARI Farshad. Chemical quality and microbial load of edible tissue of Japanese threadfin bream (Nemipterus japonicus) during storage at-18° C. JOURNAL OF MARINE BIOLOGY[Internet]. 2019;10(40 ):93-103. Available from: https://sid.ir/paper/406785/en

IEEE: Copy

TIRDAD MAGHSOUDLOO, ABD ALRAHIM PAZIRA, abed Mahini, and Farshad GHANBARI, “Chemical quality and microbial load of edible tissue of Japanese threadfin bream (Nemipterus japonicus) during storage at-18° C,” JOURNAL OF MARINE BIOLOGY, vol. 10, no. 40 , pp. 93–103, 2019, [Online]. Available: https://sid.ir/paper/406785/en

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