Subjects
-Abstract
This study was carried out to determine quality changes of Nile tilapia (Oreochromis niloticus) and grey mullet (Mugil cephalus) stored in ice. Changes in sensory and microbiological attributes were evaluated during 16 and 14 day of storage for Nile tilapia and grey mullet, respectively. The overall sensory scores of both raw and steamed Nile tilapia and grey mullet gradually decreased with the ice storage. Highly significant correlation was found between the overall sensory scores of both raw and steam cooked Nile tilapia and grey mullet and storage time. The shelf life of Nile tilapia and grey mullet were 8 days in ice. The mesophilic aerobic bacterial count of Nile tilapia and flathead grey mullet flesh increased gradually during storage in ice from 2.38x103and 7.67 x102 CFU/g flesh to 4.10x104 and 2.13 x104 CFU/g flesh after eight day of ice storage. The psychrophilic aerobic bacterial count increased gradually during storage in ice from 5.97x102 and 4.76 x103CFU/g flesh to 6.30x104 and 1.66 x105 CFU/g flesh after eight day of ice storage. Psychrophiles had faster rate of increment during storage in ice, compared to mesophiles. Based on results of sensory evaluation the iced raw and steamed Nile tilapia and grey mullet samples could be classified into three categories of quality grade as follows :(1) high quality grade (stored in ice for not more than 4 days) (2) acceptable grade (stored in ice for more than 4 days, but less than 8 days), (3) unacceptable grade (stored in ice for more than 8 days).
DOI
10.21608/asejaiqjsae.2017.3723
Keywords
Sensory evaluation, Bacteriological Evaluation, Nile tilapia, Grey mullet, Ice storage, Quality
Authors
MiddleName
-Affiliation
Food Science and Technology Dept., Faculty of Agriculture, El-Shatby,
Alexandria University, Alexandria, Egypt.
Email
-City
-Orcid
-MiddleName
-Affiliation
Food Science and Technology Dept., Faculty of Agriculture, El-Shatby,
Alexandria University, Alexandria, Egypt.
Email
-City
-Orcid
-MiddleName
-Affiliation
Food Science and Technology Dept., Faculty of Agriculture, El-Shatby,
Alexandria University, Alexandria, Egypt.
Email
-City
-Orcid
-MiddleName
-Affiliation
Food Science and Technology Dept., Faculty of Agriculture, El-Shatby,
Alexandria University, Alexandria, Egypt.
Email
-City
-Orcid
-Article Issue
July-September
Link
https://asejaiqjsae.journals.ekb.eg/article_3723.html
Detail API
https://asejaiqjsae.journals.ekb.eg/service?article_code=3723
Publication Title
Alexandria Science Exchange Journal
Publication Link
https://asejaiqjsae.journals.ekb.eg/
MainTitle
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