Evaluation Of The Effects Of Nano-Chitosan Coating On Quality Properties Of Cynoglossus arel Fish (Bloch & Schneider, 1801) During Superchilling (-3° C)

Ghorabi, Rasa; Khodanazary, Aynaz

doi:10.22092/vj.2018.123422.1501

	Evaluation Of The Effects Of Nano-Chitosan Coating On Quality Properties Of Cynoglossus arel Fish (Bloch & Schneider, 1801) During Superchilling (-3° C)
تحقیقات دامپزشکی و فرآورده‌های بیولوژیک
Article 12, Volume 32, Issue 2, July 2019, Pages 96-104 PDF (814.56 K)
Document Type: Full Research Paper
DOI: 10.22092/vj.2018.123422.1501
Authors
rasa ghorabi^* ¹; aynaz khodanazary²
¹Khoramshahr University of Marine Science and Technology
²Assistant Professor, Departmentof fisheries, Faculty of Marine Natural Resources, Khorramshahr University of Marine Science and Technology, Khoozestan, Iran
Abstract
Fish corruption is due to biological reactions such as microbial growth, lipid oxidation and the activity of fish autolysis enzymes, resulting in a shorter shelf life of fish and other marine products. In the present study, the effects of nanochitosan coating on the quality of fillets of Cynoglossus arel fish were measured during superchilling (-3°C). Thus, largescale tonsole fillets were coated at three groups including the following: nanochitosan (% w/v chitosan and 2% sodium tripolyphosphate, Nanochitosan), treated with 1% glacial acetic acid and distilled water as control sample. The control and coated sample were periodically evaluated for microbiological (total bacterial count (TVC)), physicochemical (total volatile nitrogen (TVBN), thiobarbituric acid (TBA), and trimethylamine (TMA)) and sensory properties (flavor and odor) (the number of sapmles= 45). Results showed that the samples coated with nano-chitosan, had lower Total viable bacteria, volatile nitrogen, thiobarbituric acid, trimethylamine and sensory properties than the control group.In general, the results showed that fish coating with nano-chitosan solution could effectively preserve the optimum quality of the samples and increase their useful life compared to the control group during superchilling at -3°C.
Keywords
Cynoglossus arel; Coating; Nanochitosan; Superchiling

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Evaluation Of The Effects Of Nano-Chitosan Coating On Quality Properties Of Cynoglossus arel Fish (Bloch & Schneider, 1801) During Superchilling (-3° C)