Quality and shelf-life extension of refrigerated (4°C) Spotted snakehead (Channa punctata) using γ-radiation and food-grade preservative

Authors

  • Efat Ara Mou Department of Zoology, Faculty of Biological Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • Md Enamul Haque Department of Zoology, Faculty of Biological Sciences, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
  • Arzina Hossain Food Technology Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Ganakbari, Savar, Dhaka-1349, Bangladesh
  • Mahfuza Islam Food Technology Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Ganakbari, Savar, Dhaka-1349, Bangladesh
  • Md Kamruzzaman Munshi Food Technology Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Ganakbari, Savar, Dhaka-1349, Bangladesh
  • Khandoker Asaduzzaman Health Physics and Radioactive Management Unit, Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, Ganakbari, Savar, Dhaka-1349, Bangladesh
  • Roksana Huque Food Technology Division, Institute of Food and Radiation Biology, Atomic Energy Research Establishment, Ganakbari, Savar, Dhaka-1349, Bangladesh

DOI:

https://doi.org/10.3329/jujbs.v9i1-2.53702

Keywords:

Gamma radiation, Potassium sorbate, Refrigeration, Shelf-life, Taki

Abstract

Investigations were carried out to evaluate the effect of gamma radiation (1.0 and 1.5 kGy) and food-grade preservative (2% potassium sorbate) on the shelf-life of refrigerated (4°C) Spotted snakehead, Channa punctata (Bloch, 1793). Quality assessments were evaluated by sensory (OS), chemical (TV), microbial (TBC and TCC) analyses. Based on control panel, OS was shown to be gradually decreased with the storage time. Irradiated and potassium sorbate treated samples were found acceptable (edible) up to 28 and 21 days, respectively of storage period. TV were lower in irradiated samples with dose of 1.5 kGy compared to other samples. Though microbial load of each of the irradiated samples were within the acceptable limits up to 28 days but 1.5 kGy dose was found more effective. Gamma radiation in combination with good refrigeration could be most effective treatment for the shelf-life extension and microbiological quality improvement for snakehead preservation. Moreover, this preservation technique may be applicable for other fish species to enhance food safety for public health issues.

Jahangirnagar University J. Biol. Sci. 9(1 & 2): 1-12, 2020 (June & December)

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Published

2021-06-01

How to Cite

Mou, E. A., Haque, M. E., Hossain, A., Islam, M., Munshi, M. K., Asaduzzaman, K., & Huque, R. (2021). Quality and shelf-life extension of refrigerated (4°C) Spotted snakehead (Channa punctata) using γ-radiation and food-grade preservative. Jahangirnagar University Journal of Biological Sciences, 9(1-2), 1–12. https://doi.org/10.3329/jujbs.v9i1-2.53702

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Section

Original Research Articles