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http://dx.doi.org/10.5657/KFAS.2017.0243

Chemical and Microbiological Properties on Sanitary of Swimming Crab Portunus trituberculatus as Sources for Seafood Products  

Kang, Young Mi (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Park, Sun Young (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Lee, Kyung Don (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Shon, Jae Hak (Major in Food Biotechnology, Division of Bioindustry, Silla University)
Choi, Jae Suck (Major in Food Biotechnology, Division of Bioindustry, Silla University)
Lee, Jung Suck (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Heu, Min Soo (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Kim, Jin-Soo (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.50, no.3, 2017 , pp. 243-249 More about this Journal
Abstract
Crabs are a popular seafood item. However, they can harbor many microorganisms, heavy metals, radioactivity, and benzo(a)pyrene, which are potential health risks to humans. The objective of this study was to assess the potential of swimming crabs for use in foods such as Ganjang-gejang, by measuring their sanitary biological and chemical properties. Viable microbial cell counts in swimming crab samples were $3.4{\times}10^2-6.7{\times}10^4CFU/g$, but no coliform, Escherichia coli, or pathogenic bacteria, such as Vibrio parahaemolyticus, Enterohemorrhagic E. coli, Listeria monocytogenes, Staphylococcus aureus, or Salmonella spp., were detected. Heavy metal concentrations in swimming crab samples were non-detectable to 0.112 mg/kg for total mercury, non-detectable to 0.435 mg/kg for lead, and 0.115-0.836 mg/kg for cadmium. Benzo(a)pyrene concentrations ranged from $0.025-0.060{\mu}g/kg$, and the volatile basic nitrogen content ranged from 8.7-15.6 mg/100 g. No radioactivity was detected in samples. These results suggest that swimming crabs are viable for use in seafood products.
Keywords
Crab; Swiming crab; Seafood product; Ganjang-gejang; Crab sanitation;
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