Study summary

Use of electrolyzed water ice for preserving freshness of pacific saury (Cololabis saira)

Journal of Food Protection · 2006

Summary

Abstract

The effects of electrolyzed water ice (EW-ice), compared with traditional tap water ice (TW-ice), on the microbiological, chemical, and sensory quality of Pacific saury (Cololabis saira) stored for a period of up to 30 days at 4 C were evaluated. EW-ice with active chlorine at a concentration of 34 mg/kg was prepared from weak acidic electrolyzed water, whose pH, oxidation-reduction potential, and chlorine content were 5, 866 mV, and 47 mg/liter, respectively. Microbiological analysis showed that EW-ice, compared with TW-ice, markedly inhibited the growth of both aerobic and psychrotrophic bacteria in saury flesh during refrigerated storage, primarily because of the action of active chlorine. Chemical analysis revealed that EW-ice retarded the formation of volatile basic nitrogen and thiobarbituric acid reactive substances and reduced the accumulation of alkaline compounds in the fish flesh in comparison with TW-ice. Sensory analysis confirmed that the freshness of saury was better preserved in EW-ice than in TW-ice and showed that the saury stored in EW-ice had a shelf life that was about 4 to 5 days longer than the fish stored in TW-ice.

Study details

  • Published in: Journal of Food Protection 69.9 (2006): 2199-2204
  • Microbes studied: Total Microbial Count

Source

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Source: Journal of Food Protection 69.9 (2006): 2199-2204

Conditions tested

ParameterValue
OrganismsTotal microbial count
Relevant sectorsFood Processing, Seafood
PublicationJournal of Food Protection, 2006

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