臭氧净化泥蚶技术的研究

Research on the techniques of purifying tegillarca granosa linnaeus with ozone

目的:泥蚶的净化效果及净化后的泥蚶在低温下保存的存活率。方法:采用臭氧对泥蚶净化处理,对用臭氧净化处理泥蚶按食品GB4789-2010进行相关致病菌的检测观察净化效果。结果:臭氧浓度为0.4 mg/L、0.8 mg/L、1.6 mg/L作用24 h,对泥蚶体内细菌总数平均降低率依次分别为94.62%、90.77%、78.84%,大肠菌群与致病菌则由净化前的超标至净化后的全面达标(GB 18406.4-2001)。净化后的泥蚶在5℃的条件下保存,12 d以内存活率100%,且微生物指标依然达标。结论:泥蚶在臭氧浓度为0.4 mg/L以上的海水中处理24 h可达到消毒净化指标要求。

Objective：The purifying effect of Tegillarca granosa Linnaeus and their liveability in low temperature after being purified.Methods： Purify the Tegillarca granosa Linnaeus with ozone and observe the purifying effect by detecting relevant pathogens according to Food GB4789-2010.Results： The average reducing rate of total bacterial count in Tegillarca granosa Linnaeus is 94.62%,90.77%,78.84% with 0.4 mg/L,0.8 mg/L,1.6 mg/L ozone concentration working for 24 hours and the coliform and pathogens reach the mark after being purified（GB 18406.4-2001.The purified Tegillarca Granosa Linnaeus are kept under the temperature of 5 degrees.The survival rate is 100% within 12 days and the microbiological indicator still come up to the standard.Conclusion： Tegillarca granosa Linnaeus purified in seawater with 0.4 mg/L ozone concentration for 24 hours can reach the standard of purification and disinfection.