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Volume 8 Issue 4
Dec.  2017
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Article Navigation >  Journal of Tropical Biology  > 2017  >  8(4): 404-408,423

LIN Qing, MA Qingtao, LI Chunxiao, CHEN Kailiang, XU Xiaoneng. Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis[J]. Journal of Tropical Biology, 2017, 8(4): 404-408,423. doi: 10.15886/j.cnki.rdswxb.2017.04.005
Citation: LIN Qing, MA Qingtao, LI Chunxiao, CHEN Kailiang, XU Xiaoneng. Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis[J]. Journal of Tropical Biology, 2017, 8(4): 404-408,423. doi: 10.15886/j.cnki.rdswxb.2017.04.005
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Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis

doi: 10.15886/j.cnki.rdswxb.2017.04.005

  • Shantou Ocean and Fisheries Research Institute, Shantou 515041, China

  • Received Date: 2017-06-27
  • Rev Recd Date: 2017-08-01
  • An experiment was carried out to reduce the number of the coliform group and the total colony count in Crassostrea rivularis cultured in sea water to ensure food safety. Sea water used for culture of C. rivularis was disinfected with ozone at concentrations of 0. 4,0. 8 and 1. 2 mg·L-1 to select an appropriate ozone concentration for a combinedozone-ultraviolet system used for depuration of the seawater. The seawater was disinfected under the combined ozone-ultraviolet system for 24 hrs at different temperatures,seawater exchange rate,and ratio of shellfish to water,and used to rear C. rivularis to find out a seawater depuration method for C. rivularis. The results indicated that the sea water when depurated for 24 hrs with ozone at a concentration of 0. 8 mg·L-1,a temperature at 25 ℃,a ratio of shellfish to water at 1∶ 15,salinity at 8 and an water exchange rate at 4 times/h,had a better depuration rate against the coliform group of bacteria in Crassostrea rivularis. This indicates that the combined ozone-ultraviolet system is effective to disinfect the coliform group in Crassostrea rivularis.
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Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis

doi: 10.15886/j.cnki.rdswxb.2017.04.005
  • Shantou Ocean and Fisheries Research Institute, Shantou 515041, China
  • Received Date: 2017-06-27
  • Rev Recd Date: 2017-08-01

Abstract: An experiment was carried out to reduce the number of the coliform group and the total colony count in Crassostrea rivularis cultured in sea water to ensure food safety. Sea water used for culture of C. rivularis was disinfected with ozone at concentrations of 0. 4,0. 8 and 1. 2 mg·L-1 to select an appropriate ozone concentration for a combinedozone-ultraviolet system used for depuration of the seawater. The seawater was disinfected under the combined ozone-ultraviolet system for 24 hrs at different temperatures,seawater exchange rate,and ratio of shellfish to water,and used to rear C. rivularis to find out a seawater depuration method for C. rivularis. The results indicated that the sea water when depurated for 24 hrs with ozone at a concentration of 0. 8 mg·L-1,a temperature at 25 ℃,a ratio of shellfish to water at 1∶ 15,salinity at 8 and an water exchange rate at 4 times/h,had a better depuration rate against the coliform group of bacteria in Crassostrea rivularis. This indicates that the combined ozone-ultraviolet system is effective to disinfect the coliform group in Crassostrea rivularis.

LIN Qing, MA Qingtao, LI Chunxiao, CHEN Kailiang, XU Xiaoneng. Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis[J]. Journal of Tropical Biology, 2017, 8(4): 404-408,423. doi: 10.15886/j.cnki.rdswxb.2017.04.005
Citation: LIN Qing, MA Qingtao, LI Chunxiao, CHEN Kailiang, XU Xiaoneng. Effect of Combined Ozone-Ultraviolet on the Total Colony Count and the Coliform Group in Crassostrea rivularis[J]. Journal of Tropical Biology, 2017, 8(4): 404-408,423. doi: 10.15886/j.cnki.rdswxb.2017.04.005
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