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《Journal of Ningbo University(Natural Science & Engineering Edition)》 2006-02
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Purification Technique of Fresh Ostrea plicatula

ZHUANG Rong-yu,LOU Yong-jiang,YANG Wen-ge,SUN Ai-fei(Faculty of Life Science and Biotechnology,Ningbo University,Ningbo 315211,China)  
The fresh Ostrea plicatula is dipped in 1 mg/L,2 mg/L or 3 mg/L ozone solution for 3 to 9 min,then packed in individual sterile bags and stored in refrigerator(0~4oC) for 8 days.The fresh keeping effectiveness of ozone on the Ostrea plicatula is investigated.The results show that ozone could inactivate the bacteria in Ostrea plicatula.The higher concentration of ozone and longer treatment time,the more improved effectiveness.Through overall comparing the value of the T-VBN,the total amount of the aerobic colony,and the coliform value of the Ostrea plicatula at each observation day,it is found out that 3 mg/L ozone solution and 9 min dipping treatment had the best fresh keeping result.The amount of the inactivation aerobic bacteria in the Ostrea plicatula is 95.9%.And the shelf life of the Ostrea plicatula is found to be 6 days,which is 4 day longer than the control.Also,the ozone treatment had no impact on the sensory quality of the Ostrea plicatula.The ozone could be effectively applied to the fresh keeping for the Ostrea plicatula.
【Fund】: 宁波市重大科技攻关项目(2003C10020);; 宁波大学科研基金(0113050)
【CateGory Index】: TS254.1
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