| 冷冻时间对贝类大肠杆菌、细菌总数结果的影响 |
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| 引用本文： | 鲍静姣,尤炬炬,孙秀梅.冷冻时间对贝类大肠杆菌、细菌总数结果的影响[J].河北渔业,2012(7):8-9,46. |
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| 作者姓名： | 鲍静姣 尤炬炬 孙秀梅 |
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| 作者单位： | 浙江省海洋水产研究所,浙江舟山,316100 |
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| 摘 要： | 研究探讨了贝类以缢蛏为代表在室温16℃、湿度50%～70%条件下,不同冷冻时间对贝类大肠杆菌、细菌总数的影响。结果表明,随着存放时间延长,贝类菌落总数呈下降趋势,变化范围分别在1.0×102～1.0×103 CFU/g之间。而大肠杆菌数基本小于30MPN/100g,低于农业部无公害贝类标准。存储8d以后,大肠杆菌数量无明显变化,而细菌总数在6d以后呈下降趋势。可见贝类在-11～-18℃的温度下,大肠杆菌数存储8d无明显变化,细菌总数存储6d无明显变化。
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| 关 键 词： | 贝类 菌落总数 大肠杆菌 |
Effects of different freezing time on the Escherichia coli and total bacteria count in shellfish |
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| BAO Jing-jiao
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YOU Ju-ju
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SUN Xiu-mei.Effects of different freezing time on the Escherichia coli and total bacteria count in shellfish[J].Hebei Fisheries,2012(7):8-9,46. |
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| Authors: | BAO Jing-jiao YOU Ju-ju SUN Xiu-mei |
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| Institution: | (Mrine Fishery Research Institute of Zhejiang Province,Zhoushan 316100,China) |
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| Abstract: | The paper studied effects of different freezing time on the Escherichia coli and total bacteria count in shellfish（Sinonovacula constricat canarck） stored in the condition of 16oC,50%～60% RH.The research results showed that the total bateria count decreased according to the increase of freezing time,the range of variation is 1.0×10^2～1.0×10^3 CFU/g.The amount of Escherichia coli is less than 30 CFU/100 g.The results meet the ministry of agriculture standard of free-pollution shellfish.The amount of Escherichia coli showed no significant variation after storing 8 d,while total bacteria count decreased significantly after 6 d.These results indicated,under freezing condition（-11～-18 ℃）,The amount of Escherichia coli in shellfish showed no significant change for storing 8 d,and total bacteria count in shellfish showed no significant change for storing 6 d. |
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| Keywords: | shellfish total bacteria count Escherichia coli |
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