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| 高密度二氧化碳对蛋清液中沙门氏菌和大肠杆菌杀菌效果和杀菌动力学的研究 | |
| 引用本文： | 王洪芳,刘毅,姚中峰,戴瑞彤,李兴民,阎文杰.高密度二氧化碳对蛋清液中沙门氏菌和大肠杆菌杀菌效果和杀菌动力学的研究[J].农产品加工．学刊,2011(7):36-40,53. |
| 作者姓名： | 王洪芳 刘毅 姚中峰 戴瑞彤 李兴民 阎文杰 |
| 作者单位： | 1. 中国农业大学食品科学与营养工程学院,畜产品北京市高等学校工程研究中心,北京100083; 2. 石河子大学食品学院,新疆石河子,832003 3. 中国农业大学食品科学与营养工程学院,畜产品北京市高等学校工程研究中心,北京100083;北京联合大学应用文理学院,北京100083 |
| 基金项目： | 农业部公益性行业(农业)科研专项(200903012) |
| 摘 要： | 研究了不同温度、压力和时间条件下,高密度二氧化碳(DPCD)处理对蛋清液中沙门氏菌和大肠杆菌的杀菌效果,并对DPCD处理蛋清液中大肠杆菌的杀菌动力学进行了分析。结果表明,在15 MPa,45℃下DPCD处理60 min,沙门氏菌和大肠杆菌分别降低了4.46和5.57个对数值,其中大肠杆菌对DPCD处理较沙门氏菌敏感。30 MPa,45℃,DPCD处理30 min,可以完全杀灭蛋清液中的大肠杆菌。线性模型能较好地拟合DPCD对大肠杆菌的杀菌效果,其中30 MPa,45℃下D值最小为5.830。 |
| 关 键 词： | 高密度二氧化碳 蛋清液 杀菌效果 杀菌动力学 |
Inactivation and Disinfection Kinetics of Salmonella sp.and E.coli in Egg White Exposed to Dense Phase Carbon Dioxide |
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| Wang Hongang,Liu Yi,Yao Zhongfeng,Dai Ruitong,Li xingmin,Yan Wenjie.Inactivation and Disinfection Kinetics of Salmonella sp.and E.coli in Egg White Exposed to Dense Phase Carbon Dioxide[J].Nongchanpin Jlagong.Xuekan,2011(7):36-40,53. | |
| Authors: | Wang Hongang Liu Yi Yao Zhongfeng Dai Ruitong Li xingmin Yan Wenjie |
| Institution: | Wang Hongfang1,Liu Yi1,Yao Zhongfeng2,Dai Ruitong1,Li Xingmin1,Yan Wenjie1,3(1.College of Food Science and Nutritional Engineering,China Agricultural University,Beijing Higher Institution Engineering Research Center of Animal Product,Beijing 100083,China,2.College of Food Science & Technology,Shihezi University,Shihezi,Xinjiang 832003,3.College of Applied Arts and Sciences,Beijing Union University,China) |
| Abstract: | The effects of temperature,pressure and time on the inactivation of Salmonella sp.and E.coli in egg white exposed to dense phase carbon dioxide(DPCD)are investigated.Inactivation and disinfection kinetics of E.coli.in egg white by DPCD are also investigated.The log reduction of the numbers of Salmonella sp.and E.coli by DPCD treatments(15 MPa, 45 ℃,60 min)are 4.46 and 5.57.And Salmonella sp.is more resistant than E.coli exposed to DPCD treatments.Meanwhile,complete inactivation of E.coli in egg white by DPCD is achieved at 30 MPa and 45 ℃ for 30 min.Linear model provided better fitness for the inactivation of E.coli by DPCD,and the minimum D value is 5.830 min at 30 MPa and 45 ℃. |
| Keywords: | dense phase carbon dioxide egg white inactivation disinfection kinetics |
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