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当前位置: 首页 > 文章 > BP网络对凝结芽孢杆菌芽孢热压协同灭活条件的优化 食品科学 2009,30 (9) 116-119
Position: Home > Articles > Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating FOOD SCIENCE 2009,30 (9) 116-119

BP网络对凝结芽孢杆菌芽孢热压协同灭活条件的优化

作  者：
王标诗;李汴生;曾庆孝;黄娟;阮征;李琳
单  位：
湛江师范学院化学科学与技术学院;广州市产品质量监督检验所;华南理工大学轻工与食品学院
关键词：
BP网络;超高静压;凝结芽孢杆菌芽孢
摘  要：
通过BP网络对超高静压协同热处理灭活凝结芽孢杆菌芽孢的条件(压力、温度和保压时间)进行优化,结果表明,经过训练的BP网络具有良好的预测能力;经训练的BP网络能够对超高静压协同热处理灭活凝结芽孢杆菌芽孢的条件进行优化,得到的最优组合为:压力550MPa,温度80℃、时间20min,此组合可达到的灭活效果为芽孢数下降了4.97个数量级,此结果比正交试验结果提高了0.16个数量级。
译  名：
Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating
作  者：
WANG Biao-shi1,LI Bian-sheng2,ZENG Qing-xiao2,HUANG Juan3,RUAN Zheng2,LI Lin2 (1.School of Chemistry Science and Technology,Zhanjiang Normal College,Zhanjiang 524048, China; 2.College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China ; 3. Guangzhou Supervision and Inspection Institute of Product Quality,Guangzhou 510110, China)
关键词：
BP network;ultra-high pressure;Bacillus coagulans spore
摘  要：
Three key conditions for inactivating Bacillus coagulans spore by ultra-high pressure combined with heating, such as pressure, preheating temperature and pressure-holding time were optimized using BP network in this study. Results indicated that BP network was capable of accurate prediction and the trained BP neural network was able to optimize and simulate the inactivation process of Bacillus coagulans spore by ultra-high pressure combined with heating. The best inactivation effect was obtained by preheating Bacillus coagulans suspension at 80 ℃ and then pressurizing it at 550 MPa for 20 min, and the number of Bacillus coagulans spore was decreased by 4.97 log unit, which was 0.16 log unit higher than the result from orthogonal test.

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