Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating

doi:10.7506/spkx1002-6630-200909027

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (9): 116-119.doi: 10.7506/spkx1002-6630-200909027

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Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating

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

Received:2008-08-25 Revised:2008-12-13 Online:2009-05-01 Published:2010-12-29
Contact: WANG Biao-shi E-mail:hang_kong2002@163.com

Abstract

Abstract:

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.

Key words: BP network, ultra-high pressure, Bacillus coagulans spore

CLC Number:

TS201.6

WANG Biao-shi1 LI Bian-sheng2 ZENG Qing-xiao2 HUANG Juan3 RUAN Zheng2 LI Lin2. Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating[J]. FOOD SCIENCE, 2009, 30(9): 116-119.

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Application of BP Network to Optimization of Inactivation Conditions of Bacillus coagulans Spore by Ultra-high Pressure Combined with Heating

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