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基于神经网络与遗传算法优化γ-氨基丁酸的发酵条件

吕闻闻 张庆庆 汤文晶 许鹏

安徽工程大学学报2012,Vol.27Issue(1):5-8,4.
安徽工程大学学报2012,Vol.27Issue(1):5-8,4.

基于神经网络与遗传算法优化γ-氨基丁酸的发酵条件

Fermentation conditions optimization for γ-aminobutyric acid production based on neural network and genetic algorithms

吕闻闻 1张庆庆 1汤文晶 1许鹏1

作者信息

  • 1. 安徽工程大学微生物发酵安徽省工程技术研究中心,安徽芜湖241000
  • 折叠

摘要

Abstract

The solid fermentation conditions tor γ-ammobutyrm acla prouuction by ,wu optimized. Back-propagation neural network was established to model the relationships between the 7- aminobutyric acid yield and fermentation conditions. Genetic algorithm(GA)was applied for integrated optimization of the model. The trained network with the structure of 4-11-1 had a high generalization, the correlation coefficient between simulating outputs and the test data was 0. 989. The obtained optimal conditions were:temperature 31.7 ~C ,initial p H 4.6, initial water content 69.8 %, and inoculum volume 13.2%. Under above conditions, the yield of γ-aminobutyric acid reached 0. 518 mg/g, 19.6% higher than before.

关键词

γ-氨基丁酸/神经网络/遗传算法/优化

Key words

γ-aminobutyric acid/BP neural network/genetic algorithms/optimization

分类

生物科学

引用本文复制引用

吕闻闻,张庆庆,汤文晶,许鹏..基于神经网络与遗传算法优化γ-氨基丁酸的发酵条件[J].安徽工程大学学报,2012,27(1):5-8,4.

基金项目

芜湖市重点科技基金资助项目(芜科计字[2009]190号文 ()

安徽工程大学学报

2095-0977

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