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响应面法优化米曲霉产孢工艺条件
引用本文:张义伟,刘瑞勇,李新锐,刘旭博,张良. 响应面法优化米曲霉产孢工艺条件[J]. 中国酿造, 2014, 0(7): 34-38
作者姓名:张义伟  刘瑞勇  李新锐  刘旭博  张良
作者单位:沈阳农业大学生物科学技术学院,辽宁沈阳110866
基金项目:国家科技部"十二五"科技支撑计划项目(2012BAD31B05-3);沈阳农业大学大学生科技创新项目(201310157539)
摘    要:
米曲霉(Aspergillusoryzae)是一种在食品中应用广泛的真菌。为了得到较多的米曲霉孢子,基于单因素试验选取了培养温度、培养基含水量和接种量3个因素,利用Design-Expert响应面分析法对产孢进行了优化。结果表明,在培养温度为22.66℃,培养基含水量为48.79%,接种量为3.44‰时,产孢子数预测可达到12.7437×109CFU/g,实际测得为12.1×109CFU/g,达到预测值的94.95%。

关 键 词:米曲霉  孢子粉  响应面优化

Optimization of Aspergillus oryzae Spores-producing process condition by response surface analysis
ZHANG Yiwei,LIU Ruiyong,LI Xinrui,LIU Xubo,ZHANG Liang. Optimization of Aspergillus oryzae Spores-producing process condition by response surface analysis[J]. China Brewing, 2014, 0(7): 34-38
Authors:ZHANG Yiwei  LIU Ruiyong  LI Xinrui  LIU Xubo  ZHANG Liang
Affiliation:(College of Biological Science & Technology, Shenyang Agricultural University, Shenyang 110866, China)
Abstract:
A spergilllus oryzae isw idely used in food.In order to getm orc spores of A.oryzae,based on single factor test,three factors of culture temperature,m edium water contentand inoculum s were selected to conductresponse surface analysis to optim ize spores production from A.oryzae.The results show ed thatunder the condition of tem perature 22.66 ℃,m edium w ater content48.79%,inoculum 3.44‰,the predicted spores were up to 12.743 7×109 C FU/g,and the actualdetected num berw as 12.1× 109 C FU/g,maching 94.95% of the predicted value.
Keywords:Aspergillus oryzae  spores  response surface optimization
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