摘要
对米曲霉UC6-90产曲酸的培养基进行优化,分别研究碳源、氮源、无机盐对曲酸产量的影响。通过响应面方法确定曲酸发酵最佳发酵培养基为:玉米淀粉14.44%,豆饼粉0.50%,KH2PO40.40%,MgSO40.10%,pH6.0。经7d发酵曲酸产量达到45.2g/L,比原来产量提高13%。
To optimize culture medium for kojic acid produced by Aspergillus oryzae UC6-90 researching was done on the respect of C-source, N-source and Mineral salt. Through Response Surface Method, the optimum medium was identified as follows: maize starch 14.44 %, bean cake powder 0.50 %, KHEPO4 0.4 %,MgSO4 0.10 %, pH6.0.Yield of kojic acid was 45.2 g/L after seven days fermentation, which was improved by 13 % than before.
出处
《食品研究与开发》
CAS
北大核心
2007年第6期52-56,共5页
Food Research and Development
关键词
曲酸
培养基优化
响应面
Kojic acid
optimization of culture medium
RSM