响应面法优化三七渣固态发酵产红色素工艺

本文在单因素实验的基础上,以培养时间、培养温度和装样量为影响因子,红色素色价为响应值,采用响应面分析法优化了三七渣固态发酵产红色素的发酵工艺。结果表明,最佳发酵工艺条件为:培养时间12 d、培养温度30.6℃、装样量10.63 g,在此条件下,红色素色价的预测值和验证实验值分别为17.12、16.83 U/g,二者的相对偏差为1.69%。固态发酵三七渣生产红色素为三七渣的资源化利用提供了一条新途径,响应面分析法用于发酵工艺条件的优化准确性高、误差小。

Processing Optimization of Red Pigment Produced from Panax notoginseng residues in Solid State Fermentation by Response Surface Methodology

The technological conditions for producing red pigment from Panax Notoginseng residues in solid fermentation were studied. On the basis of single factor experiment,the fermentation process was optimized by response surface analysis with culture time,culture temperature and sample size as influencing factors and red pigment color value as response value. The results showed that the optimum fermentation process conditions were as follows:Culture time 12 d,culture temperature 30.6℃,sample loading amount 10.63 g.Under these conditions,the predicted value and the verified experimental value of the red pigment value were 17.12,16.83 U/g,respectively,and the relative deviation was 1.69%.The production of red pigment from Panax notoginseng residues by solid state fermentation provides a new way for the resource utilization of Panax notoginseng residues. The response surface analysis method has high accuracy and small error in the optimization of fermentation process conditions.