Optimization of starch hydrolysis conditions of rice wine residue based on artificial neural network
In order to solve the environmental pollution of rice wine residue treatment and improve the utilization value of rice wine residue,the starch hydrolysis conditions of rice wine residue were optimized based on artificial neural network analysis,and on this basis,the feasibility of fermentation to produce biobutanol was explored.The results showed that the optimal hydrolysis conditions were hydrolysis temperature 64 ℃,time 101 min,pH 5.4,medium temperature α-amylase addition 32 U/g,saccharifying enzyme addition 170 U/g.Under these optimal conditions,the reducing sugar con-tent of starch hydrolysate in rice wine residue was 40.49 g/L.Butanol was produced by fermentation with starch hydrolysate of rice wine residue,and the yield of butanol reached 3.07 g/L.The results provided a reference for the comprehensive utilization of rice wine residue.
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