CAJ | 학술논문

采用响应面法回归分析优化瞬间蒸汽爆破预处理玉米秸秆过程，研究了汽爆压强、维压时间以及填料量三因素对酶解糖产率的影响，基于 Box-Behnken 设计，分析并获得了一个二阶线性方程模型，能够较好地拟合实验值。获取的最优条件为汽爆压强3．5 MPa，维压时间50 s，填料量60 g，此时糖产率达到54．37％，相比于未处理物料，其糖化率提高了1．88倍。采用扫描电镜、X 射线衍射分析以及傅里叶红外光谱对处理前后的物料进行结构和组分分析，与未处理的物料相比，处理后的物料结晶度明显降低，颗粒度减小，可及度显著提高。
채용향응면법회귀분석우화순간증기폭파예처리옥미갈간과정，연구료기폭압강、유압시간이급전료량삼인소대매해당산솔적영향，기우 Box-Behnken 설계，분석병획득료일개이계선성방정모형，능구교호지의합실험치。획취적최우조건위기폭압강3．5 MPa，유압시간50 s，전료량60 g，차시당산솔체도54．37％，상비우미처리물료，기당화솔제고료1．88배。채용소묘전경、X 사선연사분석이급부리협홍외광보대처리전후적물료진행결구화조분분석，여미처리적물료상비，처리후적물료결정도명현강저，과립도감소，가급도현저제고。
This study aimed to perform a response surface methodology (RSM)regression analysis which led to the optimization on the operation condition of instaneous steam explosion pretreatment on corn stalk.The effects of pressure,time and filling quantity on total sugar yield obtained from enzymatic hydrolysis of pretreated corn stalk were investigated.Based on Box-Behnken design,a second order polynomial equation mode was obtained which can fit well the experment values.The optimized conditions for instaneous steam explosion pretreatment were 3.5 MPa for pressure,50 s for time and 60 g for filling quantity with a sugar yield of 54.37%.Compared with the untreated materials,the saccharification rate increased 1.88 times.Compared with the un-treated corn stalk,the pretreated corn stalk was found to be porous,less crystalline and favorable to enzymatic hydrolysis based on the structural and component analyses on the treated and untreated materials by scanning electron microscopy (SEM),X-ray diffraction (XRD)and Fourier transform infrared spectroscopy (FTIR).