高压蒸煮法提取玉米秸秆纤维素的工艺研究  

Study on Extraction of Cellulose in Corn Straw with High Pressure Steaming Method

作　　者：毛微曦 赵晓胜[1] 王立华[1] 宋瑞杰[1] 王永利[1] 

机构地区：[1]河北北方学院应用化学研究所,河北张家口075000

出　　处：《安徽农业科学》2013年第34期13387-13389,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省高等学校科学研究计划项目(QN20131157);张家口市科学技术研究与发展计划项目(12110040C-3);河北北方学院自然科学面上项目(2013001)

摘　　要：[目的]探究高压蒸煮法提取玉米秸秆纤维素的最佳工艺条件。[方法]以玉米秸秆为原料,采用高压蒸煮法提取玉米秸秆纤维素,通过单因素试验,分别考察了NaOH质量分数、压力、恒温时间和料液比对纤维素含量的影响,并应用L9(34)正交试验对上述4个因素进行优化,确定了该方法提取纤维素的最佳工艺条件。[结果]最佳提取工艺:NaOH溶液的质量分数为12%,压力为0.7 MPa,恒温时间为60 min,料液比为1∶12,在此工艺条件下,提取的玉米秸秆纤维素含量可达84.94%。[结论]该研究为提高秸秆纤维素的利用率提供了试验基础,为后期研究玉米秸秆纤维复合材料提供了参考依据。[ Objective ] To find out the best technological conditions of extracting corn straw cellulose by using high pressure cooking method. [ Method] With corn stalk as the raw material, the corn straw cellulose was extracted by using high pressure cooking method. Though the sin- gle factor experiment, respectively analyze NaOH concentration, pressure, time and the ratio of material to liquid on the content of cellulose, apply L9 （34 ） orthogonal test to optimize the prescription in four factors, and confirm the best technological conditions finally. [ Result] It was found that from the single factor experiment and orthogonal test, the optimized process parameters is the mass fraction of NaOH 12% , the pres- sure 0.7 MPa, the constant temperature time 60 min, ratio of material to liquid 1 ： 12, under this condition, the cellulose content of corn straw can be as high as 84.94%. [ Conclusion] The research provides the experimental basis for improving the utilization rate of straw cellulose and provides the reference for the later research of corn straw fiber composites.

关 键 词：玉米秸秆 纤维素 高压蒸煮 单因素 正交试验 

分 类 号：TS213.4[轻工技术与工程—粮食、油脂及植物蛋白工程]