超声波辅助酶法提取玉米秸秆低聚木糖的工艺研究OA
Study on the process of ultrasonic-assisted enzymatic extraction of xylooligosaccharides from corn stover
为挖掘玉米秸秆的潜在价值,以其为原料,运用单因素试验分析超声处理温度、超声处理时间、液料比、NaOH质量分数对木糖提取率的影响,考察添加酶质量分数、酶解温度及酶解时间对低聚木糖浓度的作用效果,借助响应面法优化超声预处理与酶解工艺参数.结果表明,超声预处理最优参数为65℃,30 min,液料比25∶1(mL/g),NaOH质量分数8%,此条件下木糖提取率达40.51%;酶解环节中,在添加酶质量分数1.5%,50℃处理5 h,低聚木糖浓度可提升至8.58 g/L.研究为农业废弃物资源化利用,提供数据支撑与方法参考.
To explore the potential value of corn stover,it was used as a raw material to investigate the effects of ultrasonic treatment temperature,ultrasonic treatment time,liquid-to-solid ratio,and NaOH mass fraction on xylose extraction yield through single-factor experiments.The effects of enzyme dosage,enzymolysis temperature,and enzymolysis time on xylooligosaccharide concentration were also examined.Response surface methodology(RSM)was employed to optimize the parameters for ultrasonic pretreatment and enzymatic hydrolysis.The results showed that the optimal ultrasonic pretreatment parameters were:temperature of 65℃,time of 30 min,liquid-to-solid ratio of 25∶1(mL/g),and NaOH mass fraction of 8%.Under these conditions,the xylose extraction yield reached 40.51%.For the enzymatic hydrolysis step,with an enzyme dosage of 1.5%and treatment at 50℃ for 5 h,the xylooligosaccharide concentration was increased to 8.58 g/L.This research provides data support and methodological reference for the resource utilization of agricultural waste.
张晟;张雅娜;王鹏
绥化学院,黑龙江 绥化 152000绥化学院,黑龙江 绥化 152000绥化学院,黑龙江 绥化 152000
轻工纺织
玉米秸秆超声处理酶法水解低聚木糖响应面优化
corn stoverultrasonic treatmentenzymatic hydrolysisxylooligosaccharideresponse surface optimization
《包装与食品机械》 2026 (2)
50-57,8
黑龙江省省属本科高校基本科研业务费项目(YWK10236210239)绥化学院科研创新团队项目(SIT05003)
评论