摘要
以玉米芯为原料,利用瞬间气流膨化作用破坏玉米芯中的木质素结构,结合木聚糖酶酶切制备低聚木糖,并研究了不同气流膨化条件对可溶性总糖、木聚糖溶出率以及低聚木糖组分的影响。比较了不同玉米芯粉碎程度、气流膨化机压力、添加水量以及维压时间对制备低聚木糖的影响。结果表明:以尺寸为1mm玉米芯粉为原料,添加玉米芯粉质量10%的蒸馏水,通过加热使气流膨化机压力达到1.4MPa,并且维压180s,处理后的原料木聚糖溶出率为34.87%。经木聚糖酶酶解后,所得低聚木糖含量为85.64%,木二糖+木三糖+木四糖含量为65.78%。
Used corncob as material, using instantaneous explosion-puffing to destroy lignin and then adding xylanase to prepare xylooligosaccharides was studied.The effects of explosion-puffing conditions on soluble total sugar, xylan dissolution rate, and xylooligosaccharide components, such as degrees of corncob crushing, air puffer pressure, added water amount, and pressure maintaining time was studied.The results showed that using 1mm size corncob powder as material, adding 10% distilled water, and heating to achieve a pressure of 1.4MPa in the air puffer, and maintaining the pressure for 180 seconds, the xylan dissolution rate of the treated raw material reached 34.87%.After enzymatic hydrolysis with xylanase, the content of oligosaccharides reached 85.64%,and the content of xylobiose, xylotriose, and xylotetraose reached 65.78%.
作者
杜倩
刘月
刘茜琼
王彬彬
徐同成
DU Qian;LIU Yue;LIU Xi-qiong;WANG Bin-bin;XU Tong-cheng(Shandong Bailong Chuangyuan Bio-tech Co.,Ltd.,Dezhou 251200,China)
出处
《精细与专用化学品》
CAS
2023年第11期51-55,共5页
Fine and Specialty Chemicals
基金
泰山产业领军人才工程战略性新兴产业创新类项目(2019TSCYCX-35)。
关键词
玉米芯
气流膨化
低聚木糖
corncob
explosion-puffing
xylooligosaccharides
