食品科学 ›› 2017, Vol. 38 ›› Issue (12): 171-176.doi: 10.7506/spkx1002-6630-201712026

• 工艺技术 • 上一篇    下一篇

炭基固体酸催化水解木聚糖制备低聚木糖的工艺优化

韩鹏飞,虞佐嗣,郭建忠,李兵, 刘力   

  1. 1.浙江农林大学理学院,浙江省林业生物质化学利用重点实验室,浙江?临安 311300;2.浙江农林大学工程学院,浙江?临安 311300
  • 出版日期:2017-06-25 发布日期:2017-06-26
  • 基金资助:
    国家自然科学基金面上项目(21677132);浙江省科技厅公益技术研究农业项目(2014C32040;2016C32014);浙江农林大学林业工程学科创新团队基金项目(101/206001000710);浙江农林大学学生科研训练项目(110-2013200025)

Opimization of Xylan Hydrolysis Catalyzed by Carbon-Based Solid Acid Catalyst for Preparing Xylooligosaccharides

HAN Pengfei, YU Zuosi, GUO Jianzhong, LI Bing, LIU Li   

  1. 1. Key Laboratory of Chemical Utilization of Forestry Biomass of Zhejiang Province, School of Sciences, Zhejiang A&F University, Lin’an 311300, China; 2. School of Engineering, Zhejiang A&F University, Lin’an 311300, China
  • Online:2017-06-25 Published:2017-06-26

摘要: 以榉木木聚糖为原料,采用炭基固体酸催化剂(AC-SO3H)催化水解制备得到低聚木糖。分别考察反应时间、反应温度、催化剂用量对低聚木糖收率及各组分收率的影响,并通过正交试验设计确定最佳工艺条件为20?mL蒸馏水,0.5?g木聚糖、0.2?g?AC-SO3H、反应时间3?h、反应温度140?℃。并在此条件下,分别以AC-SO3H、M-AC-SO3H、S-AC-SO3H为催化剂,考察不同催化剂对低聚木糖收率的影响,结果表明以AC-SO3H为催化剂时低聚木糖收率最大为66.60%。

关键词: 木聚糖, 低聚木糖, 炭基固体酸催化剂

Abstract: In the current study, xylooligosaccharides (XOS) were prepared by catalytic hydrolysis of beech wood xylan using carbon-based solid acid catalyst (AC-SO3H). The effects of reaction time, temperature and catalyst dosage on the yield of XOS were investigated. Using orthogonal array design, the optimal hydrolysis conditions were determined as 0.5 g of xylan, 0.2 g of AC-SO3H, and reaction time 3 h at 140 ℃. Under these conditions, the effect of different catalysts, namely, AC-SO3H, M-AC-SO3H and S-AC-SO3H, on XOS yield was investigated. The results showed that the highest yield of XOS of 66.60% was obtained by using AC-SO3H.

Key words: xylan, xylooligosaccharides, carbon-based solid acid catalyst

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