SCI和EI收录∣中国化工学会会刊

›› 2016, Vol. 24 ›› Issue (12): 1786-1792.DOI: 10.1016/j.cjche.2016.05.016

• Biotechnology and Bioengineering • 上一篇    

Hemicellulose in corn straw: Extracted from alkali solution and produced 5-hydroxymethyl furfural in HCOOH/HCOONa buffer solution

Yan Li, Hongxian Fan, Xueqing Yu, Songmei Zhang, Gang Li   

  1. Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
  • 收稿日期:2016-03-31 修回日期:2016-05-20 出版日期:2016-12-28 发布日期:2017-01-04
  • 通讯作者: Gang Li,Tel.:+862260202443. E-mail address:ligang@hebut.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China (No. 21576067).

Hemicellulose in corn straw: Extracted from alkali solution and produced 5-hydroxymethyl furfural in HCOOH/HCOONa buffer solution

Yan Li, Hongxian Fan, Xueqing Yu, Songmei Zhang, Gang Li   

  1. Hebei Provincial Key Lab of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
  • Received:2016-03-31 Revised:2016-05-20 Online:2016-12-28 Published:2017-01-04
  • Supported by:
    Supported by the National Natural Science Foundation of China (No. 21576067).

摘要: Hemicellulose in corn straw is a group of complex heteropolysaccharides which are composed of different sugar units, including mannans, xylans, arabinans and galactans. This study developed a simple and practical process for production of 5-hydroxymethyl furfural (HMF) using hemicellulose that was extracted from corn straw. In the hemicellulose degradation process HCOOH/HCOONa was used as buffer solution, and the optimum conditions for maximum HMF yield were explored. Various extraction conditions including NaOH concentration, reaction time, temperature, solid-to-liquid ratio and precipitant were tested for hemicellulose obtaining, giving the optimum condition of 55℃, 4 h, solid-to-liquid ratio of 1:10, 1.5 mol·L-1 NaOH solution and ethanol as precipitant with the yield of 34.16%. Dehydration of hemicellulose under HCOOH/HCOONa buffer solution process, using solution medium of pH=0.8 hydrolyzed hemicellulose in corn straw at 190℃ after 190 min and 82% of HMF yield was achieved.

关键词: Hemicellulose, HMF, Degradation, Buffer solution, ELSD

Abstract: Hemicellulose in corn straw is a group of complex heteropolysaccharides which are composed of different sugar units, including mannans, xylans, arabinans and galactans. This study developed a simple and practical process for production of 5-hydroxymethyl furfural (HMF) using hemicellulose that was extracted from corn straw. In the hemicellulose degradation process HCOOH/HCOONa was used as buffer solution, and the optimum conditions for maximum HMF yield were explored. Various extraction conditions including NaOH concentration, reaction time, temperature, solid-to-liquid ratio and precipitant were tested for hemicellulose obtaining, giving the optimum condition of 55℃, 4 h, solid-to-liquid ratio of 1:10, 1.5 mol·L-1 NaOH solution and ethanol as precipitant with the yield of 34.16%. Dehydration of hemicellulose under HCOOH/HCOONa buffer solution process, using solution medium of pH=0.8 hydrolyzed hemicellulose in corn straw at 190℃ after 190 min and 82% of HMF yield was achieved.

Key words: Hemicellulose, HMF, Degradation, Buffer solution, ELSD