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林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (2): 119-122.doi: 10.3969/j.issn.0253-2417.2013.02.021

• 研究报告 • 上一篇    下一篇

造纸蒸煮废液水解制糖的研究

杨静, 蒋剑春, 张宁, 卫民, 赵剑   

  1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室; 国家林业局 林产 化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室; 江苏 南京 210042
  • 收稿日期:2012-02-22 修回日期:1900-01-01 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 蒋剑春(1955-),男,江苏溧阳人,研究员,博士,博士生导师,从事林产化学加工和生物质能源开发技术研究;E-mail:bio-energy@163.com。

Sugar Preparation from Pulping Black Liquor by Hydrolysis

YANG Jing, JIANG Jian-chun, ZHANG Ning, WEI Min, ZHAO Jian   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2012-02-22 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

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摘要： 考察了马尾松硫酸盐法制浆蒸煮废液水解制糖,结果显示同酸水解相比,酶水解效率较高。脱木质素后再进行酶水解,水解液中还原糖可达到9.18 g/L。脱木质素的最佳条件为pH值3.0,温度75 ℃,硫酸质量分数6 %,此时上清液中的半纤维素质量浓度最高,达到47.61 g/L。对脱木质素后酶水解液做液相色谱分析,发现水解液中主要为葡萄糖3.63 g/L,其次为木糖醇2.94 g/L 和纤维二糖1.81 g/L,并有少量木糖和阿拉伯糖,质量浓度分别为0.80和0.02 g/L。

关键词: 黑液, 半纤维素, 水解, 还原糖

Abstract: The reducing sugar preparation by various hydrolysis methods from sulfate pulping black liquor of Pinus massoniana was investigated in present study. The results indicated enzymatic hydrolysis had high efficiency on sugar reducing in contrast to acid hydrolysis. A reducing sugar content of 9.18 g/L was obtained by enzymatic hydrolysis after delignification. And the optimum conditions for delignification was conducted as black liquore was hydrolyzed by 6%, sulfuric acid solution at 75℃ under pH 3.0 environment. The highest hemicellulose content of 47.61 g/L was obtained in the supernatant residual.The dominant products in hydrolysate were 3.63 g/L glucose, followed by 2.94 g/L xylitol and 1.81 g/L cellobiose. But small amounts of xylose and arabinose were obtained, and their contents, represented 0.80 and 0.02 g/L respectively.

Key words: black liquor, hemicellulose, hydrolysis, reducing sugar

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