华南理工大学学报(自然科学版) ›› 2008, Vol. 36 ›› Issue (7): 42-46.

• 化学化工 • 上一篇    下一篇

木聚糖酶处理对纸浆中己烯糖醛酸含量的影响

李海龙1  陈嘉川2 詹怀宇1 付时雨1 杨桂花1   

  1. 1. 华南理工大学 制浆造纸工程国家重点实验室, 广东 广州 510640; 2. 山东轻工业学院 山东省制浆造纸重点实验室, 山东 济南 250100
  • 收稿日期:2007-03-20 出版日期:2008-07-25 发布日期:2008-07-25
  • 通信作者: 李海龙(1979-),男,博士生,主要从事制浆化学与生物化学的研究. E-mail:1ihailong1979@163.com
  • 作者简介:李海龙(1979-),男,博士生,主要从事制浆化学与生物化学的研究.
  • 基金资助:

    国家973计划资助项目(2007CB210201)

Effect of Xylanase Treatment on Content of Hexenuronic Acid in Pulp

Li Hai-long1  Chen Jia-chuan2  Zhan Huai-yu1  Fu Shi-yu1  Yang Gui-hua1   

  1. 1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Shandong Key Laboratory of Pulp and Paper Engineering, Shandong Institute od Light Industry, Jinan 250353, Shandong, China
  • Received:2007-03-20 Online:2008-07-25 Published:2008-07-25
  • Contact: 李海龙(1979-),男,博士生,主要从事制浆化学与生物化学的研究. E-mail:1ihailong1979@163.com
  • About author:李海龙(1979-),男,博士生,主要从事制浆化学与生物化学的研究.
  • Supported by:

    国家973计划资助项目(2007CB210201)

摘要: 采用木聚糖酶处理纸浆,以降低纸浆中的己烯糖醛酸含量.结果表明,木聚糖酶处理可以降低纸浆中己烯糖醛酸的含量.在木聚糖酶用量为10U/g时,处理的麦草浆和三倍体毛白杨浆中己烯糖醛酸的含量分别降低了3.46μmol/g和7.83μmol/g,桉木浆中己烯糖醛酸含量最大降低量为7.71μmol/g.当木聚糖酶用量在0~15U/g时,随着木聚糖酶用量的增加,其处理的麦草浆中的己烯糖醛酸含量逐渐降低;而其处理的三倍体毛白杨浆中的己烯糖醛酸含量先逐渐降低,当酶用量达到10U/g后,含量基本不再变化.

关键词: 己烯糖醛酸, 木聚糖酶, 纸浆, 卡伯值

Abstract:

Xylanase was used to treat pulp for the purpose of reducing the hexenuronic acid content. The results indicate that xylanase treatment is effective in reducing the hexenuronic acid content, that with a xylanase dosage of 10U/g, the contents of hexenuronic acid in wheat straw pulp, Triploid of Populus Tomentosa pulp and eucalyptus pulp decrease respectively by 3.46, 7.83 and 7.71 μmol/g, and that, with the increase of xylanase dosage within a range of 0 - 15 U/g, the content of hexenuronic acid in wheat straw pulp gradually decreases while that in Triploid of Populus Tomentosa pulp decreases first and then keeps almost constant when the xylanase dosage reaches 10 U/g.

Key words: hexenuronic acid, xylanase, pulp, Kappa number