漆酶活化处理对木材自由基变化的影响

doi:10.11707/j.1001-7488.20070424

林业科学 ›› 2007, Vol. 43 ›› Issue (04): 134-136.doi: 10.11707/j.1001-7488.20070424

漆酶活化处理对木材自由基变化的影响

段新芳¹ 曹远林² 曹永建¹ 周冠武¹ 陈永圣² 朱家琪¹ 赵保路²

1.中国林业科学研究院木材工业研究所,北京100091；2.中国科学院生物物理研究所,北京100101

收稿日期:2005-11-10 修回日期:1900-01-01 出版日期:2007-04-25 发布日期:2007-04-25

Changes of Intensities of Reactive Oxygen Species (ROS) Free Radicals from Laccase-Treated Woods

Duan Xinfang¹,Cao Yuanlin²,Cao Yongjian¹,Zhou Guanwu¹,Chen Yongsheng²,Zhu Jiaqi¹,Zhao Baolu²

1.Research Institute of Wood Industry, CAF Beijing 100091; 2.Institute of Biophysics, Chinese Academy of Sciences Beijing 100101

Received:2005-11-10 Revised:1900-01-01 Online:2007-04-25 Published:2007-04-25

摘要/Abstract

关键词: 漆酶, 思茅松, 枫香, 活性氧, 自由基

Abstract:

In order to investigate the changes of free radicals in the suspension liquid of wood treated by laccase, wood powder of Pinus kesiya var. langbianensis sapwood , heartwood and Liquidambar formosana were selected to detect the changes of free radicals after laccase treatment. The laccase treatment parameters were as follows: pH 3.47 and 6.50, 2 hours of laccase incubation, the temperature of 32 ℃ and enzyme dosage 19 U·g ^-1 dry wood powder. The results showed that there was a significant difference of the intensities of the reactive oxygen species (ROS) free radicals in the aqueous suspension of wood between control and samples treated by laccase. The intensities of ROS free radicals among different woods treated by laccase was marked difference. The intensities of ROS free radicals of Pinus kesiya var. langbianensis sapwood or heartwood treated by laccase were higher than that of Liquidambar formosana.

Key words: laccase, Pinus kesiya var. langbianensis, Liquidambar formosana, reactive oxygen species (ROS), free radicals

段新芳曹远林曹永建周冠武陈永圣朱家琪赵保路. 漆酶活化处理对木材自由基变化的影响[J]. 林业科学, 2007, 43(04): 134-136.

Duan Xinfang;Cao Yuanlin;Cao Yongjian;Zhou Guanwu;Chen Yongsheng;Zhu Jiaqi;Zhao Baolu. Changes of Intensities of Reactive Oxygen Species (ROS) Free Radicals from Laccase-Treated Woods[J]. Scientia Silvae Sinicae, 2007, 43(04): 134-136.

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漆酶活化处理对木材自由基变化的影响

Changes of Intensities of Reactive Oxygen Species (ROS) Free Radicals from Laccase-Treated Woods

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