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Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (03): 96-102.doi: 10.11707/j.1001-7488.20070316

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Bleaching of Bamboo Kraft Pulp with Alkaline Xylanase

Huang Liulian1,2,Chen Lihui1,Zhang Jianchun1,Pu Junwen2   

  1. 1.College of Materials Engineering, Fujian Agriculture and Forestry University Fuzhou 350002; 2. College of Material Science and Technology,Beijing Forestry University Beijing 100083
  • Received:2006-03-01 Revised:1900-01-01 Online:2007-03-25 Published:2007-03-25

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Abstract:

The pretreatment condition and the influence of elemental chlorine free (ECF) bleaching of xylanase to bamboo kraft pulp(KP) has been carried out. The results indicate that the best pretreatment condition of enzyme Unikfect 100 is: the consistency is 4%, pH 9.0,temperature 65 ℃,time 20 min, enzyme dosage 15.0×10-7 mol·s-1g-1 thick liquid. The influence of ECF bleaching is that the effect of O-X-D1-E OP-D2 is better than O-D/C-EOP-D2. At the similar brightness, the former pulp has higher viscosity and intensity.

Key words: bamboo pulp, biobleaching, xylanase