Biobleaching of pulp from agricultural residues with enzymes

被引：0
|
作者：
Jimenez, L
Martinez, C
Maestre, F
Lopez, F
机构：
来源：
BIOPROCESS ENGINEERING | 1996年 / 14卷 / 05期
关键词：
D O I：
10.1007/BF00369923
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Pulp from agricultural residues (wheat straw) was bleached with the DE(P)D (chlorine dioxide-extraction with soda and hydrogen peroxide-chlorine dioxide) or P sequence (hydrogen peroxide) after enzymatic pretreatment with cartazyme HS. The enzymatic pretreatment increases the final brightness of the pulp after bleaching with the P and DE(P)D sequences (+3.7%) and saves bleaching reagents (from 3.5 to 5.2%); however, it also decreases the pulp yield (from 9.3 to 14.1%) and breaking length (from 20.2 to 13.2%), burst index (from 13.1 to 8.2%) and tear index (from 4.2% to 16.8%) of the paper sheets formed from the pulp.
引用
收藏
页码：261 / 262
页数：2
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