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laccase treatment
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  “laccase treatment”译为未确定词的双语例句
     The inactivated laccase treatment resulted no change of tensile strength. The optimal enzymatic treatment conditions of improving the wet strength were: laccase dosage 16 U for 1 g pulp, temperature 45 ℃,pH value 4.5 and reaction time 2 h.
     提高纸浆湿强度的最佳酶促反应条件为:酶用量16U(以每克绝干浆计),温度45℃,pH值4.5,处理时间2h。
短句来源
     Effect of Laccase Treatment Conditions of Lignosulphonate on Shearing Strength of Plywood
     漆酶活化木素磺酸盐条件对胶合板强度的影响
短句来源
     Compared with unpretreatment pulp and laccase treatment pulp,the britghtness of pretreated pulp with xylanase increased by 5.3 and 0.6 SBD units.
     木聚糖酶预处理对改善浆料白度方面则优于漆酶,与未处理浆和漆酶生物化学浆相比分别提高5.3%和0.6%(SBD)。
短句来源
     The results showed that the optimum conditions of ginsenosides extraction technique were as follows: First, laccase treatment: 1g Panax ginseng was put into 15ml (92U/ml) laccase with temperature 30℃, pH value 3.5 and fermenting time 1.5h.
     结果表明人参总皂甙最佳提取工艺为:先用漆酶酶解,每克人参加入15ml漆酶粗酶液(92U/ml),在30℃、pH3.5的条件下酶解1.5h,然后水浸提取人参总皂甙。
短句来源
     Modification of Bleached Masson Pine GP by Laccase Treatment
     漆酶对漂白马尾松磨石磨木浆的酶法改性
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  相似匹配句对
     L. P. treatment.
     L. P.
短句来源
     Immobilization of laccase and its application to wastewater treatment
     漆酶的固定化及其在废水处理中的应用
短句来源
     Influence of laccase treatment on microstructure of wood fiber and fiberboard
     漆酶处理对木质纤维和纤维板微细结构的影响
短句来源
     Experience in the treatment
     老年焦虑性神经症的治疗经验
短句来源
     Laccase and Its Applications
     漆酶及其应用
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  laccase treatment
Laccase treatment generated radicals in the fibers.
      
Different hues and depths of shades could be achieved by varying the concentration of the modifiers and the time of laccase treatment.
      
The improvement of board properties correlates with the number of radicals formed in the fibers on laccase treatment in water suspension.
      
The laccase treatment also resulted in significant degradation of the ester bonded extractives such as SE and TG.
      
The ability of Trametes species to decolorize different dyes is evident, but the advantage of laccase treatment is a shorter treatment period.
      
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Using TCF bleaching sequence including laccase/mediator system (LMS), bagasse kraft pulp was bleached to a brightness of 80.7%ISO at 2% dosage of H 2O 2. Radicals in the LMS treated pulp, laccase treated pulp and in the reaction liquor were determined respectively by ESR spectroscopy. It was found that there were 2 main radicals formed during LMS and laccase treatment: phenoxy radical and peroxide radical. The amounts of these radicals generated in pulp during LMS and laccase treatment and in the...

Using TCF bleaching sequence including laccase/mediator system (LMS), bagasse kraft pulp was bleached to a brightness of 80.7%ISO at 2% dosage of H 2O 2. Radicals in the LMS treated pulp, laccase treated pulp and in the reaction liquor were determined respectively by ESR spectroscopy. It was found that there were 2 main radicals formed during LMS and laccase treatment: phenoxy radical and peroxide radical. The amounts of these radicals generated in pulp during LMS and laccase treatment and in the reaction liquor were compared.

采用含漆酶 /介体体系 (LMS)漂段的TCF漂序 ,在H2 O2 用量为 2 %的情况下 ,将蔗渣硫酸盐浆漂到 80 7%ISO的白度。利用电子自旋共振谱 (ESR)研究了蔗渣硫酸盐浆在漆酶 /介体体系中产生自由基的情况 ,并与蔗渣硫酸盐浆在漆酶中产生自由基的情况以及仅有漆酶和介体而没有纸浆时产生自由基的情况对比 ,从而了解漆酶 /介体体系漂白纸浆的自由基反应机理。

A laccasemediator system was applied on pretreatment of wheatstraw pulps.The characteristics of enzyme treated pulps and their bleaching abilities by several total chlorine free(TCF) bleaching sequences were investigated.The results show that biotreatment of laccasemediator system can enhances not only optical properties but also physical strength of the treated pulps.After laccase treatment,brightness gain of pulp was up to 12.9 units (%,ISO).Using an OEPP bleaching sequence,the bleached pulp brightness...

A laccasemediator system was applied on pretreatment of wheatstraw pulps.The characteristics of enzyme treated pulps and their bleaching abilities by several total chlorine free(TCF) bleaching sequences were investigated.The results show that biotreatment of laccasemediator system can enhances not only optical properties but also physical strength of the treated pulps.After laccase treatment,brightness gain of pulp was up to 12.9 units (%,ISO).Using an OEPP bleaching sequence,the bleached pulp brightness of laccase treated pulps was higher by 14 units than that of bleached initial pulp.Bleached by a QPP bleaching sequence,laccase treatment could improve the bleached pulp brightness by 18.3 units more than that from initial pulp.After QPaP sequence bleaching,brightness of laccase treated pulp was of 8.1 units higher than that of bleached initial pulp.If the target brightness was the same,laccase treatment could save much bleaching chemicals,that was beneficial to reduce the load of bleaching effluence.The strength of bleached laccase treated pulp was similar to or a little bit lower than that of bleached initial pulp.

 采用漆酶 介体系统对麦草化学浆进行预处理,研究了几种全无氯漂白(TCF漂白)[氧碱脱木质素配合两段过氧化氢漂白(OEPP)、两段过氧化氢漂白(QPP)和过乙酸配合一段过氧化氢漂白(PaP)]对漆酶处理后纸浆漂白性能的作用。结果表明:麦草浆经过漆酶预处理后,白度上升了12.9个白度单位(%,ISO),漆酶处理浆氧碱脱木质素配合过氧化氢漂白后比原浆在相同条件下漂白后白度高14个白度单位以上,经两段过氧化氢漂白后白度比原浆在相同条件下(过氧化氢用量4%)漂白后白度高18.3个白度单位,经过乙酸过氧化氢漂白后比原浆在相同条件下漂白后白度高8.1个白度单位。漆酶处理浆漂白后强度比原浆漂白后的低,但是其白度高,如漂至相同的白度可以节约大量漂剂,有利于改善浆的质量,降低漂白废水的污染负荷。

Cellulolytic enzyme lignin(CEL) is modified by laccase,laccas e /mediator system(LMS),and then treated under a high temperature after laccase trea tments Phenolic hydroxyl contents of lignin are measured,and UV and IR spectru m are analyzed Compared with control sample,phenolic hydroxyl contents of CEL ar e higher after laccase treatment,whereas they are lower aner LMS treatment In LMS,lignin modification by laccase/ABTS is higher than by laccase/VA And afte r subsequent high...

Cellulolytic enzyme lignin(CEL) is modified by laccase,laccas e /mediator system(LMS),and then treated under a high temperature after laccase trea tments Phenolic hydroxyl contents of lignin are measured,and UV and IR spectru m are analyzed Compared with control sample,phenolic hydroxyl contents of CEL ar e higher after laccase treatment,whereas they are lower aner LMS treatment In LMS,lignin modification by laccase/ABTS is higher than by laccase/VA And afte r subsequent high temperature process,phenolic hydroxyl contents of lignin incre ase It is found from IR that in treated lignin by laccase and LMS,relative con tent of lilac phenolic hydroxyl group is higher,and alcoholic hydroxyl and α-c onjugated carboxide group contents are a little higher But methoxyl group conte nt does not change from IR

利用漆酶、漆酶 /介体体系对枫香木酶解木素进行处理 ,并对处理后木素进行高温处理 ,研究各种处理过程木素的酚羟基含量变化 ,同时进行了紫外和红外光谱解析。与对照样相比较 ,经漆酶处理后 ,木素的酚羟基含量增加 ;而经漆酶 /介体体系处理后 ,木素酚羟基含量降低 ;在漆酶 /介体处理中 ,两种介体相比 ,漆酶 /ABTS体系对木素的作用效果更为明显 ;经漆酶和漆酶 /介体处理的木素再经高温处理后 ,木素的酚羟基含量比未经高温处理的木素的高。红外光谱分析表明 ,经漆酶、漆酶 /介体处理后木素中紫丁香基结构型O H相对含量增多 ;经过漆酶处理后的木素醇羟基和α 位共轭羰基略有增加 ;但从红外光谱分析中没有发现甲氧基的变化

 
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