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   木聚糖酶酶活 在 有机化工 分类中 的翻译结果: 查询用时:0.078秒
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相关语句
  xylanase activity
    Methods of Xylanase Activity Determination
    木聚糖酶酶活测定方法
短句来源
    METHODS FOR XYLANASE ACTIVITY DETERMINATION
    木聚糖酶酶活的具体测定方法
短句来源
    This study introduces and compares three methods of xylanase activity determination, states method of operation and matters needing attention for method of work curve at details and supplies practical application.
    介绍和比较了测定本聚糖酶酶活的三种方法,详述了工作曲线法测定木聚糖酶酶活的操作方法及注意事项,并提供了实际应用。
短句来源
    This study introduces and compares three methods of xylanase activity determination and describes the operation and necessary attentions in details of the working curves method for practical application.
    介绍和比较了测定木聚糖酶酶活的 3种方法 ,详述了工作曲线法测定木聚糖酶酶活的具体操作方法及注意事项 ,并提供了实际应用
短句来源
    The xylanase activity can reach 44.7 U/mL when GH196 was cultivated by using rice straw and wheat bran as compound carbon source under 150 r/min shaking condition.
    150 r/min振荡培养5 d,木聚糖酶酶活达到44.7 U/mL。
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  “木聚糖酶酶活”译为未确定词的双语例句
    STUDY ON MEASURING METHODS OF XYLANSE ACTIVITY
    木聚糖酶酶活测定方法的探讨
短句来源
    A stain is gained that product xylanase whose activity is high by mutagenesis and selection, and investigating the condition of liquid state fermentation and characteristics of produced xylanase.
    同时对真菌性黑曲霉及细菌性蜡状和枯草芽孢杆菌木聚糖酶合成菌株进行诱变选育,筛选培育出产木聚糖酶酶活高并适用于小麦麸皮中木聚糖降解的菌株,并对液体发酵产酶条件及所产木聚糖酶的纯化和酶学性质进行研究。
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This study introduces and compares three methods of xylanase activity determination, states method of operation and matters needing attention for method of work curve at details and supplies practical application.

介绍和比较了测定本聚糖酶酶活的三种方法,详述了工作曲线法测定木聚糖酶酶活的操作方法及注意事项,并提供了实际应用。

This study introduces and compares three methods of xylanase activity determination and describes the operation and necessary attentions in details of the working curves method for practical application.

介绍和比较了测定木聚糖酶酶活的 3种方法 ,详述了工作曲线法测定木聚糖酶酶活的具体操作方法及注意事项 ,并提供了实际应用

Effects of carbon resource,culture temperature,initial pH value and carbon-to-nitrogen ratio on xylanase and cellulase synthesis by Trichoderma reesei Rut C-30 have been investigated.The results show that the mixture of corncob xylan and sulfite pulp as carbon resource could stimulate the synthesis of xylanase and cellulase;The culture temperature of 25-26 ℃ could stimulate the synthesis of xylanase and cellulase,the highest xylanases activity((156.53 IU/mL)) and CMCase activity(0.589 IU/mL) could be obtained...

Effects of carbon resource,culture temperature,initial pH value and carbon-to-nitrogen ratio on xylanase and cellulase synthesis by Trichoderma reesei Rut C-30 have been investigated.The results show that the mixture of corncob xylan and sulfite pulp as carbon resource could stimulate the synthesis of xylanase and cellulase;The culture temperature of 25-26 ℃ could stimulate the synthesis of xylanase and cellulase,the highest xylanases activity((156.53 IU/mL)) and CMCase activity(0.589 IU/mL) could be obtained after 96 h cultivation;When culture temperature was 35-36 ℃,the highest xylanase activity(113.73 IU/mL) and CMCase activity(0.208 IU/mL) could be obtained after 48 h cultivation;Low initial pH value could stimulate the synthesis of cellulase,whereas high initial pH value could prolong culture time of xylanase synthesis and depress the synthesis of cellulase.When the initial pH (values) were 4.0,4.4,4.8,5.4,6.0,the ratios of xylanase to cellulase were 259,327,425,865,1 016,respectively,(after) (72 h) cultivation;Low ratio of carbon to nitrogen could stimulate the synthesis of cellulase,and high ratio of carbon to nitrogen could not only retard the synthesis of xylanase,but also depress the synthesis of cellulase.In the controlled cultivation of T.reesei Rut C-30 with a mixture of 6.5 g/L corncob xylan and 0.5 g/L sulfite pulp as carbon source,high xylanase activity(186.93 IU/mL) and low CMCase activity(0.156 IU/mL) could be obtained after 6 days (cultivation).At the earlier stage,temperature was controlled to 35-36 ℃ with an initial pH value of 6.0 and higher (ratio) of carbon to nitrogen(7.2),while at the later stage temperature was reduced to 25-26 ℃.

以里氏木霉 (Trichodermareesei)RutC-30为产酶菌,研究了碳源、培养温度、初始pH值、碳氮比对木聚糖酶和纤维素酶合成的影响。结果表明,粗木聚糖和亚硫酸盐纸浆混合作为碳源有利于木聚糖酶和纤维素酶的合成;低温有利于木聚糖酶和纤维素酶的合成,但产酶时间较长,高温对木聚糖酶的合成有一定的影响,对纤维素酶的合成能有效地抑制,且产酶时间较短;初始pH值低有利于纤维素酶的合成,初始pH值高则延长了木聚糖酶的合成时间,且强烈抑制纤维素酶的合成;低碳氮比有利于纤维素酶的合成,高碳氮比使得木聚糖酶的合成滞后,能够有效抑制纤维素酶的合成。以粗木聚糖和亚硫酸盐纸浆混合作为碳源,调控培养温度、初始pH值和碳氮比能有效地促进木聚糖酶的合成,抑制纤维素酶的合成,致使木聚糖酶活与纤维素酶活的比值提高,从而有利于选择性合成纸浆漂白用木聚糖酶,调控培养方式为:提高碳氮比 ( 7. 2 )和初始pH值 ( 6. 0 ),在培养初期 ( 1d)培养温度为 35 ~36℃,中后期培养温度 25~26℃,调控 6d后,木聚糖酶酶活和纤维素酶酶活分别为 186. 93和 0. 156IU/mL,酶活比为 1 198。

 
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