Mannanase enzymes, genes coding for them and a method for isolating the
genes, as well as a process for bleaching of lignocellulosic pulp
    1.
    发明授权
    Mannanase enzymes, genes coding for them and a method for isolating the genes, as well as a process for bleaching of lignocellulosic pulp 失效
    甘露聚糖酶,编码它们的基因和分离基因的方法,以及木质纤维素浆的漂白方法

    公开(公告)号:US5661021A

    公开(公告)日:1997-08-26

    申请号:US341568

    申请日:1994-11-22

    摘要: The present invention relates to a DNA sequence, which codes for endomannanase produced by fungi of the genus Trichoderma and transferred into a yeast or fungus strain induces that strain to produce endomannanase, as well as to a method for isolating genes coding for endomannanases. The invention also relates to vectors, yeast strains and fungal strains containing the DNA sequence. Furthermore, the invention provides an enzyme product containing at least one endomannanase, which contains at least one of the following endomannanases produced by fungi of the Trichoderma genus: an enzyme having mannanase activity and an isoelectric point (pI) of about 3.8, an enzyme having mannanase activity and a pI of about 4.1, an enzyme having mannanase activity and a pI of about 4.5, an enzyme having mannanase activity and a pI of about 5.4 and an enzyme having mannanase activity and a pI of about 6.5, the isoelectric points being determined by isoelectric focusing. The endomannanase enzyme and enzyme products according to the invention can be used for hydrolyzation of mannopolymers, in particular in connection with bleaching of lignocellulosic pulps.

    摘要翻译: PCT No.PCT / FI93 / 00219 Sec。 371日期:1994年11月22日 102(e)1994年11月22日日期PCT提交1993年5月24日PCT公布。 出版物WO93 / 24622 日期:1993年12月9日本发明涉及一种DNA序列,其编码由木霉属真菌产生并转移到酵母或真菌菌株中的内切葡聚糖酶诱导该菌株产生内切葡聚糖酶,以及分离基因编码方法 内分泌酶。 本发明还涉及含有DNA序列的载体,酵母菌株和真菌菌株。 此外,本发明提供一种含有至少一种含有甘露糖醛酸酶的酶产物,其含有由木霉属真菌产生的至少一种以下的甘露聚糖酶:具有约3.8的甘露聚糖酶活性和等电点(pI)的酶,其具有 甘露聚糖酶活性和约4.1的pI,具有约4.5的甘露聚糖酶活性和pI的酶,具有甘露聚糖酶活性和pI约为5.4的酶和具有约6.5的甘露聚糖酶活性和pI的酶,测定等电点 通过等电聚焦。 根据本发明的内切单体酶和酶产物可用于水解甘露聚合物,特别是与木质纤维素纸浆的漂白有关。

    Mannanase enzymes, genes coding for them and a method for isolating the
genes, as well as a process for bleaching of lignocellulosic pulp
    2.
    发明授权
    Mannanase enzymes, genes coding for them and a method for isolating the genes, as well as a process for bleaching of lignocellulosic pulp 失效
    甘露聚糖酶,编码它们的基因和分离基因的方法,以及木质纤维素浆的漂白方法

    公开(公告)号:US5854047A

    公开(公告)日:1998-12-29

    申请号:US911020

    申请日:1997-08-13

    摘要: The present invention relates to a DNA sequence, which codes for endomannanase produced by fungi of the genus Trichoderma and transferred into a yeast or fungus strain induces that strain to produce endomannanase, as well as to a method for isolating genes coding for endomannanases. The invention also relates to vectors, yeast strains and fungal strains containing the DNA sequence. Furthermore, the invention provides an enzyme product containing at least one endomannanase, which contains at least one of the following endomannanases produced by fungi of the Trichoderma genus: an enzyme having mannanase activity and an isoelectric point (pI) of about 3.8, an enzyme having mannanase activity and a pI of about 4.1, an enzyme having mannanase activity and a pI of about 4.5, an enzyme having mannanase activity and a pI of about 5.4 and an enzyme having mannanase activity and a pI of about 6.5, the isoelectric points being determined by isoelectric focusing. The endomannanase enzyme and enzyme products according to the invention can be used for hydrolyzation of mannopolymers, in particular in connection with bleaching of lignocellulosic pulps.

    摘要翻译: 本发明涉及一种DNA序列,其编码由木霉属真菌产生并转移到酵母或真菌菌株中的内切葡聚糖酶诱导该菌株产生胞外单胞菌素酶,以及分离编码内切甘露聚糖酶的基因的方法。 本发明还涉及含有DNA序列的载体,酵母菌株和真菌菌株。 此外,本发明提供一种含有至少一种含有甘露糖醛酸酶的酶产物,其含有由木霉属真菌产生的至少一种以下的甘露聚糖酶:具有约3.8的甘露聚糖酶活性和等电点(pI)的酶,其具有 甘露聚糖酶活性和约4.1的pI,具有约4.5的甘露聚糖酶活性和pI的酶,具有甘露聚糖酶活性和pI约为5.4的酶和具有约6.5的甘露聚糖酶活性和pI的酶,测定等电点 通过等电聚焦。 根据本发明的内切单体酶和酶产物可用于水解甘露聚合物,特别是与木质纤维素纸浆的漂白有关。

    Process for producing a fibre compositions
    6.
    发明申请
    Process for producing a fibre compositions 审中-公开
    纤维组合物的制造方法

    公开(公告)号:US20070143932A1

    公开(公告)日:2007-06-28

    申请号:US10583849

    申请日:2004-12-23

    IPC分类号: C08F251/02 D21H11/20 H01B1/12

    CPC分类号: H01B1/124 D21C9/005 D21H11/20

    摘要: The present invention relates to fibre compositions. In particular, the present invention concerns a process for producing a fibre composition comprising a lignocellulosic fibre material and a synthetic, electrically conductive polymer formed by polymerized monomers. The invention provides for good adhesion between the fibre matrix and the polymer, because the monomer is polymerized directly on the fibre. The conductivity of the polymer is improved and the electrical properties and conductivity levels of the modified fibre can be adjusted by changing the amounts of the electrically conductive polymer.

    摘要翻译: 本发明涉及纤维组合物。 特别地,本发明涉及一种生产包含木质纤维素纤维材料和由聚合单体形成的合成导电聚合物的纤维组合物的方法。 本发明提供了纤维基质和聚合物之间良好的粘附性,因为单体直接在纤维上聚合。 提高聚合物的导电性,并且可以通过改变导电聚合物的量来调节改性纤维的电性能和电导率水平。

    Method for Modifying Polyamide
    10.
    发明申请
    Method for Modifying Polyamide 审中-公开
    聚酰胺改性方法

    公开(公告)号:US20080289120A1

    公开(公告)日:2008-11-27

    申请号:US11629090

    申请日:2005-06-13

    IPC分类号: C09B62/00

    摘要: The present invention relates to a method for modifying polyamide. The method comprises that polyamide is contacted with an enzyme preparation comprising an effective amount of protease enzyme in aqueous environment under conditions suitable for the function of the enzyme. The enzyme is preferably selected from the group of aspartic proteases, cysteine proteases and metallo-proteases.

    摘要翻译: 本发明涉及一种改性聚酰胺的方法。 该方法包括使聚酰胺与含有有效量的蛋白酶的酶制剂在含水环境中在适于酶功能的条件下接触。 酶优选选自天冬氨酸蛋白酶,半胱氨酸蛋白酶和金属蛋白酶。