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    • 1. 发明授权
    • Xylanases, nucleic acids encoding them and methods for making and using them
    • 木聚糖酶,编码它们的核酸以及制备和使用它们的方法
    • US08486680B2
    • 2013-07-16
    • US12681604
    • 2008-08-01
    • Kevin A. GrayReinhard Dirmeier
    • Kevin A. GrayReinhard Dirmeier
    • C12N9/24
    • C12P19/14C12N9/248C12P19/02D21H17/22Y02E50/16Y02T50/678Y10T428/249921
    • The invention relates to enzymes having xylanase, mannanase and/or glucanase activity, e.g., catalyzing hydrolysis of internal β-1,4-xylosidic linkages or endo-β-1,4-glucanase linkages; and/or degrading a linear polysaccharide beta-1,4-xylan into xylose. Thus, the invention provides methods and processes for breaking down hemicellulose, which is a major component of the cell wall of plants, including methods and processes for hydrolyzing hemicelluloses in any plant or wood or wood product, wood waste, paper pulp, paper product or paper waste or byproduct. In addition, methods of designing new xylanases, mannanases and/or glucanases and methods of use thereof are also provided. The xylanases, mannanases and/or glucanases have increased activity and stability at increased pH and temperature.
    • 本发明涉及具有木聚糖酶,甘露聚糖酶和/或葡聚糖酶活性的酶,例如催化内部β-1,4-木糖苷键或内切-β-1,4-葡聚糖酶键的水解; 和/或将线性多糖β-1,4-木聚糖降解成木糖。 因此,本发明提供了分解作为植物细胞壁的主要成分的半纤维素的方法和方法,包括在任何植物或木材或木制品,木材废料,纸浆,纸制品中水解半纤维素的方法和方法, 废纸或副产品。 另外,还提供了设计新的木聚糖酶,甘露聚糖酶和/或葡聚糖酶的方法及其使用方法。 木聚糖酶,甘露聚糖酶和/或葡聚糖酶在增加的pH和温度下具有增加的活性和稳定性。
    • 6. 发明授权
    • DSZD utilization in desulfurization of DBT by rhodococcus sp. IGTS8
    • DBZ通过罗红球菌脱硫后的DSZD利用率 IGTS8
    • US5811285A
    • 1998-09-22
    • US715554
    • 1996-09-19
    • Kevin A. GrayCharles H. SquiresDaniel J. Monticello
    • Kevin A. GrayCharles H. SquiresDaniel J. Monticello
    • C12N15/09C10G31/00C10G32/00C12N1/20C12N1/21C12N9/02C12N9/04C12N15/52C12N15/53C12P1/00C12R1/01C12S1/02C12N15/00C07H21/04
    • C12N1/20C10G31/00C10G32/00C12N15/52C12N9/0004C12N9/0006C12P1/00C12R1/01
    • The invention relates to the discovery that the rate of reaction of the desulfurization of fossil fuels is enhanced by the addition of an oxidoreductase to the biocatalyst. The invention is drawn to a method for enhancing the rate of desulfurizing a fossil fuel containing organic sulfur compounds, comprising the steps of: a) contacting the fossil fuel with an aqueous phase containing a biocatalyst capable of cleaving carbon-sulfur bonds and a rate-enhancing amount of an oxidoreductase, thereby forming a fossil fuel and aqueous phase mixture; b) maintaining the mixture of step (a) under conditions sufficient for cleavage of the carbon-sulfur bonds of the organic sulfur molecules by the biocatalyst, thereby resulting in a fossil fuel having a reduced organic sulfur content; and c) separating the fossil fuel having a reduced organic sulfur content from the resulting aqueous phase. The invention also relates to a recombinant microorganism containing one or more recombinant DNA molecules which encode a biocatalyst capable of desulfurizing a fossil fuel containing organic sulfur molecules and which encode an oxidoreductase. The invention also relates to a composition comprising (a) a biocatalyst capable of desulfurizing a fossil fuel containing organic sulfur molecules and (b) an oxidoreductase.
    • 本发明涉及通过向生物催化剂中加入氧化还原酶来提高化石燃料脱硫反应速率的发现。 本发明涉及提高含有机硫化合物的化石燃料脱硫速率的方法,包括以下步骤:a)使化石燃料与含有能够裂解碳 - 硫键的生物催化剂的水相接触, 增加氧化还原酶的量,从而形成化石燃料和水相混合物; b)将步骤(a)的混合物保持在足以通过生物催化剂裂解有机硫分子的碳 - 硫键的条件下,从而导致具有降低的有机硫含量的化石燃料; 和c)从所得水相中分离具有降低的有机硫含量的化石燃料。 本发明还涉及含有一种或多种重组DNA分子的重组微生物,所述重组DNA分子编码能够脱硫含有有机硫分子的化石燃料并编码氧化还原酶的生物催化剂。 本发明还涉及一种组合物,其包含(a)能够使含有机硫分子的化石燃料脱硫的生物催化剂和(b)氧化还原酶。