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    • 11. 发明申请
    • Method of producing polyhydroxyalkanoate
    • 聚羟基链烷酸酯的制备方法
    • US20060105440A1
    • 2006-05-18
    • US11237686
    • 2005-09-29
    • Koichi KinoshitaYoshifumi YanagidaFumio OsakadaYasuyoshi Ueda
    • Koichi KinoshitaYoshifumi YanagidaFumio OsakadaYasuyoshi Ueda
    • C12P7/62
    • C12P7/62C08G63/89
    • The present invention has its object to provide a method of producing PHA by extracting, separating, and purifying PHA from biomass containing PHA having an weight average molecular weight of more than 2,000,000, by which smooth stirring can be carried out during extraction and filterability of a residue becomes good to thereby efficiently produce PHA with good operability. In the present invention, PHA is extracted, separated, and purified from biomass by a method of producing polyhydroxyalkanoate by extracting and isolating polyhydroxyalkanoate by using an aprotic organic solvent from biomass containing polyhydroxyalkanoate having a weight average molecular weight of more than 2,000,000, which comprises decreasing the weight average molecular weight of the polyhydroxyalkanoate through any one of the following treatments: (a) the biomass is heated at 40 to 500° C. before addition of the aprotic organic solvent; (b) the biomass is heated at 40 to 500° C. before addition of the aprotic organic solvent, and is further heated at 40 to 200° C. in the aprotic organic solvent; (c) the biomass is heated at 40 to 500° C. before addition of the aprotic organic solvent, and is further heated at 40 to 200° C. in the aprotic organic solvent in the presence of water and/or an alcohol; (d) the biomass is not heated before addition of the aprotic organic solvent, but is heated at 40 to 200° C. in the aprotic organic solvent; and (e) the biomass is not heated before addition of the aprotic organic solvent, but is heated at 40 to 200° C. in the aprotic organic solvent in the presence of water and/or an alcohol.
    • 本发明的目的是提供一种通过从重均分子量大于2,000,000的PHA的生物质中提取,分离和纯化PHA来生产PHA的方法,通过该方法可以在提取过程中进行平稳的搅拌和过滤性 残留物变得良好,从而有效地产生具有良好可操作性的PHA。 在本发明中,通过使用含有重均分子量大于2,000,000的聚羟基链烷酸酯的生物质的非质子有机溶剂提取和分离聚羟基链烷酸酯的方法,从生物质中提取,分离和纯化PHA,其包括降低 通过以下任何一种处理,聚羟基链烷酸酯的重均分子量:(a)在加入非质子有机溶剂之前,将生物质在40-500℃下加热; (b)在加入非质子有机溶剂之前将生物质在40-500℃加热,并在非质子有机溶剂中在40〜200℃下进一步加热; (c)在加入非质子有机溶剂之前将生物质加热至40-500℃,并在水和/或醇存在下,在非质子有机溶剂中在40〜200℃下进一步加热; (d)在加入非质子有机溶剂之前,不加热生物质,但在非质子有机溶剂中在40〜200℃下加热生物质; 和(e)生物质在加入非质子有机溶剂之前不被加热,但在水和/或醇的存在下,在非质子传递的有机溶剂中在40-200℃下加热。
    • 15. 发明申请
    • Process for the production of optically active compounds having substituents at the 2-position
    • 用于制备在2-位具有取代基的光学活性化合物的方法
    • US20060247458A1
    • 2006-11-02
    • US10546823
    • 2004-02-25
    • Shogo YamamotoToshihiro TakedaYoshihide FuseYasuyoshi Ueda
    • Shogo YamamotoToshihiro TakedaYoshihide FuseYasuyoshi Ueda
    • C07C319/02
    • C07B53/00C07B2200/07C07C51/363C07C319/14C07C57/58C07C323/56
    • The present invention provides a process for producing an optically active compound having a thio group at the 2-position important for manufacturing medicines. An optically active compound having a hydroxyl group at the 2-position is chlorinated with inversion of the configuration at the 2-position, and the resultant optically active compound having a chlorine atom at the 2-position is reacted with a metal thiolate to introduce a thio group with inversion of the configuration at the 2-position. This process is capable of minimizing racemization and producing an optically active compound having a thio group at the 2-position at low cost in high yield. When the optically active compound having a chlorine atom at the 2-position is reacted with the metal thiolate in coexistence with water in the reaction system, the optically active compound having a thio group at the 2-position with higher optical purity can be produced in higher yield. An optically active carboxylic acid having a thio group at the 2-position is crystallized in the presence of an aliphatic hydrocarbon solvent and/or a sulfur-containing solvent to effectively remove coexistent impurities such as an optical isomer and the like, thereby producing crystals of an optically active carboxylic acid having a thio group at the 2-position with higher purity.
    • 本发明提供了制造药物重要的2位具有硫基的光学活性化合物的方法。 在2-位上具有羟基的光学活性化合物用2-位反转形式进行氯化,所得2-位上具有氯原子的光学活性化合物与金属硫醇盐反应,引入 硫基与2-位配位反转。 该方法能够使外消旋化最小化,并以高产率以低成本制备在2-位具有硫基的光学活性化合物。 当反应体系中2-位上具有氯原子的光学活性化合物与金属硫醇盐在水中共存时,具有较高光学纯度的2位具有硫基的光学活性化合物可以在 更高的产量。 在脂肪族烃溶剂和/或含硫溶剂的存在下,在2-位具有硫基的光学活性羧酸结晶化,以有效除去共同的杂质如旋光异构体等,从而产生 在2-位具有较高纯度的具有硫基的光学活性羧酸。
    • 16. 发明授权
    • Method for degradation of nucleic acids and use thereof
    • 核酸降解方法及其用途
    • US07435567B2
    • 2008-10-14
    • US11070083
    • 2005-03-03
    • Fumio OsakadaYoshifumi YanagidaYasuyoshi Ueda
    • Fumio OsakadaYoshifumi YanagidaYasuyoshi Ueda
    • C12P7/62
    • C12M47/06C12P7/62
    • The present invention provides a method to efficiently degrade nucleic acids, which result in a viscosity increase of the solution thereof on the occasion of decomposition or solubilization of microbial cells, in an easy and simple manner in the step of recovering various useful substance produced by a microorganism, and a use thereof. The product recovery method of the present invention make the product recovery from within microbial cells with ease under relatively mild conditions, because, by bringing living microbial cells into contact with a little amount of hypochlorous acid or a salt thereof, autodigestion of nucleic acids is induced and following decomposition of microbial cells or viscosity increase of the solution thereof after dissolution is inhibited. The method of the present invention is particularly preferred in recovering polyhydroxyalkanoates, which are biodegradable polymers, from microbial cells.
    • 本发明提供了一种在回收各种有用物质的步骤中以容易且简单的方式有效降解核酸的方法,其在微生物细胞的分解或溶解的情况下导致其溶液的粘度增加, 微生物及其用途。 本发明的产品回收方法使得在相对温和的条件下容易从微生物细胞中回收产物,因为通过使活的微生物细胞与少量的次氯酸或其盐接触,诱导了核酸的自身消化 并且随着微生物细胞的分解或溶解后其溶液的粘度增加被抑制。 本发明的方法特别优选从微生物细胞回收可生物降解的聚合物的聚羟基链烷酸酯。
    • 17. 发明申请
    • Method for degradation of nucleic acids and use thereof
    • 核酸降解方法及其用途
    • US20050196827A1
    • 2005-09-08
    • US11070083
    • 2005-03-03
    • Fumio OsakadaYoshifumi YanagidaYasuyoshi Ueda
    • Fumio OsakadaYoshifumi YanagidaYasuyoshi Ueda
    • C12P7/62
    • C12M47/06C12P7/62
    • The present invention provides a method to efficiently degrade nucleic acids, which result in a viscosity increase of the solution thereof on the occasion of decomposition or solubilization of microbial cells, in an easy and simple manner in the step of recovering various useful substance produced by a microorganism, and a use thereof. The product recovery method of the present invention make the product recovery from within microbial cells with ease under relatively mild conditions, because, by bringing living microbial cells into contact with a little amount of hypochlorous acid or a salt thereof, autodigestion of nucleic acids is induced and following decomposition of microbial cells or viscosity increase of the solution thereof after dissolution is inhibited. The method of the present invention is particularly preferred in recovering polyhydroxyalkanoates, which are biodegradable polymers, from microbial cells.
    • 本发明提供了一种在回收各种有用物质的步骤中以容易且简单的方式有效降解核酸的方法,其在微生物细胞的分解或溶解的情况下导致其溶液的粘度增加, 微生物及其用途。 本发明的产品回收方法使得在相对温和的条件下容易从微生物细胞中回收产物,因为通过使活的微生物细胞与少量的次氯酸或其盐接触,诱导了核酸的自身消化 并且随着微生物细胞的分解或溶解后其溶液的粘度增加被抑制。 本发明的方法特别优选从微生物细胞回收可生物降解的聚合物的聚羟基链烷酸酯。