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39 条记录 (耗时 0.012 秒)

    Preparation of levulose from granular starch
    1.
    发明授权
    Preparation of levulose from granular starch 失效
    从颗粒淀粉制备左旋糖

    公开(公告)号：US4009074A

    公开(公告)日：1977-02-22

    申请号：US558184

    申请日：1975-03-13

    申请人： Raoul Guillaume Philippe Walon

    发明人： Raoul Guillaume Philippe Walon

    IPC分类号： C13K11/00 ,  C12D13/02

    CPC分类号： C13K11/00 ,  Y10S435/836 ,  Y10S435/887

    摘要： A process for the direct conversion of granular starch to levulose comprising mixing a granular starch with water, bacterial alpha-amylase, glucoamylase and a glucose isomerase derived from Streptomyces albus at a temperature of from about 40.degree. to about 70.degree. C. and a pH of from about 5.0 to about 7.0 and maintaining the starch in essentially granular form until a soluble hydrolysate containing levulose is produced, wherein any residual insoluble starch is in essentially granular, ungelatinized form.

    摘要翻译： 一种将粒状淀粉直接转化成左旋糖的方法，其包括将粒状淀粉与水，细菌α-淀粉酶，葡糖淀粉酶和源自阿斯巴斯芽孢杆菌的葡萄糖异构酶在约40℃至约70℃的温度和pH 为约5.0至约7.0，并将淀粉保持为基本颗粒形式，直到产生含有左旋糖的可溶性水解产物，其中任何残留的不溶性淀粉基本上呈颗粒状，未凝胶化形式。

    Production of new amylases by cultivation of streptomyces and uses of these new amylases
    2.
    发明授权
    Production of new amylases by cultivation of streptomyces and uses of these new amylases 失效
    通过培养结构形式生产新的淀粉和使用这些新的淀粉

    公开(公告)号：US3804717A

    公开(公告)日：1974-04-16

    申请号：US19096271

    申请日：1971-10-20

    申请人： MEIJI SEIKA KAISHA

    发明人： KOAZE Y ,  NAKAJIMA Y ,  HIDAKA H ,  YOSHIDA K ,  ITO J ,  NIWA T ,  ADACHI T ,  UEDA M ,  NIIDA T ,  SHOMURA T

    IPC分类号： C12N9/28 ,  C12N9/26 ,  C12P19/14 ,  C12D13/10

    CPC分类号： C12P19/14 ,  Y10S435/886 ,  Y10S435/887 ,  Y10S435/889 ,  Y10S435/898

    摘要： THIS INVENTION RELATES TO PRODUCING A NEW AMYLASE BY CULTIVATING A STRAIN OF THE PARTICULAR SEVEN SPECIES OF STREPTOMYCES; STREPTOMUCES ALUBUS, STREPTOMYCES AUREOFACIENS, STREPTOMYCES HYDROSCOPICUS, STREPTOMYCES HYDROSCOPCUS VAR. ANGUSTOMYCETICUS, STREPTOMYCES VIRIDOCHROMOGENES, STREPTOMYCES FLAVUS AND STREPTOMYCES TOSAENSIS. THESE NEW AMYLASES PRODUCED BY THE ABOVE PARTICULAR SPECIES, RESPECTIVELY HAVE SOME ENZYMATIC ACTIVITIES AND CHARACTERISTICS WHICH ARE MUCH MORE USEFUL AND ADVANTAGEOUS IN PRODUCING A HIGHER YEILD OF MALTOSE FROM STARCH AND AMYLOSE, AS COMPARED TO THE USE OF THE KNOWN AMYLASES. THE STARCH HYDROLYZATE WHICH IS OBTAINED BY REACTING THE NEW AMYLASE WITH STARCH IN AQUEOUS DISPERSION CONTAINS A PREDOMINANT PROTORTION OF MALTOSE AND IS USEFUL AS A NATURAL SWEETENING MATERIAL, FURTHER, THIS STARCH HYDROLYZATE MAINLY COMPOSED OF MALTOSE IS CONVERTED INTO A MIXTURE OF SUGAR ALCOHOLS MAINLY COMPOSED OF MALTITOL BY HYDROGENATING IN THE PRESENCE OF A NICKEL CATALYST.

    Antibiotics a204i and a204ii and method for production thereof
    8.
    发明授权
    Antibiotics a204i and a204ii and method for production thereof 失效
    抗生素A204I和A204II及其生产方法

    公开(公告)号：US3705238A

    公开(公告)日：1972-12-05

    申请号：US3705238D

    申请日：1970-09-14

    申请人： LILLY CO ELI

    发明人： HAMILL ROBERT L ,  HOEHN MARVIN M

    IPC分类号： C07H17/04 ,  A61K21/00

    CPC分类号： C07H17/04 ,  Y10S435/887

    摘要： ANTIBIOTICS A204I AND A204II ARE CO-PRODUCED BY CULTURING STREPTOMYCES ALBUS NRRL 3384 IN AN AQUEOUS, NUTRIENT CULTURE MEDIUM AND ARE ISOLATED AS ANTIBIOTIC A204 MIXTURE VIA ETHYL ACETATE EXTRACTION OF FILTERED BROTH AND MYCELIUM FOLLOWED BY PURIFICATION OVER ACTIVATED CARBON. CHROMATOGRAPHY OF A204 MIXTURE AFFORDS SEPARATION OF A204I AND A204II AS INDIVIDUAL ANTIBIOTICS HAVING ANTICOCCIDIAL, INSECTICIDAL, ANTI-PPLO AS WELL AS ANTIMICROBIAL ACTIVITY.