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    • 4. 发明授权
    • Starch conversion
    • 淀粉转化
    • US4957563A
    • 1990-09-18
    • US132426
    • 1987-12-14
    • T. L. GallaherThomas L. Small
    • T. L. GallaherThomas L. Small
    • C08B30/12C08B30/16C12M1/40C12P19/14
    • C08B30/16C08B30/12C12P19/14
    • A process for continuously converting starch to paste by heating an aqueous starch slurry with an enzyme to an elevated temperature and holding the mixture at an elevated temperature for a time to gelatinize the starch granules and produce a starch paste of desired viscosity. Then, the starch-enzyme stream is further heated and held at an elevated temperature and for a time sufficient to inactivate the enzyme and after which a starch paste having a desired and substantially stable viscosity is recovered.Preferred apparatus of the invention includes a single, compact, continuous processing unit which minimizes the required equipment and includes a starch conversion conduit adapted for conveying an admixed stream of an aqueous starch slurry and a liquid stream containing an enzyme. Inlet lines for introducing an aqueous starch slurry and a liquid stream containing an enzyme capable of depolymerizing starch into said starch conversion conduit are provided. An enzyme inactivating conduit communicates with the said starch conversion conduit for inactivation of the enzyme. Means for heating the liquid streams within the starch conversion conduit and the enzyme inactivating conduit are provided and pump means serve to pump the stream through said starch conversion conduit and said liquid inactivating conduit at a controlled rate. Receptacle means for receiving the discharge from the enzyme inactivating conduit are provided. Pressure regulating means cna be utilized to maintain a desired pressure within the enzyme inactivating conduit. Inlet means for passing flush water through the system can also be provided.
    • 一种通过将酶的水性淀粉浆料加热到高温并将混合物在高温下保持一段时间使淀粉颗粒糊化并产生所需粘度的淀粉糊而将淀粉连续转化成糊料的方法。 然后,将淀粉 - 酶流进一步加热并保持在升高的温度下并持续足以灭活酶的时间,此后回收具有所需和基本上稳定的粘度的淀粉糊。 本发明的优选装置包括单个紧凑的连续处理单元,其使所需设备最小化,并且包括适于输送水性淀粉浆料和含有酶的液体流的混合物流的淀粉转化管道。 提供了用于将水性淀粉浆料和含有能够将淀粉解聚的酶的液体流引入所述淀粉转化管道的入口管线。 酶灭活导管与所述淀粉转化管道连通以使酶失活。 提供了用于加热淀粉转化管道和酶灭活导管内的液体流的装置,并且泵装置用于以受控的速率将流体泵送通过所述淀粉转化管道和所述液体灭活导管。 提供了用于接收来自酶灭活导管的放电的插座装置。 压力调节装置可用于在酶灭活导管内保持所需的压力。 还可以提供用于将冲洗水通过系统的入口装置。