Process for the preparation of maltopentaose
    1.
    发明授权
    Process for the preparation of maltopentaose 失效
    麦芽五糖的制备方法

    公开(公告)号:US4591561A

    公开(公告)日:1986-05-27

    申请号:US527181

    申请日:1983-08-26

    摘要: A process for the preparation of maltopentaose is disclosed, comprising cultivating a maltopentaose-producing microorganism belonging to a genus Bacillus in a medium and isolating the thus-accumulated maltopentaose from the culture broth. A typical example of the maltopentaose-producing microorganism is Bacillus cereus NY-14. This process permits the preparation of maltopentoase without the use of amylase as in conventional methods. Maltopentaose is useful, for example, as a substrate for the determination of serum amylase.

    摘要翻译: 公开了一种制备麦芽五糖的方法,包括在培养基中培养属于芽孢杆菌属的麦芽五糖产生微生物,并从培养液中分离出所累积的麦芽五糖。 麦芽五糖产生微生物的典型实例是蜡状芽孢杆菌NY-14。 该方法允许在常规方法中不使用淀粉酶来制备麦芽戊糖酶。 麦芽五糖可用作例如用于测定血清淀粉酶的底物。

    Microscope with automatic sweeping device
    3.
    发明授权
    Microscope with automatic sweeping device 失效
    显微镜带自动清扫装置

    公开(公告)号:US4824229A

    公开(公告)日:1989-04-25

    申请号:US141308

    申请日:1987-12-07

    摘要: A microscope with an automatic sweeping device which automatically sweeps a preparation, membrane filter, etc. for observing subjects, such as cells, microbes or others, existing thereon, is offered. The automatic sweeping device has the following functions: a control mechanism drives a transfer mechanism for moving a holder containing subjects according to the instructions from a control console to perform automatic sweeping by stepped or continuous movement of the holder, and at the base time a printer, memory and display are so controlled that they respectively print, store and display position and other various data. Manual operation is also possible immediately after suspension of automatic operation. Positions of subjects detected by a position detector are stored in the memory. Whenever automatic operation is restarted, the holder returns to the position where the suspension occurred, to resume sweeping operation and moves directly to a particular memorized position when a memory number is keyed in from the control console, and to a position at particular coordinates when coordinates of a position other than the memorized position are inputted from the control console.