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BE1 Batch Enzyme Reactor

Model：BE1

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    Description

    The Batch Enzyme Reactor (BE1) introduces the student to thefundamentals of batch enzyme catalysis. It consists of a benchtop

    unit onto which is mounted a reactor vessel in which the glucose isomerase-mediated reaction takes place. The reactor itself is made
    of clear acrylic, which gives good visibility. A cruciform geometry impeller constructed from stainless steel mesh retains the immobilised
    enzyme while enabling efcient mixing with the liquid reactant (glucose solution).
    The impeller is a variable-speed type and the reaction temperature is maintained using two heaters and a temperature sensor mounted
    within the reactor. These are linked to a PID controller, which is programmed to maintain the desired setpoint temperature. Safety
    interlocks prevent the heaters being activated when there is a low reactor liquid level or when the impeller is inactive.
    A continuous sampling loop driven by a peristaltic pump removes liquid from the reactor and transfers it to a tubular coil heat exchanger,
    where it is cooled. It is then passed through a polarimeter where the angle of rotation of polarised light is measured. From this angle
    measurement, the concentration of both glucose reactant and fructose product can be determined. This eliminates the need for manual
    glucose assays. The measurement system relies on the fact that both glucose and fructose solutions rotate beams of polarised light, glucose
    to the right and fructose to the left. The polarimetry measurement method enables the progress of the reaction to be monitored online.
    The polarimeter assembly consists of an elongated optical flow cell mounted between two polarising lenses, one of which is fxed
    (polariser) and the other being free to rotate (analyser). On the outside of the polariser is a light source and on the outside of the analyser is a
    detector, which detects the intensity of emitted light that has passed through both polarising lenses and the sample tube.
    Attached to the analyser is an angle-measurement device. Both the optical transmission and the angle of rotation are relayed to electronic

    displays on the control console.


    Overall dimensions
    ength 1.10m
    Width 0.50m
    Height 0.45m
    acked and crated shipping specifcations
    olume 0.44m3
    Gross weight 36Kg



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        Armfield,BE1,Batch Enzyme Reactor

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