Minifors 2 - Benchtop Bioreactor
Cultivation
Page
114
of
214
07 February 2019
9.4 Harvest
The culture can be harvested at the end of the cultivation. To pre-
vent possible sedimentation from the culture, the stirrer can be
switched on during harvesting. If necessary, activate gassing for
sensitive cultures. However, all other parameters should be
switched off, provided there are no other specifications for the
user.
The following possibilities exist for the harvest:
a) Transfer to another vessel
To transfer the contents of the vessel to another container in a
laminar flow cabinet.
b) Pump-down via a sterile hose connection
To do so, proceed as follows:
Procedure
1.
Make a sterile connection between the hose at the dip tube for
harvest and the new vessel.
2.
Connect the hose to one of the pumps on the equipment or to
an external pump.
3.
Pump the desired amount of culture into the new vessel.
INFORMATION
Only switch on the stirrer if it is fully covered by medium, as
foam otherwise forms.
4.
Switch off all parameters at the operating panel and stop the
Batch (process) at the operating panel.
INFORMATION
Always stop the running Batch (process) on the operating panel.
If it is stopped by pressing the main switch, it is akin to a power
interruption. This means that when it is switched on again, the
previous settings are adopted but control of the parameters re-
mains switched off.
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