(upbeat cheerful music)
- [Narrator] Some of our
bioreactors in sizes up to
1,000 liters are single use
bioreactors called SUBs.
In these, the product
contact portion of the vessel
is a bag that lines a stainless
steel shell, shown here.
The bag includes the impeller of
a magnetically driven mixer.
All product contact surfaces
are discarded after each run,
eliminating the need for
cleaning and cleaning validation.
Additions to the bioreactor
are also in bags.
To pump one of these into the bioreactor,
the technician inserts its hose
into a peristaltic pump head.
In this type of pump,
the only wetted surface
is the polymer tubing, which
is discarded after the run.
From a process standpoint, a SUB works
the same way as a
stainless steel bioreactor.
These are run by our
distributed control system
using similar logic.
