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Bioreactors offer a fully scalable, single-use system

4th May 2017

Posted By Paul Boughton


SSB’s new BIOSTAT STR 500L
Single-use Flexsafe STR bag

Sartorius Stedim Biotech (SSB) announced the launch of its next generation BIOSTAT STR, a fully scalable, single-use bioreactor family based on a conventional stirred-tank design.

This new bioreactor range featuring upgraded hardware and software, as well as a fully integrated, new design of Flexsafe STR single-use bags, ensures quick and easy bioprocess scale-up of biologics and vaccines.

The BIOSTAT STR bioreactors are equipped with an improved stainless steel bag holder for user-friendly installation of the single-use Flexsafe STR bag.

The bioreactor series consisting of five systems in different sizes offers working volumes from 12.5L to 2,000L.

Because the bioreactors are designed with the same geometries as SSB’s ambr 250 mini bioreactor, the industry gold standard for scale-down, linear scale-up and process transfer from 250mL to 2,000L can be achieved in weeks rather than months using this innovative technology platform.

The new bioreactors and the newly introduced single-use Flexsafe STR bags are a perfect match.

The bags with advanced single-use sensor solutions are manufactured from a proprietary, robust multilayer S80 polyethylene film.

The formulation of resins and additives for the film are fully characterised, and extrusion process parameters are controlled within established ranges, providing consistent batch-to-batch extractable and leachable profiles.

The fully self-contained design of the new bioreactor with its single-use bag prevents product cross-contamination, saving time in set-up, validation, clean-in-place procedures and sterilise-in-place operations.

Besides using bags of the highest purity, the system is designed for efficient oxygen transfer, mixing and CO2 stripping.

These combined features ensure excellent cell culture performance with reproducible high-density growth of even sensitive cell lines.

As a result, BIOSTAT STR bioreactors are ideal for achieving very high cell densities in continuous processes and for safe manufacture of vaccines and recombinant proteins in cGMP environments.

The new bioreactor range provides greater flexibility in bioprocess control and data acquisition as software connectivity has been upgraded to allow integrated control by either BioPAT MFCS software or commonly used third-party industrial distributed control systems (DCS), such as Emerson DeltaV or Siemens SIMATIC PCS7.






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