Abstract:
:At the Netherlands Vaccine Institute (NVI) a vaccine against Neisseria meningitidis serogroup B organisms based on different porA subtypes contained in outer membrane vesicles (OMVs) is in advanced stage of development and will be evaluated in clinical trial studies in the near future. In order to meet the expected demand for product, the current biopharmaceutical production process is being scaled-up. This study describes the scale-up approach for the upstream process and the resulting bioreactor design and operation strategy leading towards a feasible solution for bulk production of a vaccine against meningococcal disease. The technically realized 1.2 m(3) bioreactor, equipped with a turbine impeller for gas dispersion, was complemented with an upward pumping impeller and a rotary plate foam breaker to contain foam inside the bioreactor. Aeration and ventilation in the culture broth were controlled by increasing the stirrer speed and gas flow rate simultaneously at increasing oxygen demand. The scale-up was successful and comparable growth curves and nutrient consumption profiles were reached on 0.06 and 1.2 m(3).
journal_name
Vaccinejournal_title
Vaccineauthors
Baart GJ,de Jong G,Philippi M,van't Riet K,van der Pol LA,Beuvery EC,Tramper J,Martens DEdoi
10.1016/j.vaccine.2007.06.008subject
Has Abstractpub_date
2007-08-21 00:00:00pages
6399-408issue
34eissn
0264-410Xissn
1873-2518pii
S0264-410X(07)00680-9journal_volume
25pub_type
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