An automated nephelometric system for evaluation of the growth of bacterial cultures
Abstract
An automated system comprising sixteen similar, independently controlled bioreactors is described. The operating parameters that can be varied in each bioreactor include pH, aeration, agitation and inlet and outlet liquid flow rates. Automatic turbidity measurements in each bioreactor are possible by employment of a nephelometer mounted on a track such that it aligns with the side arm of each bioreactor. Measurements are plotted automatically on either a linear or a semilogarithmic basis with respect to time. The response of the nephelometer is linear with respect to bacterial concentration throughout its operating range. Results that demonstrate the suitability of the system for studying bacterial oxidation processes where substrate concentrations are very low and where substrate affinity is important are presented.
- Publication:
-
Analytica Chimica Acta
- Pub Date:
- 1984
- DOI:
- 10.1016/S0003-2670(00)81496-8
- Bibcode:
- 1984AcAC..163...85M