Improved Filtration Technique for Concentrating and Harvesting Bacteria
Open Access
- 1 August 1980
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 40 (2) , 269-273
- https://doi.org/10.1128/aem.40.2.269-273.1980
Abstract
An improved technique is described for the filtrative concentration and harvesting of bacterial cultures. A pleated tangential flow filtration unit containing 1,000 cm2 of 0.2-μm-pore-size microporous membrane was used to rapidly (30 to 50 min) reduce the volume of 5 liters of bacterial culture of approximately 109 cells per ml to 0.2 to 0.5 liters of concentrated bacterial suspension. The effects of cell concentration, filtration pressure, and tangential flow rate were examined with respect to the rate of concentration and cell viability. Recovery efficiencies were between 60 and 75%, with no apparent impairment of organism viability. Cell concentration exerted the predominant effect on the filtration rate.This publication has 1 reference indexed in Scilit:
- Isolation of a mannose-specific lectin from Escherichia coli and its role in the adherence of the bacteria to epithelial cellsBiochemical and Biophysical Research Communications, 1978