Drag reduction by Acinetobacter calcoaceticus BD4
- 1 September 1987
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 53 (9) , 2269-2270
- https://doi.org/10.1128/aem.53.9.2269-2270.1987
Abstract
The encapsulated bacterium Acinetobacter calcoaceticus BD4 at a density of 3.6 X 10(9) cells per ml reduced the friction of turbulent water in a narrow pipe by 55%. This drag reduction was due to the tightly bound polysaccharide capsules (0.4 mg per ml) of culture. Capsule-deficient mutants of BD4 failed to reduce drag. The cell-bound polysaccharide demonstrated a threefold-higher drag-reducing activity than the polymer which was free in solution.This publication has 5 references indexed in Scilit:
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