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MICROBIOLOGICAL INVESTIGATIONS. PART 1
Technical documentary rept. Jul 1962-1 Jul 1963
DAYTON UNIV OH RESEARCH INST
Pagination or Media Count:
The effect of sodium dichromate, Mil-I-27686B Anti-icing additive mixture of ethylene glycol monomethyl ether and glycerine, and 52 different fuel additives have been examined for their ability to inhibit microbial growth in jet fuels. With the exception of six of the 52 additives tested, all of these agents demonstrated some degree of inhibitory activity against vegetative growth of the test organisms selected for the various studies. As a result of initial evaluation, 12 of the above 52 materials look promising and are being further evaluated. Bateria capable of forming spores appeared to be resistant to the effects of the sodium dichromate and the anti-icing additive. However, the data suggest that these organisms survive rather than grow and multiply in the test environment. The maintenance of stock cultures of microorganisms isolated from jet fuels in various laboratories involved in the jet fuels project has been undertaken. To date 35 bacterial strains, 9 fungi, and 1 yeast are included in the stocks. A simulated fuel tank has been designed and set up for long-term observation leading to data on the ecology of a representative mixed microbial flora in a fuel tank.
APPROVED FOR PUBLIC RELEASE