Ultrasonics
Mostrando 25-26 de 26 artigos, teses e dissertações.
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25. Effect of Ultrasonic Waves on the Heat Resistance of Bacillus cereus and Bacillus licheniformis Spores
Heat resistance of Bacillus cereus and Bacillus licheniformis spores in quarter-strength Ringer solution decreases markedly after ultrasonic treatments which are unable to kill a significant proportion of the spore population. This effect does not seem to be caused by a loss of Ca2+ or dipicolinic acid. The use of ultrasonics to eliminate vegetative cells or
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26. Physicochemical and Biological Properties of Fibrous Pseudomonas Bacteriophages
Two fibrous Pseudomonas phages, Pf1 and Pf2, have been isolated and characterized. The phages were serologically related and were indistinguishable morphologically when viewed by electron microscopy. Both phages formed minute turbid plaques. A simple method was devised for easy differentiation of such plaques from the bacterial lawn. The infected bacteria co