The Germicidal Effect of Staining Solutions |
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Abstract: | Gentian violet, crystal violet and carbol fuchsin applied to cover slip preparations for one minute will destroy the majority of non-spore-forming bacteria and yeasts, tho they can not be relied upon to do this consistently and in all cases.The Gram staining procedure is more effective and non-spore-formers were never found to survive this process.Methylene blue stains exert very little if any germicidal power and most organisms survived them readily. India ink was totally ineffective.Several species of yeasts and yeast-like molds were killed in every instance by the Gram stain, gentian violet, crystal violet and carbol fuchsin, but survived both Loeffler's methylene blue and a plain aqueous solution of methylene blue. |
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