Scientific Societies

1921 Journal of Industrial & Engineering Chemistry  
The data by Buchta are in absolute accord with our own. He found that the cells of Saccharomyces cerevisiae and Saccharomyces ludwigii could not withstand more than a 3-min. exposure to ultraviolet rays. Lastly in this connection, it came to our attention that one of our colleagues in studying a case of spoilage in a carbonated beverage, isolated two yeasts which would reproduce this spoilage. Exposure to ultraviolet light destroyed them both in less than 1 min. They are apparently
more » ... rently Saccharomycetes. Anyone who has had any experience whatever with ultraviolet rays, or who has studied the data of others, cannot help but be impressed that this form of energy is one of the most toxic known. Chamberlain and Vedder' found that amebae, whether motile or encysted, were quickly killed by ultraviolet rays. Fairhall and Bates2 state: The abiotic power of ultraviolet rays is not restricted to vegetative bacterial cells alone but extends to the spores, as well as to certain molds, such as Penicillium, Aspergillus, and Mucor. To maintain in the light of all the work done on various micro-1 Philififiine J , Sd., lS11, 2B, 383. *
doi:10.1021/ie50135a791 fatcat:kxsevb3n5ncldfu7ql5end5k5i