Microbiological Degradation of Surface Active Agents

Surfactants - Surface Active Agents

The definition for a detergent is a cleaning agent. The main cleaning agent used in earlier days was soap. This term means a compound formed from the reaction of a fatty acid with a base such as caustic soda, forming the sodium soap of the acid. The more commonly used cleaning agent in this day and age is the synthetic detergent (SYNDET) which is a formulation such as TIDE or FAB. The essential...

Silicone Surface-Active Agents

The Microbiological Degradation of Steroids

Belin, P. (1926). Bull. Soc. Chim. biol., Paris, 8, 1081. Bernheim, F. (1942). J. Bact. 44, 533. Birkinshaw, J. H. & Raistrick, H. (1931). Philos. Tras. B, 220, 11. Bloor, W. R. (1929). J. biol. Chem. 82, 273. den Dooren de Jongh, L. E. (1926). Ned. Tijdschr. Hyg. 1, 136. Fink, H., Haehn, H. & Hoerburger, W. (1937). Cher. Ztg, 61, 689, 723, 744.. Fiske, C. H. & Subbarow, Y. (1925). J. biol.' Ch...

The Microbiological Degradation of Sterbids

Recent work on bacterial oxidation of substances in the steroid group has demonstrated the possibility of converting certain hydroxy-steroids into the corresponding keto-derivatives by microbiological means. Thus, by the use of a 'bacterial rmiixture' cultured on Milan yeast, Mamoli (1938) obtained androstenedione from tran8-dehydroandrosterone, and progesterone from pregnenolone; with choleste...

Surface active agents as tumor promoters.

*TUC Centenary Institute of Occupational Health London School of Hygiene and Tropical Medicine, Keppel St., London WC1E-7HT, England. the types of promoter listed have not been demonstrated as such by animal experiments, but if a substance is a carcinogenic but not mutagenic, then it is most probably a tumor promoter. This assumes that mutagens are initiators and that promoters can induce cance...