The apparent viscosity of viscous heavy oil emulsions in water can be less than that of the bulk oil. Microfluidic flooding experiments were conducted to evaluate how alkali-surfactant-foam enhanced oil recovery (ASF EOR) of heavy oil is affected by emulsion
Cercariae immobilisation and Schistosoma mansoni adult recovery tests in the mouse show that tensides can greatly reduce the infectivity of cercariae. In the case of two amphoteric products, Laurylbetain and Laurylamidopropylbetain, this action is obtained with very low (0.1-5 ppm)
Applied and environmental microbiology, 40(4), 701-705 (1980-10-01)
Polyethylene glycol (PEG) dehydrogenase in crude extracts of a PEG 20,000-utilizing mixed culture was purified 24 times by precipitation with ammonium sulfate, solubilization with laurylbetaine, and chromatography with diethylamino-ethyl-cellulose, hydroxylapatite, and Sephadex G-200. The purified enzyme was confirmed to be
The Journal of toxicological sciences, 44(6), 393-403 (2019-06-07)
To predict the results of a 24-hr closed human patch test, we previously recommended the use of in vitro test with a reconstructed human epidermis (RhE) model adopted in OECD TG 439, and proposed the margin method, which includes evaluation
Journal of applied microbiology, 93(2), 302-309 (2002-07-31)
In order to clarify the involvement of an energy-yielding system in the antibacterial action of surfactants, the effects of carbon source and anaerobiosis during the growth period on the surfactant sensitivity of Escherichia coli cells were investigated. Cetyltrimethylammonium bromide (CTAB)
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