Pathogenic E coli have adhesive properties which are mirrored by an increase in their surface hydrophobicity. E coli isolated from patients with ulcerative colitis possess a mannose resistant adhesin similar to that found in pathogenic E coli. In this study 42 E coli isolates from patients with colitis have been compared with 15 from controls to assess hydrophobicity and cellular adherence. The...

By employing (1)H NMR spectroscopy and molecular simulations, we provide an explanation for recent observations that the aqueous solubilities of ionic liquids exhibit salting-out to salting-in regimes upon addition of distinct inorganic salt ions. Using a typical ionic liquid [1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide], we observed the existence of preferential specific inte...

Hydrocarbons are sparingly soluble in aqueous solvents and to a first approximation their solubility can be described by the traditional Henry’s Law, which linearly relates the mole fraction in water to gas-phase partial pressure. The presence of amines in the aqueous phase increases hydrocarbon solubility over that in water, an effect referred to as “salting-in”. Commercial amine treating solu...

The aqueous solubility of hexafluorobenzene has been determined, at 298.15K, using a shake-flask method with a spectrophotometric quantification technique. Furthermore, the solubility of hexafluorobenzene in saline aqueous solutions, at distinct salt concentrations, has been measured. Both salting-in and salting-out effects were observed and found to be dependent on the nature of the cationic/a...

In southern China, about 20 different fish, such as red snapper, threadfin, Spanish mackerel, croaker, Japanese mackerel, are used to prepare salted fish (Armstrong & Eng, 1983; Poirier et al., 1987). Procedures for preparation of salted fish have been described in detail previously (IARC, 1993). Briefly, salted fish are prepared by salting, brining, dry-salting, pickle curing, or a combination...

Lonza is a traditional Italian meat product made from whole pork muscles, which is typically cured by dry salting. In this work, we study the effects of vacuum brine impregnation (VBI) as an alternative salting method on the survival of Enterobacteriaceae, in presence and in absence of nitrites. In comparison with the traditional brining process, VBI contributed to reducing the Enterobacteriace...

DNA from archival Papanicolaou stained and unstained cytological smears was successfully isolated using a simple, rapid and inexpensive salting-out procedure. The quality of DNA was controlled by polymerase chain reaction (PCR) amplification of segments of the human beta-globin, human beta-actin and human papillomavirus L1 genes. Only negligible differences in amplification efficiency were obse...

Endemic countries are increasingly adopting molecular tools for efficient typing, identification and surveillance against malaria parasites and vector mosquitoes, as an integral part of their control programs. For sustainable establishment of these accurate approaches in operations research to strengthen malaria control and elimination efforts, simple and affordable methods, with parsimonious r...

Activity coefficients for each of the components, urea and sodium sulfate, in their ternary mixtures with water have been obtained using the isopiestic vapor pressure method over the concentration ranges 0 to 19.4 molal urea and 0 to 2.4 molal Na2S04. At the lower molalities of the solutes, there is mutual salting-in of the components which changes to salting-out at 0.4 molal Na2SQ4 and 5 molal...