The bioemulsifier V2-7 is an exopolysaccharide (EPS) synthesized by strain F2-7 of Halomonas eurihalina and it has the property of emulsifying a wide range of hydrocarbons i.e. n-tetradecane, n-hexadecane, n-octane, xylene mineral light and heavy oils, petrol and crude oil. Characteristics of exopolysaccharide V2-7 produced in media supplemented with various hydrocarbons (n-tetradecane, n-hexad...

A series of catechol derivatives with a different number of linear alkyl chain substituents, and different length, have been shown to polymerize in the presence of aqueous ammonia and air, yielding hydrophobic coatings that present the ability to provide robust and efficient water repellency on weaved textiles, including hydrophilic cotton. The polymerization strategy presented exemplifies an a...

Solid-phase microextraction (SPME) is a versatile new technique for collecting headspace volatiles prior to GC analysis. The commercial availability of uniform SPME fibers makes routine, practical quantitation of headspace concentrations possible, but straightforward information for relating GC peak areas from SPME analyses to headspace concentrations has not been available. The calibration fac...

The effect of different fatty acids on cytochrome P4504A1 mRNA levels was studied in primary cultures of rat hepatocytes, using a solution hybridization assay. All fatty acids tested induced P4504A1 mRNA levels in a dose- and time-dependent manner. Most potent were docosahexaenoic acid (22:6) and arachidonic acid (20:4), both of which gave a 6-fold increase in mRNA levels at 300 microM, followe...

HS-SPME-GC–MS analysis of the scent Dactylorhiza viridis revealed presence verbenone (28.86%), caryophyllene (25.67%), β-terpineol (9.48%), and δ-cadinene (6.94%). In romana β-ocimene (18.69%), pentadecane (18.40%), α-farnesene (14.65%), isopropyl 14-methylpentadecanoate (14.32%) were found. incarnata contained tetradecane (11.07%), (28.40%), hexadecane (19.53%), heptadecane (17.33%), α-cubenen...

In this Letter, the merging vs bouncing response of obliquely oriented colliding jets under elevated and reduced gaseous environment pressures was experimentally examined. Experiments with water n-tetradecane confirmed that collision outcome transitions from to then again, when impact velocity increased. This behavior which previously reported for atmospheric pressure has now also been observed...

To utilize a super-hydrophobic tetradecane-adsorbed marshmallow-like gel as phase-change material (PCM) carrier for latent heat transportation by mixing the particles with sodium carboxymethyl cellulose (CMC) solution, dispersion characteristics and flow of slurry were investigated. investigate slurry, visual observation under static conditions was performed while varying concentration CMC, app...