Interfacial and micellar behavior of glucose lipid

Abstract

Glucose lipid of notable surfactant properties was produced by using hydrocarbon assimilating bacterium of the bacterial strain MMI. Its surface active properties were notable in spite of cz,to-hydrophilic and bulky molecule. The critical micelle concentration (cmc) was small (0.165/./M) : surface and interfacial tension for hexadecane at 0.1% (pH 7.35) solution, 24.6 and 13.3 mN/m, respectively. The emulsifying action was excellent and comparable to those of rhamnolipids. The miceile has the outer radius. 28.5 ~, and inner cot'e, 6.7/~ on the basis of the concentric spherical shell model by means of the small angle X-ray solution scattering measurement.

Influence of anisotropy on the dynamic wetting and permeation of paper coatings

“…Both the test oil and hexadecane were fully wetting, in that no fluid contact angle was visible. On aged surfaces, which have adsorbed atmospheric aerosols, smoke or vapours including water, the contact angle of both fluids increases to around 40 • as published [33]. This behaviour on aged surfaces was taken to be that which was most representative of actual paper coatings.…”

“…It had a surface tension γ of 0.0246 N m −1 , a density ρ of 773.31 kg m −3 , and a viscosity η of 3.3 mPa s at 20 • C [32]. The contact angle θ was 40 • , estimated from comparing contact angles of similar mineral oils [33].…”

Processing vegetable oils using nonporous denser polymeric composite membranes

“…Therefore, the CMC values of mixed phospholipids in these crude oils would be much higher than the CMC value of PC and closer to the CMC value obtained with the crude soybean oil. From small-angle X-ray scattering (SAXS) analysis based on the spherical model (31), the size of the PC micelles was in the range of 3.56 to 4.70 nm (Table 6).…”

Characterization of phospholipid reverse micelles in relation to membrane processing of vegetable oils

“…The net scattering intensities were calculated by subtracting the scattering intensities of a blank buffer solution from those of the sample. The results were analysed based on the spherical model [7].…”