Interfacial and micellar behavior of glucose lipid |
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Authors: | Yutaka Ishigami Yasuo Gama Yoh Sano Siegmund Lang Fritz Wagner |
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Affiliation: | (1) Natl. Inst. of Materials and Chem. Res., 1-1, Higashi, Tsukuba, 305 Ibaraki, Japan;(2) Natl. Food Res. Inst., 2-1-2, Kannondai, Tsukuba, 305 Ibaraki, Japan;(3) Inst. of Biochem. and Biotechnol., Technical University of Braunschweig, Spielmann Str. 7, D-38106 Braunschweig, Germany |
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Abstract: | Summary Glucose lipid of notable surfactant properties was produced by using hydrocarbon assimilating bacterium of the bacterial strain MM1. Its surface active properties were notable in spite of , -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 micelle has the outer radius. 28.5 Å and inner core, 6.7 Å on the basis of the concentric spherical shell model by means of the small angle X-ray solution scattering measurement.Dedicated to Professor Fritz Wagner on the occasion of his 65th birthday. |
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