Emulsifying Potency of New Amino Acid-Type Surfactant (1). O/W Emulsions
スポンサーリンク
概要
- 論文の詳細を見る
Oil-in-water (O/W) emulsions were prepared using a new amino acid-type emulsifier (surfactant), N-[3-lauryloxy-2-hydroxypropyl]-L-arginine L-glutamate (C12HEA-Glu), and the emulsifying potency of C12HEA-Glu was examined in terms of dispersibility, droplet size, interfacial tension, viscosity and hydrophilic microenvironment of droplet surface, whose emulsifying potency was compared with that of general amphoteric and nonionic surfactants. The effects of the constituent oils on the stability of emulsions were also examined. The emulsifying potency of C12HEA-Glu was greater than that of amphoteric N-lauryl-N, N-dimethyl-α-betaine and nonionic polyoxyethylene(10) laurylether, especially, the stability of emulsions containing oleic acid (OA), (C12HEA-Glu/OA/water system), was greatest, while the stability of emulsions containing octane (OC), (C12HEA-Glu/OC/water system), was inferior. OA possesses a hydrophilic carboxyl group and the viscosity of OA is higher than that of OC. The higher visco-elasticity of OA droplet surface and the formation of hydration layer on the droplet contributed to the greater stability of OA emulsions, thereby raising the stability of emulsions for the system C12HEA-Glu/OA/water in spite of the small | zeta-potential | (insufficiently electrostatic repulsion) of droplets.
- 日本油化学会の論文
- 2001-11-01
著者
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Abe Masahiko
Fac. Of Sci. And Technol. Tokyo Univ. Of Sci.
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Abe Masahiko
東京理科大学 理工学部
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YOKOYAMA Shoko
Kyoritsu College of Pharmacy
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Abe Masahiko
Faculty Of Science And Technology Tokyo University Of Science
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SAKAI Hideki
Institute of Colloid and Interface Science, Science University of Tokyo
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HARUSAWA Fuminori
Faculty of Science and Technology, Tokyo University of Science
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酒井 秀樹
東京理科大学
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YAMAGUCHI Aritomo
Faculty of Science and Technology, Science University of Tokyo
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ABE Masahiko
Institute of Colloid and Interface Science
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KOUCHI Junichi
Faculty of Science and Technology, Science University of Tokyo
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TABOHASHI Tatsuru
Ajinomoto Co., Inc., Amino Science Laboratories
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Yamaguchi A
Department Of Pure And Applied Chemistry Faculty Of Science And Technology Tokyo University Of Scien
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Tabohashi Tatsuru
Ajinomoto Co. Inc. Amino Science Laboratories
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Harusawa Fuminori
Faculty Of Science And Technology Tokyo University Of Science
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Yamaguchi Aritomo
Faculty Of Science And Technology Tokyo University Of Science
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Kouchi Junichi
Faculty Of Science And Technology Science University Of Tokyo
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Yokoyama S
Kyoritsu College Of Pharmacy
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Yokoyama S
Kyushu Univ. Health And Welfare Miyazaki Jpn
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Yamaguchi Aritomo
Department Of Pure And Applied Chemistry Faculty Of Science And Technology Tokyo University Of Scien
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Abe M
Faculty Of Science And Technology Science University Of Tokyo
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