O/W/O型及びW/O/W型各多相エマルションの生成条件の比較

概要

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Preparation of O/W/O-type multiple emulsions was examined by applying conditions previously used for obtaining W/O/W emulsions. Main aim of the study is to confirm whether two different types of multiple emulsions would be formed around the phase inversion region of a ternary system of oil, water and emulsifier. The used samples were comprised of different combinations of components, such as liquid paraffin systems emulsified with Span 80 and Tween 80 and an olive oil system stabilized by TGCR (tetraglyceryl condensed ricinolate). The results for the liquid paraffin system indicated about twice or less Span 80 than Tween 80 to be necessary for obtaining 70% or higher yields of O/W/O emulsions, in contrast to W/O/W emulsions. O/W/O-type dispersion in the olive oil system occurred prior to phase inversion of the W/O emulsion, leading to formation of W/O/W emulsions. The two different types of multiple emulsions both containing the same components, thus to actually be formed about the phase inversion region of the ternary system.
社団法人日本油化学会の論文