To provide an emulsion composition that is made from natural components, has an excellent emulsifying function, and also has an additional function.SOLUTION: An emulsion composition is composed of a compound in which at least one hydroxy group constituting a flavonoid glycoside is alkyl-esterified.SELECTED DRAWING: Figure 1【課題】天然成分由来で、優れた乳化機能を有し、さらに付加機能も有する乳化組成物を提供する。【解決手段】乳化組成物は、フラボノイド配糖体を構成する少なくとも1つの水酸基が、アルキルエステル化した化合物から構成される。【選択図】 図1