白色パンジー花抽出液は赤紫色ハナショウブ花抽出液を青色化する

概要

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In order to obtain more information about the bluing effect of co-pigments on anthocyanins, we studied combinations which brought about the color changes in various red to red-purple flower petals. Extracts of these petals, which contain typical anthocyanins such as pelargonin, cyanin, peonin, delphin, petunin, and malvin, were mixed with extracts from various white flower petals. As a result, a bluing effect was observed when the extract of red purple Iris ensata Thunb was mixed with an extract from a white pansy. The extract of white pansy was fractionated by polyamide C-100 chromatography and almost all of the bluing activity was eluted by 0.3N〜1.1N hydrochrolic acid. This fraction shifted the maximum absorption spectrum of the extract of red-purple Iris ensata Thunb (λ max=533nm) to 561 nm and 630 nm just after the mixing, and to 581 nm and 630 after a one day incubation.
恵泉女学園園芸短期大学の論文