| 摘要 |
PURPOSE:To obtain a red dye excellent in color development, light resistance and colorability and useful for lowly odorous food and drink and cosmetics by extracting yeast of the genus Phaffia with a solvent and treating the extract by a combination of purifying treatments. CONSTITUTION:Yeast of the genus Phaffia is extracted with a solvent. An example of a starting yeast of the yeast of the genus Phaffia is a dried product of this yeast, and examples of the extractant used include hexane, acetone, ethanol, soybean oil, coconut oil and tallow. The extract is concentrated and purified by treating it by a combination of some of molecular distillation, wintering, column chromatography, steam distillation, treatment with a supercritical fluid, liquid-liquid distribution, saponification etc., to produce a dye. The obtained dye is a lowly odorous red dye excellent in color development, light resistance and colorability and is useful for food and drink or cosmetics. |
