| 摘要 |
PURPOSE:To produce the subject pigment resistive to sedimentation, reduced in reddish tinges, excellent in safety and clearness and suitable for coloration of a beverage, etc., by applying a treatment in the presence of a polyphenol compound and in the coexistence of a specified aglucone and a taurinecontaining substance under an aerobic condition. CONSTITUTION:This pigment is produced by applying an enzymatic treatment with 4-glycosidase, etc., in the presence of preferably 100mug to 1mg (based on 1g pigment) polyphenol compound and in the coexistence of aglucone which is an iridoid glycoside contained in a Gardenia Rubiales and a taurine-containing substance under an aerobic condition to obtain a blue pigment or by adding a polyphenol compound to the obtained blue pigment. |
