FocusHerb

Gardenia blue is a kind of natural blue pigment extracted from the fruit of Gardenia jasminoides in the family of Rubiaceae, which has unique chemical properties and wide application value. As the food natural pigment approved to be used by GB2760-2011 Hygienic Standard for the Use of Food Additives in our country, Gardenia blue  is highly favoured in the field of food, medicine and cosmetic with its natural source and safety. Basic properties and production process  Physicochemical properties: Colour range: from sky blue to sea blue (hue can be adjusted by process)  Solubility: easily soluble in water, aqueous ethanol and aqueous propylene glycol  pH stability: stable hue in the range of pH4-8, excellent acid-resistance (still remain stable under the condition of pH2.5)  Thermal stability: no fading by heating at 120℃ for 60 minutes  Sensitivity: meet Fe²⁺ or Sn² ⁺ ions are easy to produce colour change  Main components: Containing carotenoids such as...