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China Gardenia Yellow Extract - Premium Color Supplier & Factory for Natural Dyes and Pigments
applications
Gardenia yellow color is extracted from gardenia, its composition is saffronin of carotenoids. Gardenia yellow color is an orange-yellow crystalline powder with little effect on the pH value. It has the advantages of good salt resistance, reduction resistance, and microbial resistance. It's soluble in water and immediately dissolved into a transparent yellow liquid. Also soluble in ethanol and propylene glycol, and insoluble in grease.
pH & Color Stability
Gardenia yellow aqueous solution has good color stability under neutral and alkaline conditions and fades when acidic. Gardenia yellow color liquid is orange-yellow at pH 1~7 and bright yellow at pH 8~12.
Dyeing & Thermal Properties
It has good coloring power for hydrophilic foods, specifically on protein and starch dyeing. It can inhibit the oxidation of 80% linolenic acid, serving as an antioxidant. It features high heat resistance (residual rate above 85% at 80 °C for 120 minutes) and stable light irradiation in the visible range (400nm-700nm).
Gardenia yellow color has excellent dyeing ability for protein, starch, etc., and can be widely used in the following food applications:
Frequently Asked Questions
Q: What is the source and composition of Gardenia Yellow color?
Gardenia yellow color is naturally extracted from gardenia plants, and its main chemical composition is saffronin of carotenoids.
Q: What are the solubility characteristics of Gardenia Yellow?
Gardenia yellow color is highly soluble in water, dissolving instantly into a transparent yellow liquid. It is also soluble in ethanol and propylene glycol, but completely insoluble in grease.
Q: How does pH level affect the stability and appearance of Gardenia Yellow?
It shows excellent color stability in neutral and alkaline conditions but fades under acidic circumstances. Specifically, the liquid presents an orange-yellow hue at pH 1 to 7 and a bright yellow shade at pH 8 to 12.
Q: Can Gardenia Yellow be used as an antioxidant?
Yes, Gardenia yellow color can inhibit the oxidation of up to 80% of linolenic acid, making it highly suitable as an antioxidant agent in food processing.
Q: What is the thermal and light stability of Gardenia Yellow?
It exhibits robust heat resistance with a pigment residual rate above 85% at 80 °C for 120 minutes. Additionally, it remains highly stable under light irradiation in the visible range (400nm-700nm).
Q: Which food products can be colored using Gardenia Yellow?
Due to its superior dyeing ability for proteins and starches, it is widely used in juice-based and alcoholic beverages, pastries, popsicles, ice cream, puffed foods, jellies, dough cakes, candies, and canned chestnuts.