China Gardenia Yellow Color Extract from Trusted Suppliers | High-Quality Factory Products
Applications
Extraction & Solubility
Gardenia yellow color is extracted from gardenia, with saffronin of carotenoids as its main composition. This orange-yellow crystalline powder has little effect on pH value. It features good salt, reduction, and microbial resistance. It is highly soluble in water (dissolving immediately into a transparent yellow liquid), ethanol, and propylene glycol, while remaining insoluble in grease.
pH Color Stability
Gardenia yellow aqueous solution exhibits excellent color stability under neutral and alkaline conditions, though it fades when acidic. The liquid exhibits an orange-yellow hue at pH 1~7 and turns to a bright yellow shade at pH 8~12.
Dyeing & Thermal Stability
It provides strong coloring power for hydrophilic foods, specifically in protein and starch dyeing. It demonstrates outstanding heat resistance, maintaining a pigment residual rate above 85% at 80 °C for 120 minutes. Additionally, it remains stable under light irradiation within the visible range (40LUN-700NLN) and can inhibit the oxidation of 80% linolenic acid, serving as an effective food processing antioxidant.
Food Industry Uses
Due to its superior dyeing ability for protein and starch, Gardenia yellow color is widely utilized in juice-based beverages, alcoholic beverages, pastries, popsicles, ice cream, puffed foods, jellies, dough cakes, candies, and canned chestnuts.
Frequently Asked Questions
What is the source and composition of Gardenia Yellow?
Gardenia yellow color is extracted from gardenia fruit, and its main composition consists of saffronin of carotenoids. It presents as an orange-yellow crystalline powder.
How soluble is Gardenia Yellow color?
It is highly soluble in water, dissolving instantly to form a transparent yellow liquid. It is also soluble in ethanol and propylene glycol, but completely insoluble in grease.
How does pH affect the stability and color of Gardenia Yellow?
Gardenia yellow color exhibits excellent stability under neutral and alkaline conditions, but it fades in acidic environments. The liquid appears orange-yellow at pH 1~7 and turns to a bright yellow at pH 8~12.
Can Gardenia Yellow withstand heat and light processing?
Yes, it has good heat resistance with a pigment residual rate of over 85% when heated at 80 °C for 120 minutes. It is also stable under light irradiation within the visible range (40LUN-700NLN).
Does Gardenia Yellow color provide any antioxidant benefits?
Yes, Gardenia yellow color can inhibit the oxidation of 80% linolenic acid, allowing it to function as both a colorant and an antioxidant in food processing.
What food products commonly use Gardenia Yellow?
It is widely used in juice-based beverages, alcoholic beverages, pastries, popsicles, ice cream, puffed foods, jellies, dough cakes, candies, and canned chestnuts due to its excellent dyeing ability for protein and starch.