1. Provides natural green pigmentation: Offers a bright and stable green hue derived from gardenia fruit through biological fermentation, serving as a natural alternative to synthetic green colorants.
2. Exhibits antioxidant activity: Contains bioactive compounds such as genipin derivatives, which can scavenge free radicals and reduce oxidative stress, protecting cells from damage.
3. Shows good stability: Maintains its green shade in the pH range of 4-8, and has good heat resistance, being able to withstand heating at 120°C for a certain period without significant fading. However, it has relatively poor light resistance and may fade under long-term light exposure.
4. Has excellent water solubility: Easily disperses in water, ethanol aqueous solution, and propylene glycol solution, and is insoluble in non-polar organic solvents. It has a stronger dyeing ability to proteins than to starches.
