Stability of curcumin

The stability of curcumin is easily affected by various factors such as light, temperature, acidity and metal ions. Light and heat can cause it to oxidize and decompose, losing its ability to develop color.Under acidic or neutral conditions, curcumin has a low solubility and is prone to precipitation.

Preservatives have a great influence on curcumin, mainly in the maximum absorption peak and color tone. Sodium benzoate and sodium carbonate can increase the absorption peak of curcumin to a certain extent, and the color tone is deepened, which has a protective effect on its stability.

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