Red yeast rice color, also known as black rice pigment or red rice color, is a food additive derived from red rice (Oryza sativa L.) through extraction and refinement processes. It is soluble in water and ethanol, but insoluble in acetone and petroleum ether. Red yeast rice color is sensitive to oxidizing agents, but unaffected by sodium, potassium, calcium, barium, zinc, copper, and trace amounts of iron ions. However, it turns rose-red when exposed to tin, and fades and precipitates in the presence of lead and high levels of Fe2+. It appears red at pH 1-6 and changes to light brown at pH 7-12. Under acidic conditions (pH 1-6), it appears red, while under alkaline conditions (pH 7-12), it changes to reddish-brown or yellow.
Characteristics:Purple-red to red powder, paste, or liquid
Application:
Red yeast rice color is a natural food additive that is safe, stable, and heat- and light-resistant. Its specific usage category and maximum usage level can be referred to the relevant provisions in the "GB2760--2014 National Food Safety Standard Food Additive Use Standard." In most product categories, it can be added as needed.
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