In the present era of pursuing natural and healthy foods, various natural pigments have gradually become a popular choice in the food industry. Among them, radish red, as a natural food colorant, with its distinctive color and natural properties, has gained a foothold in the market of red natural pigments.

In recent years, both domestic and foreign markets embrace the concept of natural and healthy food, which offers a broad space for the development of the natural pigment industry. With the continuous innovation of research and development and the maturity of production, extraction, and separation techniques, it provides technical support for the promotion and application of natural pigments and meets the increasingly diverse demands of the market.

Radish red (CNS: 08.117; INS: 163i) is a food additive extracted and refined from red radish (Raphanus sativus L.). It is soluble in water and ethanol aqueous solution but insoluble in non-polar solvents. The color of the solution varies with the pH of the medium ranging from 2.0 to 8.0: orange-red to pink-violet. It is stable under acidic conditions and has a maximum absorption peak within the wavelength range of 514nm ± 5nm. The product quality standard "National Food Safety Standard for Food Additive Radish Red" (GB 25536-2010) specifies the sensory and physical and chemical indicators, for specific reference, see the following:

The market value of radish red pigment is not only reflected in its wide application fields but also in its unique advantages. Compared with traditional synthetic pigments, radish red pigment is safer. Its specific application industry categories and usage are referred to the relevant provisions in the "GB2760 National Food Safety Standard for Food Additives Use". According to the using amount and pH value, radish red can present different color tones, which makes radish red pigment more competitive in the market. In the food industry, radish red pigment is widely used in various food industries. Its natural red color makes it a leader among red natural pigments. For instance, in frozen drinks (food classification number: 03.0), confectionery (food classification number: 05.02), fruit and vegetable juice (pulp) drinks (food classification number: 14.02.03), pastries (food classification number: 07.02), and other food categories, radish red pigment can not only give food an attractive color but also enhance the appearance level of products and consumers' sensory experience.

Not only that, the application of radish red natural pigment in food production goes far beyond this. In jam (food classification number: 04.01.02.05), compound seasonings (food classification number: 12.10), prepared wine (food classification number: 15.02), and other food categories, radish red pigment also plays an important role in enhancing and preserving color, giving a natural color to products.

Radish red pigment, as a natural and safe food pigment, has played a significant role in the production of various food industries.

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