Читать книгу Food Chemistry. The Role of Additives, Preservatives and Adulteration онлайн

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Coloring agents are added into the food to make it attractive and to influence the flavor. The other reasons for the addition of food color are as follows:

 a. Color may be lost during processing and storage, so to compensate it, food color is used.

 b. Food material containing natural color may show variation of color food color is added to correct that variation.

 c. Food color is added to improve the color imparted by the natural color.

 d. Food color is used for the food items having no color.

As per FDA regulation, the colors added may be with or without certification. The certified colors are man-made color. They are more effective than the natural color. They do not introduce any off flavor in the food. The natural colors are exempted from certification but they are more expensive and can produce off flavor. Color additives used may be of three types.

 a. Pure pigment or straight color.

 b. Colors obtained by mixing the straight colors with other substances.