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Any substance that can make a substance show the color required by the design is called a colorant, which can be organic or inorganic, natural or synthetic. Food coloring agents are substances that color foods, which can increase the appetite for food and stimulate appetite. CD Formulation provides customers with various excipient molecules. Our pharmacy or other professional researchers and experimenters are constantly developing new product solutions. We can custom colorant excipients for customers, and we can also provide customers provide solutions for drug development research.
Most of the natural food colorants are taken from plants, and some are taken from animals. Natural food colorants can be divided into 5 categories according to their chemical structure:
Natural edible colorants come from nature, have a wide variety, and most of them have no toxic side effects. Compared with synthetic colorants, they have outstanding characteristics. The characteristics of natural food colorants are:
Food synthetic colorant is an organic colorant prepared by artificial synthesis. The synthetic colorant has strong coloring power, bright color, not easy to fade, good stability, easy to dissolve, easy to color, low cost, but low safety.
According to the chemical structure, it can be divided into two categories: azo colorants and non-azo colorants.
Oil-soluble azo colorants are insoluble in water, and are not easily excreted when entering the human body. They are relatively toxic and are basically no longer used. Water-soluble azo colorants are easier to excrete from the body and have low toxicity. At present, a considerable part of synthetic colorants used in various countries in the world are water-soluble azo colorants. In addition, food synthetic colorants also include lakes and non-absorbable polymeric colorants under development. Lake is a special colorant prepared by precipitating a water-soluble colorant on an insoluble substrate that is allowed to be used, that is, a colorant product that is insoluble in water under the same conditions.
Fig. 1 Schematic Diagram of Natural and Synthetic Colorants
CD Formulation is a leading manufacturer of excipients, serving the pharmaceutical industry to help it improve the performance of its products. We develop, produce and sell pharmaceutical excipients for solid, semi-solid and liquid dosage forms. If you have any requirements for excipients, please contact us by phone or email, and our colleagues will reply to you within 2-4 working days.