User:WenlongHuang/sandbox

Food Coloring

Since the color of food is one of the most significant factors, people always put some food additives into the food they made, which named———Food Coloring. Natural food coloring and synthetic food coloring are different types of food coloring. Natural food coloring is always extracted from animals, plants and mineral. It is widely used in food and medicine. However, the synthetic food coloring is generally bad for health of people, it will promote cancer and poisoning for people, so it is hardly ever used in the food. Natural food coloring is the healthiest pigments that people widely used in the food, because people directly abstract pigments from plants and animals, such as the carotene, curcumin and chlorophyll. But like carminum and limocitrin, it’s very bad for people. Natural food coloring can get the similar natural color from the natural plants or animals; nevertheless, it will cost more expensive, is easily to changed by temperature, illumination, water quality, oxidation, and it has the short quality guarantee period. On the other hand, synthetic food coloring is not only widely used in the food industry, but also proverbially used in the cosmetics industry; the main raw material of synthetic food coloring is chemical product, even though compared to natural food coloring, the color is more vivid, it’s hard to fade, and the cost is low, every country still strictly limits the dosage and range of it, because it is harmful to human body health. There are several different ways to extract food coloring from plats, according to the different application and dosage form, the extraction of natural food coloring has solvent extraction method, boiling method, squeeze, enzymatic reaction extraction and supercritical extraction. Solvent extraction method is the most common way that people always extract the food coloring from the solvent with higher pigment compositional solubility, and with lower solubility of impurity. Food coloring really has the vast future development, special the natural food coloring; since people know well the ways of extraction of natural food coloring from plants and animals, it is widely being used in the food and other areas, as the food coloring’s development of versatility, people gradually cannot leave it anymore, many of it can help people to prevent some diseases, and offer the most healthy food for human beings. People are still exploring the application of food coloring for us, and they will take advantages of its benefits to satisfy people’s life, and let the food coloring makes the life of human beings better and better.