Advantages and disadvantages of natural colorants

Introduction: natural colorant has its own advantages and disadvantages The following safety net introduces the advantages and disadvantages of natural colorant In fact, each kind of food additive has its own disadvantages and advantages Natural colorants are the same Here are the advantages and disadvantages of natural colorants Edible natural colorants have the following advantages: (1) natural colorants come from animal and plant tissues, so they are generally safe for human beings (2) Some natural colorants are a kind of nutrients, which have nutritional effects, and some have some pharmacological effects (3) It can better imitate the color of natural objects, and the color is more natural when coloring The application of natural pigments also has the following limitations: (1) the solubility is small, and it is not easy to color evenly (2) The concentration of pigment is generally small, and its dyeing property is poor Some natural food colorants even change color due to chemical reaction of food raw materials (3) It has poor fastness and is greatly affected by pH value, oxidation, light, temperature, etc (4) Because it is extracted from natural substances, it is sometimes influenced by its coexisting components or has peculiar smell (5) It's harder to color Different colorants have poor solubility, so it is difficult to mix any color (6) Susceptible to metal ions and water quality Edible natural colorants are easy to decompose, change color or form insoluble salt under the catalysis of metal ions (7) It is easy to precipitate and turbid due to its complex ingredients, and the cost of pure product is high (8) There are great differences in products Natural colorants are basically mixtures of various components Moreover, the same colorant contains different components due to different sources and processing methods For example, the chlorophyll extracted from vegetables and silkworm excrement is determined by spectrophotometer, and it will be found that the maximum absorption peaks of the two are different, which results in the difference of hue in color matching (9) The nature of natural colorant is not as stable as synthetic colorant, and protective agent should be added in use, which has some adverse effects on the use of pigment (10) In most cases, the cost of natural pigment is much higher than that of synthetic pigment Some colorants are used in industry, but some of them are used in food What's the harm of excessive colorants? In fact, a small amount of colorants do not harm people, but excessive use will cause serious harm However, China's food safety detector can accurately check the safety level of food, so consumers can eat it at ease More food safety knowledge is in Baibai safety net Editor in charge: he xianrob