Precautions for use of common colorants

Introduction: colorant, also known as food pigment, is a kind of substance that makes food endowed with color and improves food color, belonging to food additives So, do you know the precautions for using common colorants? Colorant, also known as food pigment, is a kind of substance that makes food endowed with color and improves food color So, do you know the precautions for using common colorants? 1 The pigment used shall conform to the standard The pigment used must be the pigment specified in the hygienic standard for the use of food additives, and the dosage must be within the range specified in the standard According to the regulations, the pigment used shall be marked in the trademark 2 The proper selection of pigments should fully understand the properties of various pigments and beverage status, and the appropriate pigments should be selected according to the characteristics and use conditions of pigments The color should be similar to the original color of food The pigment with high purity should be selected as far as possible The purity of pigment is high, the brightness and extension of color are good, and the discoloration and fading are few When colored food is likely to ferment or produce hydrogen, or when adding reductive seasoning or spices, it is necessary to select reductive pigments 3 Color matching method in addition to the three basic colors of red, yellow and blue, the basic colors can also be mixed in different proportions to match the secondary colors, and the secondary colors can match the tertiary colors 4 When the color matching of mixed colors is selected correctly, the solubility, permeability, colorability and other properties of mixed colors should be similar or similar, otherwise, the color layer separation will be caused, the color inside and on the surface of the colored food will be different, or the color of the color solution will be different from the color of the product For example, when indigo and red moss are used together, indigo will make red moss fade faster; when indigo and lemon yellow are used together, indigo will fade quickly under sunlight 5 The preparation of pigment solution powder pigment can not be directly added to food, and the direct use of powder pigment is easy to cause uneven color and pigment spots Therefore, when color mixing, the solution should be prepared first, and the pigment should be dissolved in water, ethanol, propylene glycol and other appropriate solvents, so as to make it completely dissolved It is better to use it after filtration For example, when making coffee color, first dissolve amaranth, new carmine, lemon yellow, sunset yellow and bright blue in water respectively, and mix them in solution state The concentration of pigment solution is generally 1% - 10% In color matching, different solvents or solvent concentrations lead to different colors, especially when two or more colors are used for color matching For example, a certain proportion of red, yellow and blue mixtures have a yellow color in aqueous solution and a red color in 50% alcohol towel The above is a small edition of Baibai safety net, which provides you with an answer about the precautions for the use of common colorants If you want to know about the functions of colorants and other small knowledge, please pay attention to the food safety knowledge of Baibai safety net, and hope the above content can help you Editor in charge: Wu Mengli