Food color protecting agent

Introduction: food color fixative refers to the food additive that does not have color but can make the food produce color or improve the color of the food Let me give you a brief introduction Color fixative, also known as chromogenic agent, refers to the substance added in the food processing process to make fruits, vegetables and meat products present good color The color protecting agent itself is colorless, but it can react with the pigment in food to form a new substance This new substance can enhance the stability of pigment, so as to achieve the purpose of color protection With the development of food industry, color protectors, as a kind of food additives, are widely used The color protecting agent can protect the stability of pigment Sodium tripolyphosphate, sodium pyrophosphate, sodium hexametaphosphate, sodium citrate, phytic acid, sodium isoascorbate, calcium lactate and other color protectors have obvious color protecting effects on most common pigments, such as carmine, amaranth, seductive red, lemon yellow, sunset yellow, bright blue, β - carotene and other pigments In order to make meat products bright red, nitrate (sodium or potassium) or nitrite are often added in the process of processing Nitrate is reduced to nitrite by bacterial nitrate reductase Nitrite will form nitrite in acid condition Under normal temperature, it can also decompose to produce nitroso (no) At this time, the generated nitroso will react with myoglobin quickly to generate stable, bright and bright red nitromyoglobin, so that the meat can maintain a stable and bright color However, it should be noted that nitrite in meat products can react with a variety of amino compounds to produce carcinogenic N-nitroso compounds, such as nitrosamines Nitrosamine is a strong carcinogen recognized in the world at present, and the results of animal experiments have been proved Therefore, food color protectors should be used scientifically Today, the small edition of Baibai safety net has made a simple exposition on food color protectors For the types of food additives, please pay attention to other articles on our website, and hope that today's content can help you Editor in charge: sun Dianwei