As a food processing improver, magnesium oxide leverages properties such as pH adjustment, emulsion stabilization, coagulation reinforcement, and decolorization assistance to solve pain points in food processing such as separation, sedimentation, rough texture, difficulty in shaping, and uneven color. It is adaptable to a variety of processing scenarios including flour products, dairy products, confectionery, and soy products, enhancing food quality and processing efficiency without affecting food flavor and safety.
1. Flour Product Processing: Quality and Toughness Enhancement, Stable Fermentation
In the processing of flour products, magnesium oxide primarily plays the roles of pH adjustment and gluten strengthening. It neutralizes organic acids generated during flour fermentation, adjusting the dough pH to an optimal range of 6.5–7.0, which promotes yeast fermentation and prevents the dough from becoming sour or under-fermented. It binds with dough proteins to strengthen the toughness and elasticity of the gluten network, preventing bread collapse and noodles from becoming mushy or sticky when boiled. Additionally, it delays the staling of flour products, improves color uniformity, and prevents the texture from becoming hard and stringy after storage.
2. Dairy Product Processing: Stable Emulsification, Optimized Texture
In dairy products such as yogurt, cheese, and milk powder, magnesium oxide acts as an emulsion stabilizer and pH regulator. It promotes lactic acid bacteria fermentation, making yogurt curds uniform and delicate, preventing layer separation and sedimentation, and improving thickness and smoothness. It assists in milk protein coagulation, enhancing the shaping effect and toughness of cheese while reducing brittleness. It also regulates the pH of milk powder to improve solubility, preventing lumps upon brewing, while supplementing magnesium to work synergistically with calcium to enhance nutritional utilization.
3. Confectionery and Chocolate Processing: Texture Improvement, Defect Prevention
Used in candy and chocolate processing, it improves product texture and storage stability. It acts as an anti-caking agent to prevent powdered candy and hard candies from absorbing moisture and sticking together. It regulates the pH of chocolate, optimizes the emulsification effect, prevents blooming and separation during storage, and enhances delicate texture. Furthermore, it enhances the toughness and elasticity of gummies, prevents deformation, and extends shelf life.
4. Other Processing Scenarios: Coagulation and Decolorization Assistance
In soy product processing, it serves as a coagulant to assist in soybean protein coagulation, improving the shaping effect and toughness of products like tofu and dried tofu, and preventing them from easily breaking or crumbling. During sugar refining, it can be used as a decolorizing agent to improve sugar color and enhance product appearance quality. In beverages and pickled foods, it also helps regulate system stability, boosting overall product quality.