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CN-121970812-A - Preparation method of composite mineral nutrition emulsion

CN121970812ACN 121970812 ACN121970812 ACN 121970812ACN-121970812-A

Abstract

The invention belongs to the technical field of food processing, and in particular relates to a preparation method of a composite mineral nutrition emulsion, which comprises the following steps of shearing a colloid aqueous solution for obtaining a colloid matrix; adding calcium citrate into a colloid matrix, performing second shearing to obtain calcium citrate suspension, mixing zinc citrate, ferric ammonium citrate and water to obtain microelement aqueous solution, mixing fruit juice and fermented milk to obtain mixed emulsion, mixing microelement aqueous solution and mixed emulsion, performing third shearing to obtain flavor nutrient emulsion, mixing calcium citrate suspension and flavor nutrient emulsion, homogenizing under high pressure, and sterilizing to obtain the composite mineral nutrient emulsion. The preparation method can obviously improve the stability and the absorptivity of the composite mineral nutrition emulsion, can fully dissolve multiple nutrients and improves the nutritional value of the product.

Inventors

  • YE WEI
  • MENG CHEN
  • GUO BINGQI

Assignees

  • 永安康健药业（武汉）有限公司

Dates

Publication Date
20260505
Application Date
20260305

Claims (10)

  1. 1. The preparation method of the composite mineral nutrition emulsion is characterized by comprising the following steps: Adding calcium citrate into the colloidal matrix, and shearing the calcium citrate to obtain calcium citrate suspension; Mixing zinc citrate, ferric ammonium citrate and water to obtain a microelement aqueous solution, mixing fruit juice and fermented milk to obtain a mixed emulsion, mixing the microelement aqueous solution and the mixed emulsion, and carrying out third shearing to obtain a flavor nutrient emulsion; Mixing the calcium citrate suspension and the flavor nutrient emulsion, homogenizing under high pressure, and sterilizing to obtain the composite mineral nutrient emulsion.
  2. 2. The method according to claim 1, wherein the first shearing speed is 8000-10000 rpm for 10-15 min; The rotation speed of the second shearing is 10000-12000 rpm, and the time is 15-20 min; The rotating speed of the third shearing is 8000-10000 rpm, and the time is 2-8 min.
  3. 3. The method according to claim 1, wherein the high-pressure homogenizing is carried out at a pressurizing pressure of 25 to 40mpa and circulated 2 to 3 times.
  4. 4. The method according to claim 3, wherein the high-pressure homogenization is followed by addition of fruit powder at a speed of 200rpm or less with stirring.
  5. 5. The method according to claim 1, wherein the sterilization is performed at a temperature of 85-95 ℃ for 15-30 seconds.
  6. 6. The preparation method of claim 1, wherein the mass ratio of calcium citrate to colloidal matrix is 2-3:25-40; the aqueous colloidal solution comprises a hydrocolloid, a sweetener and water.
  7. 7. The preparation method of the zinc citrate powder according to claim 1, wherein the mass ratio of the zinc citrate to the water is 0.1-0.2:50-60, and the mass ratio of the ferric ammonium citrate to the water is 0.02-0.08:50-60; The zinc citrate and the ferric ammonium citrate are mixed with water and further comprise a sweetener and/or an acidulant.
  8. 8. The method according to claim 6 or 7, wherein the sweetener comprises xylitol and/or fructose, and the sour agent comprises citric acid and/or DL-malic acid.
  9. 9. The preparation method of claim 1, wherein the mass ratio of the fruit juice to the fermented milk is 1-4:0.5-2, and the mass ratio of the trace element aqueous solution to the mixed emulsion is 50-70:1.5-6.
  10. 10. The preparation method of claim 9, wherein the mass ratio of the calcium citrate suspension to the flavor nutrient emulsion is 20-45:55-80.

Description

Preparation method of composite mineral nutrition emulsion Technical Field The invention belongs to the technical field of food processing, and particularly relates to a preparation method of a composite mineral nutrition emulsion. Background Calcium is an indispensable macromineral for human body, and is important for maintaining physiological functions such as bone health, nerve conduction, muscle contraction and blood coagulation. With the rise of health consciousness, the market demand for calcium and composite mineral nutritional supplements is increasing. However, conventional mineral supplements, particularly inorganic calcium represented by calcium carbonate, have inherent disadvantages of low absorption rate, reliance on gastric acid, susceptibility to gastrointestinal discomfort, and the like. Although calcium citrate has the remarkable advantages of good solubility, no dependence on gastric acid, high bioavailability, small irritation to gastrointestinal tract and the like as an organic calcium salt, the calcium citrate still faces serious challenges in the application process, particularly in a liquid emulsion system: (1) Physical stability problems high density mineral powders, especially calcium citrate, are stably dispersed in the aqueous phase and remain uniform for long periods of time, a long-term technical bottleneck in the industry. The prior art relies on adding a large amount of thickener (such as xanthan gum and carrageenan) to slow down sedimentation, but the thickener often causes the product to have sticky taste and reduced palatability, and the problem of unstable interface cannot be fundamentally solved. (2) Chemical stability and bioavailability are the bottlenecks-the solubility of calcium citrate in the neutral to weakly alkaline environment of the intestinal tract is reduced, precipitation is easily produced and final absorption is affected. The complex minerals (e.g., magnesium, zinc) may have physicochemical interactions between the fat-soluble vitamins that promote absorption or affect bioavailability due to their instability in nature. (3) The functional components have insufficient cooperativity, the formula design of most mineral supplementary products on the market at present is relatively simple, the precise design of the cooperativity between the components is lacking, the components cannot be effectively integrated in a stable emulsion system, and the nutrients are ensured to keep activity and release cooperatively. Therefore, there is an urgent need in the art to develop a new preparation method for preparing a composite mineral nutritional emulsion with high stability and high absorptivity. Disclosure of Invention The invention aims to provide a preparation method of a composite mineral nutrition emulsion, which can obviously improve the stability and the absorptivity of the composite mineral nutrition emulsion, fully dissolve multiple nutrients and improve the nutritional value of a product. The invention provides a preparation method of a composite mineral nutrition emulsion, which comprises the following steps: Adding calcium citrate into the colloidal matrix, and shearing the calcium citrate to obtain calcium citrate suspension; Mixing zinc citrate, ferric ammonium citrate and water to obtain a microelement aqueous solution, mixing fruit juice and fermented milk to obtain a mixed emulsion, mixing the microelement aqueous solution and the mixed emulsion, and carrying out third shearing to obtain a flavor nutrient emulsion; Mixing the calcium citrate suspension and the flavor nutrient emulsion, homogenizing under high pressure, and sterilizing to obtain the composite mineral nutrient emulsion. As a preferable scheme, the rotating speed of the first shearing is 8000-10000 rpm, and the time is 10-15 min; The rotation speed of the second shearing is 10000-12000 rpm, and the time is 15-20 min; The rotating speed of the third shearing is 8000-10000 rpm, and the time is 2-8 min. As a preferable scheme, the pressurizing pressure of the high-pressure homogenization is 25-40 MPa, and the high-pressure homogenization is circulated for 2-3 times. As a preferable scheme, the high-pressure homogenizing process further comprises the step of adding fruit powder, wherein stirring is carried out during the adding process, and the stirring rotating speed is less than or equal to 200rpm. As a preferable scheme, the sterilization temperature is 85-95 ℃ and the sterilization time is 15-30 s. As a preferable scheme, the mass ratio of the calcium citrate to the colloid matrix is 2-3:25-40; the aqueous colloidal solution comprises a hydrocolloid, a sweetener and water. As a preferable scheme, the mass ratio of the zinc citrate to the water is 0.1-0.2:50-60, and the mass ratio of the ferric ammonium citrate to the water is 0.02-0.08:50-60; The zinc citrate and the ferric ammonium citrate are mixed with water and further comprise a sweetener and/or an acidulant. As a preferred embodiment