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A method for preparing zinc caseinate by extrusion expansion method

A zinc caseinate, extrusion and puffing technology, applied in the field of zinc caseinate, can solve the problems of incomplete product quality, waste of labor conversion, high labor intensity, etc., and achieve the effects of good viscosity, normal odor, and low energy consumption

Active Publication Date: 2016-08-24
GANSU PULUO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing zinc caseinate by extruding and puffing conversion method in order to solve the problem of high labor intensity, serious waste of labor and incomplete conversion caused by manual operation in the conversion section. The problems caused by the decline or instability of product quality and the bad smell of products

Method used

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  • A method for preparing zinc caseinate by extrusion expansion method
  • A method for preparing zinc caseinate by extrusion expansion method
  • A method for preparing zinc caseinate by extrusion expansion method

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Embodiment 1

[0024] A method for preparing zinc caseinate by extrusion method, comprising the following steps:

[0025] ① Raw material characteristics: Casein is used as raw material, and the physical and chemical indicators of casein are 92% protein, 1.6% fat, and 1.7% ash;

[0026] ② Preparation of alkaline zinc salt solution: dissolving zinc sulfate in ammonia water to form an alkaline zinc sulfate solution with a mass fraction of 3%;

[0027] ③Extrusion and puffing transformation: Add casein into the extruder at a uniform speed, add alkaline zinc sulfate solution at the same time, the amount of alkaline zinc sulfate solution added is 1% of the mass of casein, and the addition of alkaline zinc sulfate solution The flow rate is 200L / h, so that the casein and alkaline zinc sulfate solution are extruded and expanded in the extruder to obtain zinc caseinate, wherein the casein and alkaline zinc sulfate solution pass through five The temperature section is transformed, the temperature of se...

Embodiment 2

[0030] A method for preparing zinc caseinate by extrusion method, comprising the following steps:

[0031] ① Raw material characteristics: Casein is used as raw material, and the physical and chemical indicators of casein are 92.4% protein, 1.6% fat, and 2.0% ash;

[0032] ② Preparation of alkaline zinc salt solution: dissolving zinc oxide in a sodium hydroxide solution with a mass fraction of 10% to form an alkaline zinc oxide solution with a mass fraction of 1%;

[0033] ③ Extrusion and puffing conversion: Add casein into the extruder at a uniform speed, and add alkaline zinc oxide solution at the same time, the amount of alkaline zinc oxide solution added is 4% of the mass of casein, and the amount of alkaline zinc oxide solution is The amount of addition is 400L / h, and the casein and the alkaline zinc oxide solution are extruded and expanded in the extruder to obtain zinc caseinate, wherein the casein and the alkaline zinc oxide solution are sequentially passed through fiv...

Embodiment 3

[0036] A method for preparing zinc caseinate by extrusion method, comprising the following steps:

[0037] ① Raw material characteristics: Casein is used as raw material, and the physical and chemical indicators of casein are 92.4% protein, 2.5% fat, and 2.0% ash;

[0038] ② Preparation of alkaline zinc salt solution: dissolving zinc oxide in a sodium hydroxide solution with a mass fraction of 10% to form an alkaline zinc oxide solution with a mass fraction of 2%;

[0039] ③Extrusion and puffing conversion: Add casein into the extruder at a uniform speed, and add alkaline zinc oxide solution at the same time, the amount of alkaline zinc oxide solution added is 3% of the mass of casein, and the amount of alkaline zinc oxide solution is The amount of addition is 400L / h, and the casein and alkaline zinc oxide solution are extruded and expanded in the extruder to obtain zinc caseinate, wherein the casein and alkaline zinc oxide solution are sequentially passed through the extruder ...

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Abstract

A method for preparing zinc caseinate by means of extrusion and puffing. The method is to dissolve the water-insoluble zinc salt in an alkaline solution, and then use koji casein as a raw material while adding the prepared zinc salt solution through extrusion. Zinc caseinate is produced by mechanical expansion, and the zinc caseinate prepared by using ammonia water or sodium hydroxide solution as the zinc oxide solution has low ash content, high chelated zinc content, high viscosity, and good emulsification. It solves the problems of manual labor and energy consumption in the prior art which employ complicated processes such as raw material dissolution, acid precipitation, rubber milling, transformation, and spray drying. Zinc caseinate prepared by the present invention has protein content ≥ 88%, fat content ≤ 2.0%, ash content ≤ 5.5%, zinc content ≥ 1.6%, the contents of various physical and chemical indicators are in line with the standards, and the zinc content is also within the standard range. It has good viscosity, good color, normal smell, simple process and low energy consumption.

Description

technical field [0001] The invention relates to the technical field of zinc caseinate, in particular to a method for preparing zinc caseinate by means of extrusion and puffing. Background technique [0002] Zinc caseinate is a derivative of casein. It is a product obtained by dissolving, neutralizing, transforming and drying the main protein casein in milk. Its main component is casein (the content is generally above 95). Various evidences in recent years suggest that a relative deficiency of zinc in the human diet is not uncommon. Zinc deficiency in infants, the elderly, and pregnant women has been widely studied. The main symptoms of zinc deficiency are: 1) loss of appetite, partial eclipse, and anorexia; 2) yellowish, dull hair, and white spots on the nails; Short stature, growth stagnation, and slow mental development; 4) Decreased immunity, poor resistance, and difficult wound healing; 5) Likes to bite nails, fingers, and even eat dirt, sand and other symptoms of pica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J3/10A23K20/20A23L33/16A23L33/17A23K20/147
Inventor 刘兴龙张玉平王蓉柴金贵王东东拜海龙马金丽马金勇俞树孝
Owner GANSU PULUO BIOTECH
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