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Water-soluble phytosterol nanoparticles and preparation method thereof

A phytosterol and nanoparticle technology, which is applied in food science, the function of food ingredients, and food ingredients as emulsifiers, etc., can solve problems such as limited application, and achieve the effects of simple process, improved availability, and good water solubility.

Inactive Publication Date: 2021-08-31
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of phytosterol esters, their use is more limited and only suitable for high-fat foods, so they may not be ideal for some people following a low-fat diet

Method used

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  • Water-soluble phytosterol nanoparticles and preparation method thereof
  • Water-soluble phytosterol nanoparticles and preparation method thereof
  • Water-soluble phytosterol nanoparticles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A preparation method of water-soluble phytosterol nanoparticles, comprising the steps of:

[0065] (1) Add soybean protein powder into water, disperse evenly to obtain a dispersion, adjust the pH of the dispersion to 7.0, and hydrate at a temperature of 4°C for 12 hours to obtain a protein solution (5 wt%);

[0066] (2) Dissolving phytosterols (soybean phytosterols produced by Shaanxi Haisifu Bioengineering Co., Ltd.) and lecithin in ethyl acetate, the mass ratio of the phytosterols to lecithin is 1:1-1:4, The mass volume ratio of the lecithin to ethyl acetate is 50 mg / mL, stirred at room temperature to make it fully dissolved evenly, to obtain a phytosterol solution (organic phase);

[0067] (3) Open the high-speed emulsifying shearing machine, under the shear state, the phytosterol solution is added in the protein solution, the volume of the phytosterol solution is 25% of the volume of the protein solution, and homogenization is carried out under the condition of 3000...

Embodiment 2

[0071] A preparation method of water-soluble phytosterol nanoparticles, comprising the steps of:

[0072] (1) Add soybean protein powder into water, disperse evenly to obtain a dispersion, adjust the pH of the dispersion to 7.0, and hydrate at a temperature of 4°C for 12 hours to obtain a protein solution (5 wt%);

[0073] (2) dissolving phytosterols (the soybean phytosterols produced by Shaanxi Haisifu Bioengineering Co., Ltd.) and lecithin in ethyl acetate, the mass ratio of the phytosterols to lecithin is 1:3, and the lecithin The mass volume ratio with ethyl acetate is 50mg / mL, stir at room temperature to make it fully dissolve and evenly, and obtain the phytosterol solution (organic phase);

[0074] (3) Turn on the high-speed shearing machine, and in a shear state, add the phytosterol solution into the protein solution, the volume of the phytosterol solution is 10-30% of the volume of the protein solution, and carry out under the condition that the rotating speed is 30000...

Embodiment 3

[0078] A preparation method of water-soluble phytosterol nanoparticles, comprising the steps of:

[0079] (1) Add soybean protein powder into water, disperse evenly to obtain a dispersion, adjust the pH of the dispersion to 7.0, and hydrate at a temperature of 4°C for 12 hours to obtain a protein solution (1-5 wt%);

[0080] (2) dissolving phytosterols (soybean phytosterols produced by Shaanxi Haisifu Biological Engineering Co., Ltd.) and lecithin in ethyl acetate at a mass ratio of 1:3, the mass ratio of said phytosterols to lecithin is 1 : 3, the mass volume ratio of described lecithin and ethyl acetate is 50mg / mL, and stirring at room temperature makes it fully dissolve evenly, obtains phytosterol solution (organic phase);

[0081] (3) Open the high-speed shearing machine, under the shearing state, the phytosterol solution is added in the protein solution, the volume of the phytosterol solution is 25% of the volume of the protein solution, and it is carried out under the co...

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Abstract

The invention discloses water-soluble phytosterol nanoparticles and a preparation method thereof. The method comprises the following steps of adding protein powder into water, and hydrating to obtain a protein solution; dissolving phytosterol and an emulsifier in an ethyl acetate solution to form an organic phase; and rapidly adding an organic phase into the protein solution, homogenizing, carrying out microjet treatment, removing ethyl acetate in the obtained mixed solution, and carrying out spray drying to obtain the product. The emulsification technology and the high-pressure microjet are effectively combined, and the preparation process is simple, convenient, efficient, economical and green. The obtained phytosterol product has relatively small particle size and relatively high water solubility, efficient embedding and biological utilization of sterol are achieved at the same time, the used raw materials such as soybean protein, phytosterol and lecithin all have a certain health effect, especially a cholesterol lowering effect, the application range of phytosterol is widened, and the phytosterol nanoparticles can be used as a functional factor to be well applied to various food matrixes and medicines.

Description

technical field [0001] The invention belongs to the technical field of functional food processing, and in particular relates to a water-soluble phytosterol nanoparticle and a preparation method thereof. Background technique [0002] Phytosterols are a class of functional lipids derived from plants, especially corn and soybeans, and are a general term for sterol compounds in plants. As a natural active substance, phytosterols have a variety of special functional properties, including cholesterol-lowering effects, anti-cancer effects, anti-oxidation effects, anti-inflammatory and antipyretic effects, etc. Among them, since the molecular structure of phytosterols is very similar to the structure of cholesterol in the human body, it can affect the metabolism of cholesterol in the human body to a certain extent, and its function of lowering blood fat and cholesterol has increasingly become the focus of research. Health authorities around the world, including the United States, C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/11A23L29/10A23L29/00
CPCA23L33/11A23L29/10A23L29/045A23V2002/00A23V2200/222A23V2200/3262A23V2250/2136A23V2250/1842A23V2250/5488A23V2250/54246
Inventor 唐传核朱雯雯
Owner SOUTH CHINA UNIV OF TECH
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