Hemp Seed Protein Pickering Particles for Stable Powdered Oils
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Solution Overview
Problem
The development of powdered oils is hindered by the use of high-saturation oils linked to cardiovascular and cerebrovascular diseases and low molecular weight surfactants, which pose safety risks, and conventional emulsification methods result in poor physical stability.
Innovation Solution
A method is developed to create Pickering emulsions using hemp seed protein nanoparticles, extracted through alkali-soluble acid precipitation and anti-solvent precipitation, followed by spray-drying to produce highly stable and unsaturated powdered oils, replacing low molecular weight surfactants and enhancing emulsion stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional emulsification methods are used to prepare powdered oil, then the processing is simple, but the physical stability of the emulsion system is poor
Solution Approach 1:
The patent introduces solid particles (starch, protein, or polysaccharide particles) as intermediary agents to stabilize the oil-water interface. These particles act as mediators between the oil phase and water phase, forming a protective barrier that prevents emulsion breakdown. The solid particles adsorb at the interface and provide mechanical stability, transforming the conventional emulsion system into a Pickering emulsion system with enhanced physical stability.
2Reliability
If high-saturation oils are used in powdered oil production, then the emulsion can be stabilized, but cardiovascular and cerebrovascular diseases incidence increases
Solution Approach 1:
The patent changes the critical parameter of oil composition by replacing high-saturation oils with unsaturated oils. This parameter change maintains emulsion stability through the use of solid particle stabilizers, allowing the system to achieve reliability without the harmful effects of saturated fats. The solid particles compensate for the lower natural stability of unsaturated oil emulsions.
3Stability of the object's composition
If low molecular weight surfactants are used to stabilize emulsion, then the emulsion stability improves, but safety problems arise
Solution Approach 1:
The patent replaces conventional low molecular weight surfactants with natural solid particles (starch, protein, or polysaccharide particles) that are safer for consumption. These biocompatible particles provide the necessary interfacial stabilization without the safety concerns associated with synthetic surfactants, particularly in food applications where consumer safety is paramount.
4Adaptability or versatility
If hemp seed protein is directly used for Pickering emulsion preparation, then the utilization of hemp seed protein is achieved, but the poor water solubility and emulsifying property limit its effectiveness
Solution Approach 1:
The patent applies parameter changes to hemp seed protein through chemical modification (cross-linking with glutaraldehyde) to improve its functional properties. This treatment enhances the protein's water solubility and emulsifying characteristics, enabling it to effectively stabilize Pickering emulsions. The cross-linking modification transforms the protein structure to achieve better adaptability for emulsion stabilization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method improves the stability and safety of powdered oils by using hemp seed protein nanoparticles, reducing the risks associated with low molecular weight surfactants and conventional emulsification methods, while efficiently utilizing hemp seed protein and producing highly unsaturated powdered oils.
Implementation Method 1
extracting hemp seed protein by means of alkali-soluble acid precipitation
Implementation Method 2
preparing hemp seed protein Pickering nanoparticles by using an anti-solvent precipitation method
Implementation Method 3
Pickering emulsion is an emulsion system stabilized by solid particles irreversibly adsorbed onto an oil-water interface
Implementation Method 4
finally spray-drying to obtain the powdered oil
Data Source
AI summary
Disclosed are hemp seed protein Pickering particles as well as a preparation method and application thereof, belonging to the field of multi-component restructured foods. The preparation of Pickering emulsion based on hemp seed protein Pickering nanoparticles includes: preparing hemp seed protein Pickering particles by using an anti-solvent precipitation method under the condition of taking hemp seed protein as a raw material, formic acid and water as solvents; then, adding the prepared hemp seed protein Pickering particles into water together with maltodextrin and corn syrup solids for fully dissolving to form a homogeneous suspension; and adding vegetable oil into the suspension and mixing well to obtain the Pickering emulsion. The Pickering emulsion is high in stability, and powdered oil constructed by using same has the advantages of being environmentally-friendly, cost-saving, and easy to achieve high stability and high unsaturation, thus having wide application value in food and medicine fields.