Pectin-Silica Composite Electrospraying for Polyphenol Stability
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Solution Overview
Problem
Existing methods for preparing electrospraying particles to enhance polyphenol stability are inadequate due to issues with nozzle blockage, insufficient storage stability of natural polymers, and potential safety hazards from synthetic polymers, leading to poor encapsulation efficiency and stability of polyphenols.
Innovation Solution
A method using a pectin-silica composite as a polyphenol loading carrier, combined with an acidic aqueous solution, to improve encapsulation efficiency and reduce exposure to oxygen and water, involving the preparation of a pectin-silica composite and coaxial electrospraying with a shell solution to produce stable electrospraying particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If natural polysaccharides and proteins are used as electrospraying substrate, then the processing is simple and easy to operate, but water vapor and oxygen can be rapidly contacted with active factors through diffusion leading to poor stability of polyphenols
Solution Approach 1:
The patent uses a composite material consisting of chitosan (natural polysaccharide) and silica (inorganic material) to create an electrospraying substrate that combines the ease of processing of natural polymers with the barrier properties of silica. The silica forms a dense network structure within the chitosan matrix, reducing the permeability to water vapor and oxygen while maintaining the overall processability of the natural polymer-based system.
2Ease of operation
If only natural polymers are used for electrospraying, then the operation is simple, but the protection of probiotic storage stability is insufficient
Solution Approach 1:
The patent combines chitosan (natural polymer) with silica (inorganic material) to create a composite electrospraying substrate. The silica component provides enhanced barrier properties and structural stability, improving the storage stability protection while the chitosan maintains the simplicity of operation associated with natural polymers. The composite structure creates a more effective encapsulation system than natural polymers alone.
3Reliability
If synthetic polymers are used for electrospraying, then the storage stability is improved, but there are potential safety hazards and the operation becomes complicated
Solution Approach 1:
The patent uses chitosan as an intermediary natural polymer that can be easily processed, and combines it with silica to achieve the storage stability typically associated with synthetic polymers. This approach avoids the safety hazards of synthetic polymers while maintaining operational simplicity through the use of natural materials that are biocompatible and easier to handle than synthetic alternatives.
4Productivity
If the specific surface area of electrospraying particles is increased, then the encapsulation efficiency is improved, but the exposure probability of polyphenols is increased leading to poor stability
Solution Approach 1:
The patent creates a thin film structure using the chitosan-silica composite that provides effective barrier protection. The silica forms a dense network within the thin chitosan film, creating a dual-layer protection system that maintains high encapsulation efficiency through the thin film's large surface area while the silica network within the film structure reduces the exposure probability of polyphenols to oxygen and water vapor.
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
The pectin-silica composite and acidic aqueous solution combination significantly enhances polyphenol stability, with a retention rate exceeding 70% after 50 days, compared to 42.2% with pectin electrospraying particles, by reducing water and oxygen penetration and maintaining the integrity of polyphenols.
Implementation Method 1
water vapor and oxygen can be rapidly contacted with active factors through diffusion... reduces the contact probability of polyphenols with oxygen and water
Implementation Method 2
During electrospraying, electrostatic force overcomes the surface tension of polymer droplets, and the liquid jet breaks down into small droplets
Implementation Method 3
electrostatic force overcomes the surface tension of polymer droplets
Data Source
AI summary
This invention provides a method for preparing electrospraying particles to improve stability of polyphenol including the following steps: preparing a pectin-silica composite; adding polyphenolic compounds into the pectin-silica composite to prepare a core solution; and coaxial electrospraying the core solution and a shell solution to prepare electrospraying particles loaded polyphenol. This method utilizes a pectin-silica composite as a polyphenol loading carrier, improves the encapsulating efficiency of polyphenols, reduces the contact probability of polyphenols with oxygen and water, and improves the stability of polyphenols; and an acidic aqueous solution is used as a shell solution to synergize with the pectin-silica composite to further improve the stability of polyphenols.