Plant Protein Core-Shell Microcapsules for Stable Perfume Delivery
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Solution Overview
Problem
The perfumery industry faces challenges in maintaining the stability and olfactive performance of odoriferous compounds due to their volatility, particularly in aggressive consumer product bases, and there is a need for eco-friendly delivery systems that can sustain suspension without degrading.
Innovation Solution
The development of plant protein-based core-shell microcapsules, utilizing polyfunctional monomers and plant proteins like potato, chickpea, or pea protein, to encapsulate hydrophobic materials, providing stability and controlled release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polyurea and polyurethane-based microcapsules are used, then stability and olfactive performance are improved, but eco-friendliness deteriorates
Solution Approach 1:
The invention changes the chemical composition parameters of the microcapsule shell from petroleum-based polyurea/polyurethane to plant protein-based materials. This substitution maintains the functional properties needed for stability while improving eco-friendliness by using renewable, biodegradable resources.
Solution Approach 2:
The invention creates composite microcapsule structures combining plant proteins with crosslinking agents and optional additives to achieve the desired stability and performance. This composite approach allows leveraging the eco-friendly nature of plant proteins while incorporating functional components that ensure stability in challenging bases.
2Object-affected harmful factors
If plant protein-based microcapsules are used, then eco-friendliness is improved, but stability in challenging bases deteriorates
Solution Approach 1:
The invention modifies the physical and chemical parameters of plant proteins through controlled crosslinking processes. This creates a more robust shell structure that can withstand aggressive surfactant detergents and challenging bases while maintaining the eco-friendly plant protein foundation.
Solution Approach 2:
The invention introduces crosslinking agents as intermediary substances that form bridges between plant protein molecules. These crosslinks create a strengthened network structure that enhances stability in challenging environments without compromising the plant protein base material.
3Reliability
If conventional microcapsules are used, then stability is improved, but biodegradability deteriorates
Solution Approach 1:
The invention changes the chemical structure parameters of the microcapsule shell from synthetic polyurea/polyurethane to plant protein-based structures. This fundamental material substitution enables biodegradability while maintaining stability through controlled crosslinking that creates a degradable yet robust network.
Solution Approach 2:
The invention adopts a disposable, biodegradable microcapsule design where the plant protein shell is intended to break down after serving its delivery function. This approach replaces persistent synthetic materials with renewable, biodegradable plant proteins that can safely decompose in the environment.
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 microcapsules offer eco-friendly stability in challenging bases while ensuring effective delivery of perfuming ingredients, maintaining olfactive performance and meeting consumer demands.
Implementation Method 1
performing core-shell microcapsules encapsulating hydrophobic material could be obtained by reacting a polyfunctional monomer (for example an acyl chloride) with optionally a reactant (for example at least one amino-compound) in the presence of a plant-based protein
Implementation Method 2
A key requirement from the industry regarding these systems is to survive suspension in challenging bases without physically dissociating or degrading
Data Source
AI summary
Described herein is a process for the preparation of plant protein-based microcapsules. Also described herein are protein-based microcapsules and perfuming compositions and consumer products including the microcapsules, in particular perfumed consumer products in the form of home care or personal care products.