Vegan Egg Substitute via Enzyme Crosslinking
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Solution Overview
Problem
Existing plant-based liquid egg substitutes fail to replicate the functionality and sensory properties of animal eggs, particularly in processing, and have high energy requirements and viscosity issues that affect pumpability, especially in large-scale production.
Innovation Solution
A method using a mixture of plant flours, water, and enzymes in a controlled reaction vessel with adjustable shear force and temperature, incorporating a thickener and vegetable oil to achieve protein crosslinking and stabilization, ensuring easy handling and pumpability, while using accessible and energy-efficient starting materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protein isolate is used to produce liquid egg substitute, then functional properties are improved, but energy consumption increases
Solution Approach 1:
The patent extracts only the necessary functional components (proteins and carbohydrates) from whole plant flours rather than producing purified protein isolates. This is achieved by using enzyme crosslinking (transglutaminase) and thermal treatment to stabilize the protein-carbohydrate matrix directly in the flour suspension, eliminating the energy-intensive protein isolate production step while maintaining egg substitute functionality
Solution Approach 2:
The patent creates a composite protein-carbohydrate matrix by combining plant flour (proteins) with thickeners (carbohydrates) through enzyme crosslinking and thermal treatment. This composite structure provides the necessary functional properties for egg substitution (emulsification, gelation, water binding) without requiring purified protein isolates, thereby reducing energy consumption
2Stability of the object's composition
If thickener is heated to higher temperatures, then stability is improved, but viscosity increases
Solution Approach 1:
The patent performs preliminary enzyme crosslinking (transglutaminase treatment at 30-50°C for 1-24 hours) before thermal heating of the thickener. This pre-crosslinking creates a stable protein network that prevents excessive water binding and viscosity increase during subsequent high-temperature thickener heating (above 70°C), allowing stability to be achieved without excessive viscosity
Solution Approach 2:
The patent carefully controls the sequence and parameters of thermal treatment: enzyme crosslinking at 30-50°C, then thickener heating at 70-90°C for only 1-10 minutes, followed by rapid cooling. This parameter optimization ensures the thickener achieves adequate stability while minimizing water incorporation and viscosity increase, maintaining pumpability
3Ease of manufacture
If plant flours are used instead of protein isolates, then accessibility is improved, but processing complexity increases
Solution Approach 1:
The patent optimizes key parameters to simplify processing of plant flours: pH 5.0-7.0 (optimal for transglutaminase activity), temperature 30-50°C for enzyme treatment, and controlled thickener heating at 70-90°C. These parameter optimizations ensure reliable enzyme crosslinking and thickener activation without requiring complex processing equipment or multiple steps, maintaining ease of manufacture
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 method produces a plant-based liquid egg substitute with functional properties comparable to animal eggs, maintaining stability and bioavailability of nutrients, and ensuring easy processing and dosing, suitable for various culinary applications.
Implementation Method 1
b) crosslinking the plant proteins by adding an enzyme, in particular transglutaminase
Implementation Method 2
Since, in addition to the pure protein fraction, the plant flours also contain significant amounts of carbohydrates, which can bind water very strongly in the form of amylopectin, it must be taken into account that these carbohydrates compete with the thickener added later in terms of water absorption and that gelatinization temperatures vary from person to person
Implementation Method 3
When reducing the microbial bacterial load, particular attention must be paid to the activation temperature (60 - 80 °C) of relevant spore formers. In conjunction with appropriate subsequent enzyme rests (1 - 5 h), the activated spores can germinate, which subsequently significantly influences the thermal inactivation of the harmful organisms
Data Source
AI summary
A method for producing a vegan liquid egg substitute is provided. In this method, a flour made from high-protein plant seeds and/or a powder containing protein isolates from such plant seeds undergoes a cross-linking treatment under heat. The resulting product is then cooled to a temperature below 50°C and thickened with a thickening agent.