Enzymatic Crosslinking for Texturized Food Materials
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Solution Overview
Problem
Existing methods for producing meat or fish analogue products from non-animal protein sources face challenges in maintaining high moisture content, incorporating heat-sensitive nutrients, and achieving textures similar to animal products, often requiring high-temperature processing that can lead to dehydration and nutrient loss.
Innovation Solution
A method involving a food mixture with a protein and a crosslinking enzyme, directionally frozen to create anisotropic ice crystals, followed by enzymatic crosslinking at a temperature where the enzyme is active, allowing for the formation of a crosslinked, juicy, and texturized product without the need for high-temperature stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If high-temperature processing is used to stabilize the texturized food product, then the texture stability is improved, but the moisture content decreases and heat-sensitive nutrients are lost
Solution Approach 1:
The invention changes the stabilization parameter from thermal (heat treatment) to chemical/enzymatic (crosslinking). By using crosslinking agents or enzymatic reactions, the texturized food product achieves structural stability without exposure to high temperatures, thereby preserving moisture content and heat-sensitive nutrients while maintaining texture stability.
Solution Approach 2:
The invention replaces the thermal stabilization mechanism with a chemical or enzymatic crosslinking mechanism. Instead of using heat to denature and stabilize proteins, the patent employs crosslinking agents or enzymes to form covalent bonds between protein molecules, achieving stabilization through chemical bonding rather than thermal processing.
2Stability of the object's composition
If freeze drying or submersion into non-solvent is used for stabilization, then the texture is stabilized, but the product becomes dehydrated and loses juiciness
Solution Approach 1:
The invention replaces physical stabilization methods (freeze drying or non-solvent submersion) with chemical/enzymatic crosslinking. This substitution allows the product to maintain its moisture content while achieving texture stabilization through molecular bonding, avoiding the dehydration effects of conventional methods.
Solution Approach 2:
The invention introduces crosslinking agents or enzymes as intermediaries to stabilize the texturized food product. These intermediaries facilitate bond formation between protein molecules without requiring removal of water or use of non-solvents, thereby maintaining the natural moisture content and juiciness of the product.
3Stability of the object's composition
If heat treatment above 100°C is applied to gel the protein, then the protein structure is stabilized, but heat-sensitive nutrients are destroyed
Solution Approach 1:
The invention replaces thermal protein gelation with enzymatic or chemical crosslinking. By using enzymes or crosslinking agents to stabilize protein structure through molecular bonding, the process avoids high-temperature treatment that would otherwise destroy heat-sensitive nutrients, achieving structural stability through non-thermal means.
Solution Approach 2:
The invention changes the protein stabilization parameter from thermal (temperature-based gelation) to chemical/enzymatic (crosslinking). This parameter change allows protein structure stabilization to occur at lower temperatures, preserving heat-sensitive nutrients while achieving the desired structural stability through crosslinking reactions.
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 enables the creation of meat or fish analogues with a lamellar or fibrillar structure, high moisture content, and the retention of heat-sensitive nutrients, providing a texture similar to animal products while being energy-efficient and scalable.
Implementation Method 1
directionally freezing said food stuff mixture by cooling to below the freezing temperature of the food stuff mixture according to a directional thermal gradient such that ice crystals are grown anisotropically
Implementation Method 2
ice crystals are grown anisotropically within the food stuff mixture to create a frozen texturized food stuff mixture
Implementation Method 3
increasing the temperature of said frozen texturized food stuff mixture to a temperature at which the crosslinking enzyme is active and allowing the texturized food stuff mixture to form a crosslinked texturized food stuff
Data Source
AI summary
A method for preparing a crosslinked texturized food stuff, comprising the steps of: providing a food stuff mixture comprising at least a protein, water and a crosslinking enzyme; directionally freezing said food stuff mixture by cooling to below the freezing temperature of the food stuff mixture according to a directional thermal gradient such that ice crystals are grown anisotropically within the food stuff mixture to create a frozen texturized food stuff mixture; and increasing the temperature of said frozen texturized food stuff mixture to a temperature at which the crosslinking enzyme is active and allowing the texturized food stuff mixture to form a crosslinked texturized food stuff.