Textured Vegetable Protein Compression for Structural Integrity
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Solution Overview
Problem
Textured vegetable protein products made using low moisture extrusion technology lack sufficient structural integrity and cooking resistance compared to meat products, resulting in a sponge-like texture and poor mouthfeel.
Innovation Solution
The method involves preparing an extrudate with proteinaceous fibre structures having expansion-related cavities, which are then compressed or compacted before cooling or drying, using compressive rheology pressing to reduce cavity size and increase fibre bonding, thereby enhancing structural integrity and cooking resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If low moisture extrusion texturization technology is used to produce textured vegetable protein products, then production efficiency and protein utilization are improved, but structural integrity and cooking resistance are insufficient compared to meat products
Solution Approach 1:
The patent applies preliminary action by conducting compression or compacting of the extrudate within a specific time window (0-60 seconds, preferably 0-30 seconds) after extrusion, before the proteinaceous phase completes curing or undergoes glass transition. This timing ensures the material is still in a plastic state and can be effectively compressed to reduce cavity size and improve fibre bonding, thereby enhancing structural integrity while maintaining production efficiency
2Shape
If low moisture extrusion is used to create proteinaceous fibre structure with expansion-related cavities, then texturization is achieved, but the texture becomes sponge-like with poor mouthfeel and excessive softness
Solution Approach 1:
The patent applies parameter changes by modifying the physical state parameters of the extrudate through compression. By applying compressive force within the critical time window after extrusion, the cavity volume is reduced and fibre bonding is enhanced, transforming the material from a sponge-like structure to one with improved mouthfeel that more closely resembles cooked meat texture
3Stability of the object's composition
If compression is applied after cooling or drying of the extrudate, then structural stability is improved, but fibre bonding and structural integrity are reduced
Solution Approach 1:
The patent resolves this contradiction by performing compression before cooling or drying occurs. By acting on the extrudate while it is still warm and in a plastic state, the compression effectively reduces cavity size and enhances fibre bonding. After compression, the extrudate is then cooled and dried, which provides structural stability without compromising the fibre bonding established during compression
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 process improves the texture to a meat-muscle like chewiness, increases cooking resistance, and reduces water absorption, resulting in a product with improved structural integrity and mouthfeel closer to meat products.
Implementation Method 1
before the proteinaceous phase completes its curing or undergoes a glass transition from the liquid-like to solid state
Data Source
AI summary
A method for improving the proteinaceous fibre structure of a textured vegetable protein product, methods of controlling the mouthfeel of a textured protein, and textured vegetable protein products. In the method for improving the proteinaceous fibre structure of a textured vegetable protein product, an extrudate is prepared with an extruder configured to carry out low-moisture protein texturization extrusion, the extrudate including a proteinaceous fibre structure having expansion-related cavities, such as air bubbles, between the proteinaceous fibres; after the extrusion, the extrudate is compressed or compacted in a manner leaving the proteinaceous fibres of the extrudate substantially intact. The compressing or compacting is sustained over a period that causes an irreversible reduction in the size of the expansion-related cavities between the proteinaceous fibres, and preferably also an increase in the bonding between the proteinaceous fibres.