Two-Stage Heating for Uniform Fibrous Meat Analogues
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Solution Overview
Problem
Existing processes for producing meat analogues do not provide sufficient stability, uniformity, and palatability, and often require exposure to very high temperatures, which can degrade the product.
Innovation Solution
A two-stage heating process is employed, where a meat batter is first heated above the denaturation temperature and then above the melting temperature of proteins, followed by controlled cooling to form a fibrous structure, reducing exposure to high temperatures and enhancing product stability and palatability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a one-step heating process is used to heat meat batter to high temperatures (110-180°C or 140-154°C), then the meat analogue can be produced efficiently, but the product stability and uniformity are insufficient and palatability is degraded
Solution Approach 1:
The heating process is divided into multiple stages with different temperature ranges and residence times. The first heating unit heats to an intermediate temperature (e.g., 60-90°C) and the second heating unit completes the heating to final temperature (e.g., 120-180°C). This segmentation allows optimized control of protein denaturation and fat melting processes, improving product stability and uniformity while maintaining production efficiency.
Solution Approach 2:
The first heating unit performs preliminary heating to denature proteins partially before the second heating unit completes the process. This preliminary action prepares the meat batter for the final heating stage, ensuring more uniform heat distribution and better control over the emulsion structure, which improves product stability and palatability.
2Loss of time
If meat batter is exposed to very high temperatures in a single step, then the heating process is simple and fast, but the palatability of the meat analogue is degraded
Solution Approach 1:
The heating process is segmented into two distinct stages: first heating (60-90°C) and second heating (120-180°C). This segmentation prevents excessive localized heating and allows gradual protein denaturation and fat rendering, preserving palatability while maintaining efficient production timing.
Solution Approach 2:
The process changes temperature parameters progressively through two heating stages rather than applying maximum temperature immediately. The first stage uses moderate temperatures for protein denaturation, and the second stage uses higher temperatures for fat melting and final cooking, preserving sensory quality while achieving complete processing.
3Device complexity
If a single heating unit is used to heat meat batter to the final temperature, then the apparatus is simple, but the manufacturing precision and uniformity of the meat analogue are insufficient
Solution Approach 1:
The heating apparatus is segmented into two separate heating units, each optimized for a specific temperature range. The first heating unit is designed for low-temperature protein denaturation and the second for high-temperature fat rendering. This segmentation provides better temperature control and more uniform heat distribution, improving product consistency and quality.
Solution Approach 2:
The first heating unit acts as an intermediary stage between the raw meat batter and the final high-temperature processing. It prepares the emulsion structure through controlled protein denaturation, creating a more uniform matrix that responds better to the subsequent high-temperature treatment, thereby improving overall product uniformity.
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 results in more stable and uniformly structured meat analogues with improved palatability, as demonstrated by reduced consumption in comparative examples.
Implementation Method 1
heating the meat batter to a temperature above the denaturation temperature of the protein in the meat batter but below the melting point of the protein
Implementation Method 2
heating the first heat-treated product to a temperature above the melting temperature of the protein
Implementation Method 3
cooling the second heat-treated product by moving through a cooling unit, so that the second heat-treated product has a temperature below water boiling temperature
Data Source
AI summary
The present invention relates to a process for the production of a meat analogue, comprising: a) introducing meat batter which comprises protein into a first heating unit and heating the meat batter to a temperature above the denaturation temperature of the protein in the meat batter, but below the melting point of the protein to produce a first heat-treated product, and b) transferring the first heat-treated product to a second heating unit and heating the first heat-treated product to a temperature above the melting temperature of the protein to produce a second heat-treated product, c) cooling the second heat-treated product by moving through a cooling unit, so that the second heat-treated product has a temperature below water boiling temperature at ambient pressure when exiting the cooling unit, and d) dividing the cooled second heat-treated product into pieces; as well as to an apparatus for the production of a meat analogue.