High-Moisture Texturized Peanut Protein via Low-Temperature Extrusion
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Solution Overview
Problem
Current methods for producing high-moisture texturized peanut protein (TPP) often result in nutrient destruction due to high temperature processing and require additives, leading to products with beany flavor and limited fibrous structure, making them unsuitable for direct consumption.
Innovation Solution
A method involving low-temperature defatted peanut protein powder crushed and mixed, followed by extrusion texturization using a twin-screw extruder with controlled temperature zones and moisture adjustment to produce high-moisture TPP without additives, resulting in a product with enhanced fibrous structure and nutritional preservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If high temperature processing is used to produce texturized peanut protein, then the fibrous structure and texture are improved, but the nutritional content is destroyed
Solution Approach 1:
The patent changes the temperature parameter from conventional high temperature (80-120°C) to low temperature (40-60°C) extrusion processing. This parameter change allows the formation of fibrous structure through extended processing time and optimized moisture content (35-45%) while preventing thermal degradation of nutritional components such as proteins, vitamins, and minerals in the peanut protein
2Productivity
If conventional extrusion method is used, then the processing efficiency is high, but the product has beany flavor and requires rehydration
Solution Approach 1:
The patent optimizes multiple parameters simultaneously: moisture content (35-45%), temperature (40-60°C), and extrusion time (20-40 minutes). These parameter changes enable the production of high-moisture texturized peanut protein with reduced beany flavor and improved texture that does not require rehydration before consumption
Solution Approach 2:
The patent performs preliminary moisture adjustment and temperature control before extrusion to prepare the peanut protein for optimal texturization. This preliminary preparation ensures that the extrusion process occurs under conditions that minimize beany flavor development while maximizing fibrous structure formation
3Strength
If high moisture content is used during extrusion, then the fibrous structure and elasticity are improved, but the processing complexity increases
Solution Approach 1:
The patent increases moisture content to 35-45% during extrusion, which enhances the elasticity and fibrous structure of the texturized peanut protein. The low temperature (40-60°C) and extended time (20-40 minutes) compensate for the higher moisture, maintaining process control without requiring complex additional equipment
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 high-moisture TPP with improved texture, flavor, and nutritional retention, eliminating the need for rehydration and reducing beany flavor, suitable for direct consumption as meat analogues with enhanced fibrous structure and nutritional content.
Implementation Method 1
extrusion texturization using a twin-screw extruder with controlled temperature zones
Implementation Method 2
extrusion texturization treatment... water is added online during extrusion to adjust the material moisture
Implementation Method 3
controlled temperature zones... extrusion temperatures are as follows: 60°C to 80°C (the temperature of the feeding zone), 90°C to 100°C (the temperature of the mixing zone), 120°C to 160°C (the temperature of the melting zone)
Implementation Method 4
water is added online during extrusion to adjust the material moisture, so that water and the material are mixed well in the barrel, and the moisture content of the material during extrusion is 45% to 60%
Data Source
AI summary
High-moisture TPP and its preparation by crushing and mixing low-temperature defatted peanut protein powder and extrusion texturizing at 60° C. to 80° C. in the feeding zone, 90° C. to 100° C. in the mixing zone, 120° C. to 160° C. in the melting zone, 90° C. to 150° C. at the cooling die, and 50° C. to 100° C. in the molding zone. Water is added online during extrusion to adjust the moisture content to 45% to 60%. The cooled product is high-moisture TPP that has a moisture content of 55% or more, bright white color, fragrant taste, abundant fibrous structure, is immediately edible, and can be used as a substitute for meat in the manufacture of chicken dices, pulled meat, vegetarian sausage and the like. The method fully utilizes raw materials, has almost no waste, is continuous, has a high process integration, and low energy consumption, and it can enhance the value of peanut protein powder.