Extruded Corn Protein Material Density Control
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Solution Overview
Problem
Existing methods for producing extruded food products with high protein content often result in dense, hard textures due to protein resistance to expansion, making it difficult to achieve light and crisp textures, especially with corn protein isolates or concentrates.
Innovation Solution
A method involving blending corn protein isolates or concentrates with polysaccharides and additional ingredients, followed by extrusion processing, which includes specific temperature, torque, and moisture control to achieve a cooked dough product with a density ranging from 40 g/L to 350 g/L, enabling the production of light and crisp textures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If corn protein isolate or concentrate is used to produce high protein extruded food products, then protein content is improved, but texture becomes dense and hard
Solution Approach 1:
A polysaccharide intermediary is introduced between the corn protein isolate/concentrate and the final food product. The polysaccharide acts as a mediator that modifies the protein's behavior during extrusion, enabling the protein to expand properly and form a light, crisp texture rather than remaining dense and hard. This intermediary substance allows high protein content to be achieved while maintaining desirable texture characteristics.
2Strength
If corn protein isolate or concentrate is used to achieve light and crisp texture, then texture quality is improved, but protein content is reduced
Solution Approach 1:
The physical and chemical parameters of the corn protein isolate or concentrate are modified through controlled extrusion processing conditions. By adjusting temperature, pressure, moisture content, and residence time during extrusion, the protein structure is transformed to enable proper expansion and texture development. These parameter changes allow the protein to achieve light and crisp texture characteristics while maintaining high protein content in the final product.
3Ease of manufacture
If traditional extrusion methods are used with corn protein, then processing simplicity is maintained, but texture quality deteriorates
Solution Approach 1:
A composite material system is created by combining corn protein isolate or concentrate with specific polysaccharides. This composite approach leverages the complementary properties of both materials: the high protein content and nutritional value of the corn protein combined with the texture-modifying capabilities of the polysaccharide. The composite material can be processed using standard extrusion equipment while achieving superior light and crisp texture quality that cannot be obtained with corn protein alone.
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 successfully produces extruded food products with high protein content that are light and crisp, overcoming the traditional challenge of achieving such textures with corn protein, and potentially offering better nutritional and handling properties.
Implementation Method 1
The premix is cooked, preferably by extrusion technique
Implementation Method 2
extrusion processing, which includes specific temperature, torque, and moisture control
Implementation Method 3
achieving proper expansion and texture development
Data Source
AI summary
Described herein is a food product and methods of manufacturing the same, comprising a corn protein isolate or corn protein concentrate and a polysaccharide; wherein the food product has a density ranging from about 40 g/L to about 350 g/L.