Pea Protein Concentrates Using Dry Air Classification
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Solution Overview
Problem
Existing methods for producing high-protein pea compositions are inefficient and economically unviable, with wet fractionation leading to chemical residues and loss of native functionality, while dry processing struggles to achieve high protein content without significant yield loss.
Innovation Solution
A method involving grinding high-protein peas and using air classification to isolate a protein-enriched pea composition with at least 60% pea protein content, free from chemical residues, by employing a dry processing technique.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If wet fractionation is used to increase protein content, then protein enrichment is achieved, but chemical residues and loss of native functionality occur
Solution Approach 1:
The patent extracts and removes the harmful chemical processing agents from the protein enrichment process by replacing wet fractionation with dry air classification, thereby achieving protein concentration without introducing chemical residues
Solution Approach 2:
The patent changes the processing parameters from wet chemical fractionation to dry air classification, fundamentally altering the separation mechanism to eliminate chemical involvement while maintaining protein enrichment capability
2Object-affected harmful factors
If dry processing is used to avoid chemicals, then chemical-free production is achieved, but protein content remains too low for many applications
Solution Approach 1:
The patent optimizes dry processing parameters by controlling air classification conditions, particle size distribution, and separation efficiency to achieve protein content ≥60% while maintaining chemical-free production
Solution Approach 2:
The patent performs preliminary grinding and size classification of peas before air classification to optimize the separation efficiency and maximize protein content in the final product
3Object-affected harmful factors
If dry processing is used to avoid chemicals, then chemical-free production is achieved, but process yield is substantially lost
Solution Approach 1:
The patent optimizes air classification parameters including air velocity, particle size distribution, and separation stages to minimize protein loss and maximize process yield while maintaining chemical-free production
Solution Approach 2:
The patent implements feedback control in the air classification process to monitor and adjust separation efficiency, thereby minimizing yield loss and optimizing protein recovery
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 achieves commercially viable yields of high-protein pea compositions with desirable chemical and physical properties, such as higher protein dispersibility index, without the use of chemicals, addressing the inefficiencies of existing methods.
Implementation Method 1
Peas are milled, and the resulting particles are separated into protein- and starch-rich fractions on the basis of physical properties, such as density or size
Data Source
AI summary
The present disclosure relates generally to pea products derived from high protein peas, and more specifically to protein-enriched pea compositions having high protein content and methods of preparing such pea compositions. The present disclosure also relates to uses of the protein-enriched pea compositions in food products.


