Microbial Protein Concentrate via A. pullulans Fermentation
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Solution Overview
Problem
The aquaculture industry faces challenges in sustainability due to the high demand for fish meal, which is derived from wild capture fisheries, and current plant-derived protein sources like soybean meal and soy protein concentrate have limitations such as high costs, environmental concerns, and inability to fully replace animal proteins in fish diets, especially for carnivorous marine fishes due to amino acid deficiencies.
Innovation Solution
A microbially-based system that converts plant material into a high-quality, digestible protein concentrate with a microbial gum binder, using A. pullulans to produce a protein concentrate with at least 65-75% protein content, suitable for animal feed and human consumption, which can replace up to 80% of fish meal in aquaculture diets, improving growth rates and feed efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If plant-derived protein sources (soybean meal, soy protein concentrate) are used to replace fish meal, then cost and sustainability are improved, but amino acid profile quality deteriorates due to deficiencies in critical amino acids like taurine
Solution Approach 1:
The patent applies parameter changes by fermenting plant-based protein sources with specific microorganisms to modify the amino acid profile. This biological transformation process alters the chemical composition of the protein, enhancing critical amino acids like taurine while maintaining overall protein content, thereby resolving the contradiction between quantity and quality
Solution Approach 2:
The invention creates a composite protein product by combining fermented plant-based proteins with microbial cell mass. This composite approach integrates the high protein content of plant sources with the superior amino acid profile and functional properties of microbial proteins, achieving both cost-effectiveness and nutritional quality
2Reliability
If solvent extraction process is used to produce soy protein concentrate, then protein bioavailability is improved by removing anti-nutritional factors, but environmental harm increases due to chemical waste disposal issues
Solution Approach 1:
The patent replaces the chemical solvent extraction mechanism with a biological fermentation process. Instead of using hexane or other chemicals to remove anti-nutritional factors, the system employs microorganisms that biodegrade these factors through enzymatic action, eliminating chemical waste while maintaining protein bioavailability through microbial protein synthesis
Solution Approach 2:
The invention converts the harmful anti-nutritional factors present in raw plant materials into beneficial components through fermentation. The microbial process transforms potentially harmful substances into useful microbial cell mass and metabolites that enhance protein quality, turning a harmful characteristic into a beneficial one
3Reliability
If traditional animal protein sources are used, then amino acid profile quality is maintained, but sustainability deteriorates due to dependence on wild capture fisheries and high costs
Solution Approach 1:
The patent introduces microbial cell mass as an intermediary protein source between plant-based materials and animal protein requirements. The microorganisms serve as a mediator that converts plant-based carbon and nitrogen sources into high-quality microbial proteins with complete amino acid profiles, eliminating the need for direct reliance on wild fish stocks
Solution Approach 2:
The system applies self-service by using microbial processes to autonomously synthesize high-quality proteins from plant-based feedstocks. The microbial culture self-regulates the protein synthesis process, converting available plant nutrients into complete protein products without requiring external animal protein inputs, thereby achieving sustainability
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 system provides a sustainable, cost-effective protein source that enhances the nutritional value and bioavailability of plant-based materials, supporting the health and growth of fish and shrimp, and reduces environmental impact by minimizing waste and resource usage.
Implementation Method 1
A microbially-based system that converts plant material into a high-quality, digestible protein concentrate with a microbial gum binder, using A. pullulans to produce a protein concentrate
Implementation Method 2
A microbially-based system that converts plant material into a high-quality, digestible protein concentrate with a microbial gum binder
Implementation Method 3
enhances the nutritional value and bioavailability of plant-based materials
Data Source
AI summary
The present invention describes a bio-based process to produce high quality protein concentrate (HQPC) by converting plant derived celluloses and carbohydrates into bioavailable protein via aerobic incubation, including the use of such HQPC so produced as a nutrient, including use as a fish meal replacement in aquaculture diets.