Microbial Heme Protein Expression for Scalable Meat-Like Color and Taste
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Solution Overview
Problem
Vegetarian meat substitutes lack the taste, color, and texture of real meat, and their production poses challenges in scalability and resource utilization, particularly agricultural land and water usage.
Innovation Solution
Genetically modify bacteria, such as E. coli and Cyanobacteria, to express or overexpress heme-containing proteins like HemA, HemL, HemH, and FeoB, enhancing heme production and availability, which can be used to produce meat-like products with improved color and taste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vegetarian meat substitutes are prepared from combination of animal protein and vegetable protein, then the products can be produced, but they lack taste and color and fail to replicate real meat qualities
Solution Approach 1:
The patent introduces heme-containing proteins into the vegetarian meat substitute formulation, fundamentally changing the chemical composition parameter. Heme proteins are responsible for the red color and iron content of meat, and their addition transforms the organoleptic properties of the substitute, enabling it to replicate real meat's appearance and taste while maintaining vegetarian status.
2Productivity
If traditional agricultural methods are used to produce meat substitutes, then large quantities of protein can be produced, but agricultural land and water resources are excessively consumed
Solution Approach 1:
The patent replaces traditional agricultural production systems with microbial fermentation technology. Instead of cultivating plants or raising animals for protein production, the invention uses genetically modified microorganisms (such as yeast or bacteria) that can be cultivated in controlled fermentation vessels. This substitution eliminates the need for extensive agricultural land and water resources while maintaining high protein production capacity.
Solution Approach 2:
The patent fundamentally changes the production method from agricultural-based to biotechnology-based. By using microbial systems with optimized growth conditions, the invention achieves high protein yield per unit volume and time, dramatically reducing the land area required compared to traditional farming methods.
3Manufacturing precision
If heme-containing proteins are introduced to improve color and taste, then the meat substitute quality improves, but the production scalability becomes more challenging
Solution Approach 1:
The patent employs self-service principles by using microorganisms that can autonomously synthesize heme-containing proteins through their metabolic pathways. The microbial systems naturally produce the heme proteins as part of their growth and metabolism, eliminating the need for complex external heme protein supply chains or additional purification steps, thereby maintaining scalability while ensuring consistent product quality.
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 modified bacteria produce heme-containing proteins that enhance the color and taste of vegetarian meat substitutes, enabling large-scale production without excessive agricultural land use and resource consumption.
Implementation Method 1
genetically modified bacteria, such as E. coli and Cyanobacteria, to express or overexpress heme-containing proteins like HemA, HemL, HemH, and FeoB, enhancing heme production
Data Source
AI summary
The present disclosure relates to genetically modified bacteria, wherein said genetically modified bacteria is designed to express or overexpress a heme-containing protein. Said protein is optionally expressed or overexpressed in combination with one or more enzymes that catalyze the heme synthesis pathway. Said genetically modified organism allows scalable production of heme-containing protein with the advantage that the expressed protein remains in soluble form without forming inclusion bodies.