Yeast Bioreactor for Moth Pheromone Synthesis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current chemical synthesis methods for insect pheromones are expensive, environmentally hazardous, and generate significant organic waste, limiting their widespread use in agriculture and forestry due to high production costs and the need for toxic chemicals.
Innovation Solution
Biological production methods using yeast cells expressing specific desaturase and fatty acyl-CoA reductase enzymes to produce (Z)-11-hexadecen-1-ol, (Z)-11-hexadecenal, and (Z)-11-hexadecen-1-yl acetate, which are key components of moth sex pheromones, reducing costs and environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If chemical synthesis methods are used to produce insect pheromones, then pheromones can be produced, but production costs are high and environmental harm increases
Solution Approach 1:
The patent replaces chemical synthesis methods with biological production using yeast cells. The yeast cells express specific enzymes (desaturase and reductase) that catalyze the conversion of fatty acid precursors into pheromone compounds through biochemical reactions, eliminating the need for toxic chemicals, catalyzers, and complex chemical reaction conditions
Solution Approach 2:
The patent changes the production parameters from chemical synthesis conditions (high temperatures, pressures, toxic chemicals) to biological fermentation conditions (ambient temperature, neutral pH, renewable substrates). The engineered yeast cells operate under mild conditions using sugars or plant oils as substrates, fundamentally altering the reaction parameters to achieve greener chemistry
2Ease of manufacture
If chemical synthesis methods are used to produce insect pheromones, then pheromones can be produced, but toxic chemicals and organic waste are generated
Solution Approach 1:
The patent substitutes chemical synthesis with enzymatic catalysis within living cells. The expressed enzymes (desaturase and reductase) perform specific biochemical transformations using mild conditions, eliminating the need for toxic chemicals, catalyzers, and solvents typically required in chemical synthesis
Solution Approach 2:
The yeast cells serve as self-contained bioreactors that perform multiple functions: they synthesize the pheromone pathway intermediates, catalyze the transformations through expressed enzymes, and manage waste internally through their metabolic systems, eliminating the need for external toxic chemicals and complex purification processes
3Productivity
If chemical synthesis methods are used to produce insect pheromones, then pheromones can be produced, but multiple reaction steps and purification are required
Solution Approach 1:
The patent merges multiple chemical reaction steps into a single biological production process. The engineered yeast cells perform fatty acid synthesis, desaturation, and reduction reactions in sequence within their metabolic pathways, eliminating the need for separate reaction vessels, catalyzers, and purification steps
Solution Approach 2:
The yeast cell serves as a universal bioreactor that performs multiple functions simultaneously: it provides the metabolic framework for fatty acid synthesis, expresses and catalyzes desaturation and reduction reactions, and manages product secretion and waste elimination, replacing the need for multiple specialized chemical processing steps
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 biological production method achieves cost-effective and environmentally friendly synthesis of insect pheromones with high titers, overcoming the limitations of chemical synthesis by using renewable materials and minimizing waste and toxicity.
Implementation Method 1
the Δ11-desaturase is capable of converting at least part of said hexadecanoyl-CoA to (Z)11-hexadecenoyl-CoA
Implementation Method 2
said FAR is capable of converting at least part of said (Z)11-hexadecenoyl-CoA to (Z)-11-hexadecenol
Implementation Method 3
providing a yeast cell capable of synthesising hexadecanoyl-CoA
Data Source
AI summary
The present disclosure relates to methods for production of (Z)-11-hexadecen-1-ol in a yeast cell using desaturases and fatty acyl-CoA reductase. Also disclosed are methods for production of (Z)-11-hexadecenal in a yeast cell. Also disclosed are methods for production of (Z)-11-hexadecen-1-yl acetate in a yeast cell. The disclosure also provides for nucleic acid constructs and yeast cells useful for performing the present methods, as well as to pheromone compositions.