Genetically Modified Yeast for High-Yield CBDa Biosynthesis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of cannabinoids, such as cannabidiolic acid (CBDa), in preparative amounts and high yield has been challenging due to inefficiencies in existing methods.
Innovation Solution
Genetically modified yeast cells are engineered to express enzymes of the cannabinoid biosynthetic pathway, including acyl-activating enzyme, tetraketide synthase, cannabigerolic acid synthase, and CBDa synthase, allowing for biochemical synthesis and high-yield production of CBDa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional cannabinoid production methods are used, then production is possible, but yield and efficiency are low
Solution Approach 1:
The patent uses yeast cells as a living factory intermediary to produce cannabinoids. The yeast is genetically modified to express plant-derived enzymes (AAE, TKS, CBGaS, CBDaS) that catalyze the biosynthetic pathway from terpenoid precursors to CBDa, thereby mediating the transformation from simple chemical precursors to complex cannabinoid products with high efficiency and selectivity
Solution Approach 2:
The patent optimizes multiple parameters including enzyme expression levels, culture conditions (temperature, pH, aeration), precursor concentrations, and induction timing to maximize CBDa yield. The two-stage fermentation process with controlled induction at specific optical density values represents parameter optimization to achieve high productivity while maintaining ease of manufacture
2Quantity of substance
If high-yield cannabinoid production is pursued, then preparative amounts can be obtained, but production efficiency decreases
Solution Approach 1:
The patent employs a two-stage fermentation process with periodic induction. The first stage involves growth of yeast cells to a specific optical density, followed by induction of enzyme expression. After a production phase, a second induction can be applied. This periodic action allows the system to accumulate biomass first, then efficiently convert precursors to CBDa, achieving both high quantity and high productivity
Solution Approach 2:
The yeast cells are pre-cultured and conditioned before induction, allowing optimal biomass accumulation and metabolic preparation. The precursors are also prepared and added at optimized concentrations before the induction phase, ensuring that when enzyme expression is induced, the system is primed for maximum efficient production of large quantities of CBDa
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 enables efficient and selective production of CBDa, overcoming previous challenges by utilizing genetically modified yeast cells to express specific enzymes, resulting in improved yield and purity.
Implementation Method 1
the host cell may be modified to express one or more enzymes of a cannabinoid biosynthetic pathway, such as an acyl-activating enzyme (AAE), a tetraketide synthase (TKS), a cannabigerolic acid synthase (CBGaS), a geranyl pyrophosphate (GPP) synthase, and/or a CBDa synthase (CBDaS)
Data Source
AI summary
The present disclosure features compositions and methods for producing one or more cannabinoids, such as cannabidiolic acid (CBDa), in a host cell, such as a yeast cell, that is genetically modified to express the enzymes of a cannabinoid biosynthetic pathway. Using the compositions and methods of the present invention, the host cell may be genetically modified to express one or more enzymes of a cannabinoid biosynthetic pathway, such as an enzyme having CBDa synthase (CBDaS) activity.