Engineered Microbial Triterpenoid Production for High-Purity Mogroside V
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Solution Overview
Problem
The existing methods for producing mogroside V, a high-intensity natural sweetener from monkfruit, face challenges due to low plant yields, specific cultivation requirements, and purification difficulties, resulting in impure commercial products with off-flavors and limited availability.
Innovation Solution
A recombinant microbial process using engineered host cells, such as E. coli, to produce mogrol glycosides through a heterologous enzyme pathway involving FPPS, SQS, SQE, triterpene cyclase, and UGT enzymes, enabling the biosynthesis of mogroside V and other triterpenoids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If extraction methods are used to obtain mogrosides from monkfruit, then some mogroside product can be obtained, but the product has varying purity, undesirable aftertaste, and limited availability
Solution Approach 1:
The patent replaces the mechanical extraction process with a microbial biosynthesis system. Engineered microorganisms (such as yeast or bacteria) are used to produce mogroside V through metabolic pathways, eliminating the need for fruit extraction and purification processes that result in impure products with off-flavors.
Solution Approach 2:
The patent changes the production parameters from agricultural cultivation parameters to microbial fermentation parameters. By controlling microbial growth conditions, substrate feeding rates, and enzymatic pathways, the process achieves consistent high-purity mogroside V production without the variability inherent in plant-based extraction.
2Quantity of substance
If traditional extraction methods are used, then mogrosides can be obtained from fruit, but purification difficulties limit purity and commercial success
Solution Approach 1:
The patent substitutes the complex mechanical and chemical purification process with a straightforward microbial fermentation system. The microorganism produces mogroside V directly in the culture medium, allowing for simple separation through filtration or extraction without complex purification steps required for plant extracts.
Solution Approach 2:
The patent extracts the mogroside production function from the plant kingdom and transfers it to microorganisms. This allows the complex glycosylation pathway to be performed in a controlled microbial system, separating the production process from the problematic plant material and its associated purification challenges.
3Reliability
If plant cultivation methods are used, then mogrosides can be produced naturally, but low plant yields and specific cultivation requirements limit scalability
Solution Approach 1:
The patent replaces agricultural cultivation with microbial fermentation technology. The engineered microorganisms can be grown in controlled bioreactors with standardized protocols, eliminating the variability and low yields associated with monkfruit cultivation while maintaining natural production through biochemical pathways.
Solution Approach 2:
The patent changes the scale of production from agricultural scale to industrial fermentation scale. Microbial systems can be rapidly scaled up in bioreactors, allowing for high-volume production that overcomes the limited yield per hectare of monkfruit cultivation while maintaining 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
This method allows for the production of high-purity mogroside V with improved solubility and ease of formulation, overcoming the limitations of traditional extraction methods by providing a scalable and efficient biotechnological route.
Implementation Method 1
a heterologous enzyme pathway catalyzing the conversion of isopentenyl pyrophosphate (IPP) and/or dimethylallyl pyrophosphate (DMAPP) to one or more triterpenoid compounds
Implementation Method 2
providing a recombinant microbial host cell expressing a heterologous enzyme pathway catalyzing the conversion of isopentenyl pyrophosphate (IPP) and/or dimethylallyl pyrophosphate (DMAPP) to one or more triterpenoid compounds
Data Source
AI summary
The present invention provides host cells and methods for making mogrol glycosides, including Mogroside V (Mog. V), Mogroside VI (Mog. VI), Iso-Mogroside V (Isomog. V), and glycosylation products that are minor products in Siraitia grosvenorii. The invention provides engineered enzymes and engineered host cells for producing mogrol glycosylation products, such as Mog. V, Mog. VI, and Isomog. V, at high purity and/or yield. The present technology further provides methods of making products containing mogrol glycosides, such as Mog. V, Mog. VI, and Isomog. V, including food products, beverages, oral care products, sweeteners, and flavoring products.