Co-culturing Microorganisms for Demethylation Efficiency
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Solution Overview
Problem
Current methods lack an efficient technique for promoting the elimination of methyl groups from methoxy groups in compounds with side chains, which are essential for producing demethylated compounds with beneficial biological activities.
Innovation Solution
A method involving co-culturing microorganisms with demethylation ability, such as lactic acid bacteria and specific strains of Eubacterium, in a solution containing compounds with methoxy groups, to produce demethylated compounds by eliminating methyl groups from methoxy groups in side chains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single microorganism with demethylation ability is used, then the demethylation process can occur, but the elimination of methyl groups is not efficient enough
Solution Approach 1:
The patent combines multiple microorganisms with different functions into a co-culture system. Specifically, it uses a microorganism with demethylation ability (e.g., Eubacterium limosum) together with lactic acid bacteria (e.g., Lactobacillus plantarum) that regenerate tetrahydrofolic acid. This merging of functional microorganisms enhances overall demethylation efficiency while maintaining process feasibility through natural microbial interactions.
Solution Approach 2:
The lactic acid bacteria act as an intermediary that regenerates tetrahydrofolic acid, which is a crucial cofactor for the demethylation process. By introducing this intermediary microorganism, the system ensures adequate supply of the necessary cofactor, thereby improving demethylation efficiency without requiring direct modification of the primary demethylating microorganism.
2Manufacturing precision
If chemical demethylation methods are used, then methyl groups can be eliminated, but the process lacks selectivity and may affect other functional groups
Solution Approach 1:
The patent replaces chemical demethylation methods with a biological system using microorganisms. The microbial enzymes provide high selectivity for demethylating methoxy groups while leaving other functional groups intact. This substitution of chemical processes with biological processes achieves superior selectivity without requiring complex process control mechanisms.
Solution Approach 2:
The patent utilizes the specific enzymatic parameters of microbial systems to achieve selective demethylation. By controlling culture conditions such as pH, temperature, and nutrient composition, the system optimizes the activity of demethylating enzymes while maintaining selectivity for methoxy groups over other potential reaction sites.
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 effectively promotes the production of demethylated compounds, enhancing their biological activities and providing a useful microorganism for demethylation processes.
Implementation Method 1
a microorganism having a demethylation ability of eliminating a methyl group(s) of a methoxy group(s) from a compound with the methoxy group(s) in a side chain(s)
Data Source
AI summary
An object of the present disclosure is at least to provide a technique for promoting elimination of a methyl group(s) of a methoxy group(s) in causing a microorganism having a demethylation ability of eliminating a methyl group(s) of a methoxy group(s) from a compound with the methoxy group(s) in a side chain(s) to produce a demethylated compound in which a methyl group(s) of a methoxy group(s) has eliminated from a compound with the methoxy group(s) in a side chain(s). The issue is solved by a method for producing a demethylated compound, comprising co-culturing, in a solution containing a compound with a methoxy group(s) in a side chain(s), a microorganism having a demethylation ability of eliminating a methyl group(s) of a methoxy group(s) from a compound with the methoxy group(s) in a side chain(s), and a microorganism having an activity to promote the demethylation, to produce the demethylated compound in which a methyl group(s) of a methoxy group(s) has eliminated from the compound with the methoxy group(s) in the side chain(s).