Prostaglandin Production via Enzyme-Reducing Agent Merging
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Solution Overview
Problem
The conventional method for producing prostaglandins results in a low yield, necessitating the development of a more efficient production method.
Innovation Solution
A prostaglandin production method involving the reaction of an unsaturated fatty acid with cyclooxygenase in the presence of a reducing agent, such as divalent Sn, Na2SO3, Na2S2O3, Na2S2O4, or KI, to enhance yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a two-step method (oxidation reaction followed by reduction reaction) is used to produce prostaglandins, then the production process can proceed, but the yield of prostaglandins is not high
Solution Approach 1:
The patent combines the oxidation reaction (cyclooxygenase catalyzed) and reduction reaction (SnCl2 mediated) into a single simultaneous reaction system. The cyclooxygenase, unsaturated fatty acid, and SnCl2 are all present together in the reaction mixture, allowing both oxidation and reduction to occur concurrently, thereby simplifying the production process and improving prostaglandin yield.
Solution Approach 2:
The patent optimizes reaction parameters including pH (maintained at alkaline conditions), temperature, and the molar ratios of reactants. Specifically, the use of SnCl2 as a reducing agent with controlled concentration and the maintenance of appropriate pH levels enable the simultaneous oxidation-reduction reaction to proceed efficiently, resolving the contradiction between process simplicity and high yield.
2Productivity
If conventional two-step method is used, then the production process is established, but the yield remains low
Solution Approach 1:
The patent enables continuous simultaneous action of oxidation and reduction reactions in a single reaction system. Instead of completing oxidation first and then reduction in separate steps, both reactions occur continuously and concurrently in the same reaction mixture, eliminating the time loss associated with intermediate isolation and transfer between steps.
Solution Approach 2:
The reducing agent SnCl2 is prepared and positioned in the reaction system before the oxidation reaction begins. This preliminary preparation ensures that when the cyclooxygenase catalyzes the oxidation of unsaturated fatty acid, the reduction to form prostaglandin can immediately occur without delay, maximizing reaction efficiency and yield.
3Productivity
If oxidation reaction is performed in the presence of a reducing agent, then according to conventional knowledge either oxidation or reduction should not proceed, but the patent achieves high yield by defying this expectation
Solution Approach 1:
The patent changes the reaction parameters from conventional conditions by maintaining alkaline pH and using specific enzyme-catalyzed oxidation combined with SnCl2 reduction. These parameter changes create a unique reaction environment where both oxidation and reduction can proceed simultaneously despite conventional wisdom suggesting they would mutually inhibit each other.
Solution Approach 2:
The cyclooxygenase enzyme acts as an intermediary that facilitates the oxidation reaction while the SnCl2 serves as a reducing intermediary. The enzyme system and reducing agent work in concert to enable the simultaneous occurrence of oxidation and reduction reactions, achieving high prostaglandin yield where conventional knowledge predicted reaction failure.
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 prostaglandins at a high yield, overcoming the limitations of conventional methods by utilizing a reducing agent to facilitate the reaction.
Implementation Method 1
cyclooxygenase is reacted (oxidation reaction) with an unsaturated fatty acid to produce PGG2 and/or PGH2
Implementation Method 2
PGG2 and/or PGH2 is reacted (reduction reaction) with the reducing agent SnCl2 to produce prostaglandin
Data Source
AI summary
A prostaglandin production method according to the present invention comprises reacting an unsaturated fatty acid with cyclooxygenase in the presence of a reducing agent. According to the present invention, it is possible to produce prostaglandins at a high yield.