Deoxyketohexose Isomerase Epimerization for Deoxy Monosaccharide Production
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Solution Overview
Problem
There is a strong desire for an efficient method to industrially produce deoxy monosaccharides with minimal steps, and existing methods lack a systematic approach for producing deoxyketohexose and its derivatives.
Innovation Solution
A deoxyketohexose isomerase is used to epimerize 1- or 6-deoxyketohexose, interacting with the enzyme to produce deoxy products at position 3, and a combination of enzymes such as aldose isomerase, polyol dehydrogenase, and aldose reductase, along with chemical reduction processes, are employed to produce deoxy monosaccharides and derivatives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods are used to produce deoxy monosaccharides, then production can be achieved, but the number of steps is large and efficiency is low
Solution Approach 1:
The patent combines multiple enzymatic reactions (isomerization, epimerization, reduction, oxidation) into an integrated production pathway using deoxyketohexose isomerase as the key enzyme. This merging of sequential steps into a coordinated enzymatic system reduces the overall number of discrete production steps while maintaining high productivity in deoxy monosaccharide synthesis.
2Productivity
If a systematic approach is developed for producing deoxyketohexose, then production efficiency improves, but the enzymatic system becomes more complex
Solution Approach 1:
The deoxyketohexose isomerase enzyme system is designed to perform multiple functions including isomerization, epimerization, and facilitating reduction/oxidation reactions. This multi-functionality allows a single enzymatic system to handle various transformations in the deoxyketohexose production pathway, improving productivity while managing system complexity through functional integration.
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 enables the efficient production of deoxy monosaccharides and derivatives, linking deoxy rare sugars in a manner that demonstrates enzymatic oxidation, reduction, or isomerization, facilitating the development of Deoxy-Izumoring for producing deoxy products corresponding to monosaccharides with 6 carbon atoms and derivatives.
Implementation Method 1
a deoxyketohexose isomerase which can interact with free 1- or 6-deoxyketohexose to epimerize the 1- or 6-deoxyketohexose as it remains the free deoxy sugar, to produce a deoxy product resulting from the epimerization at position 3
Implementation Method 2
allowing aldose isomerase to interact with the obtained 6-deoxy D-ketohexose or 6-deoxy L-ketohexose to produce the corresponding 6-deoxy D-aldohexose or 6-deoxy L-aldohexose
Implementation Method 3
allowing polyol dehydrogenase to interact with the obtained 6-deoxy D-ketohexose or 6-deoxy D-aldohexose or 6-deoxy L-ketohexose or 6-deoxy L-aldohexose to produce the corresponding 6-deoxy sugar alcohol
Implementation Method 4
allowing aldose reductase to interact with the obtained 6-deoxy D-ketohexose or 6-deoxy D-aldohexose or 6-deoxy L-ketohexose or 6-deoxy L-aldohexose to produce the corresponding 6-deoxy sugar alcohol
Data Source
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AI summary
Providing 1- or 6-deoxy products corresponding to all of aldohexoses, ketohexoses and sugar alcohols, as based on Deoxy-Izumoring, as well as a method for systematically producing those products. A method for producing deoxyketohexose and a derivative thereof using a deoxyketohexose isomerase derived from Pseudomonas cichorii ST-24 (FERM BP-2736), comprising epimerizing 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose at position 3 to produce the individually corresponding 1-deoxy D-ketohexose or 6-deoxy D-ketohexose or 1-deoxy L-ketohexose or 6-deoxy L-ketohexose as an intended product.