Microbial Heme-Iron Production via 5-ALA Enzyme Engineering
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Solution Overview
Problem
Current iron supplements, such as inorganic iron compounds, have low absorption rates and can cause side effects like iron poisoning, while heme-iron from animal sources pose safety risks due to disease transmission and inefficiencies in protein extraction.
Innovation Solution
A method for biologically producing heme-iron through microorganism cultivation by increasing the activity or expression of enzymes involved in 5-aminolevulinic acid synthesis, using recombinant microorganisms like E. coli or yeast, which allows for safe and efficient production of heme-iron as an iron supplement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If inorganic iron compounds are used as iron supplements, then iron content is high and cost is low, but absorption rate is low and iron poisoning may occur
Solution Approach 1:
The invention changes the chemical form of iron from inorganic compounds to heme-iron produced by microorganisms. This parameter change transforms iron into a form that mimics natural heme structure, thereby improving absorption rate while maintaining high iron content and安全性
Solution Approach 2:
The invention creates a copy of natural heme-iron structure through microbial biosynthesis. By engineering microorganisms to produce heme-iron identical to that found in animal products, the invention achieves high absorption rates without the safety risks associated with animal-derived heme-iron
2Reliability
If heme-iron is isolated from animal blood, then absorption rate is high, but safety issues arise due to disease transmission risk and excessive protein intake
Solution Approach 1:
The invention introduces microorganisms as an intermediary system to produce heme-iron. These engineered microorganisms serve as a safe intermediary that can synthesize heme-iron without the disease transmission risks associated with animal blood, while still providing the high absorption benefits of heme-iron
Solution Approach 2:
The invention creates a copy of animal-derived heme-iron through microbial biosynthesis. By replicating the heme-iron structure and production pathway in microorganisms, the invention achieves the same high absorption rates without the harmful factors associated with animal sources
3Reliability
If heme-iron is produced by increasing 5-ALA production in microorganisms, then safe and efficient heme-iron can be produced, but process complexity increases
Solution Approach 1:
The invention segments the heme-iron biosynthesis pathway into manageable steps, focusing on enhancing 5-ALA production as the rate-limiting step. By targeting specific enzymes in the pathway and using modular genetic engineering approaches, the complex biosynthesis process is divided into controllable segments that can be optimized independently
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 the economical production of heme-iron with high absorption rates and reduced side effects, providing a safe and efficient iron supplement for both humans and animals.
Implementation Method 1
The biosynthesis pathway of heme-iron has been well studied. Heme-iron is known to be synthesized by the following pathway: cyclic tetrapyrrole ring is formed from eight 5-aminolevulinic acid (5-ALA); side chains are transformed; and then reduced iron is combined thereto.
Data Source
AI summary
The present invention relates to a method for biologically producing heme-iron through microorganism cultivation, and to an iron supplementing composition containing the heme-iron produced by the same. The present invention provides a method for biologically producing heme-iron through microorganism cultivation, making it possible to economically produce heme-iron or heme-iron preparations which can be safely used as an iron supplement.