Aptamer-Based Flavor Compound Isolation
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Solution Overview
Problem
Current methods for isolating flavor and fragrance compounds on a preparative scale face challenges due to the limitations of antibodies, such as high production costs, batch-to-batch variations, and susceptibility to pH and temperature changes, as well as the difficulty in isolating small, volatile molecules like those found in flavor and fragrance compounds.
Innovation Solution
The use of aptamers immobilized on supports like magnetic particles, organic polymers, or monolithic materials for specific binding and subsequent isolation of target flavor and fragrance compounds, allowing for efficient capture and release under controlled conditions, enabling high-purity isolation on both laboratory and industrial scales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If antibodies are used for isolation, then specificity is improved, but production cost and batch-to-batch variation increase
Solution Approach 1:
The patent uses aptamers as synthetic copies that mimic the binding function of antibodies. These aptamers are selected through SELEX to specifically bind target flavor compounds, providing antibody-like specificity without the biological production requirements. The aptamers are synthesized chemically or through in vitro selection, eliminating the need for animal immunization and cell culture processes.
Solution Approach 2:
The patent employs aptamers that can be produced more cheaply than antibodies through chemical synthesis or in vitro selection processes. While individual aptamers may have limited stability, the overall system is more cost-effective because the capture agents can be regenerated and reused multiple times, and the initial production cost is significantly lower than antibody manufacturing.
2Measurement precision
If antibodies are used for isolation, then specificity is improved, but stability against pH and temperature changes worsens
Solution Approach 1:
The patent replaces biological antibodies with synthetic aptamers that copy the specific binding function. These aptamers are nucleic acid sequences selected through SELEX to bind target compounds with high specificity. Being non-biological, they lack the structural complexity and sensitivity of antibodies, making them stable under a broader range of pH and temperature conditions.
Solution Approach 2:
The patent utilizes the inherent chemical stability of nucleic acid aptamers compared to protein-based antibodies. The aptamers maintain their binding capability across wider pH ranges and temperature conditions, allowing the isolation process to be performed under more varied and often more effective conditions for flavor compound recovery.
3Ease of manufacture
If traditional extraction methods are used, then production cost is reduced, but isolation purity and efficiency worsen
Solution Approach 1:
The patent introduces aptamers as selective intermediary agents between the complex flavor mixture and the target compounds. These aptamers specifically recognize and bind to desired flavor molecules through molecular imprinting, acting as mediators that enable high-purity isolation without requiring expensive traditional chromatographic methods. The aptamers can be immobilized on inexpensive support materials.
Solution Approach 2:
The patent employs porous support materials for immobilizing aptamers, providing high surface area for binding while maintaining low cost. The porous structure allows efficient mass transfer and binding of target compounds, achieving high isolation purity through the combination of aptamer specificity and the physical advantages of porous media.
4Productivity
If aptamers are used for isolation, then recovery yield is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential binding function from complex biological systems, using simplified aptamer molecules that can be produced through in vitro selection. This extracted approach eliminates the need for complex cell culture and purification infrastructure, achieving high recovery yields with simpler equipment requirements compared to antibody-based methods.
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 achieves high yields (up to 100% recovery) of target compounds with minimal contamination, overcoming the limitations of traditional methods by utilizing aptamers' stability and specificity, even for small and volatile molecules, and allowing for the reuse of capture agents, reducing production costs.
Implementation Method 1
specific molecular recognition by nucleic acid motifs has gained a wide therapeutic and analytic scope. Aptamer sequences are used as biosensors
Implementation Method 2
The support being preferably selected from the group consisting of magnetic particles, organic polymers, inorganic polymers, bio-polymers, membrane adsorbers and monolithic materials
Data Source
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AI summary
The present invention relates to a method for isolating target flavor compounds or fragrance compounds or flavor and/or fragrance modifying compounds on a preparative scale using specific aptamers being preferably covalently immobilized on a support.