Modified 13-Hydroperoxide Lyase Enzyme for Green Notes Production
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Solution Overview
Problem
The existing industrial process for producing 'green notes' compounds, such as n-hexanal and 3-(Z)-hexen-1-al, is limited by the requirement for large quantities of fresh guava fruit, dilute enzyme activities, and high volumes of raw materials, leading to inefficiencies and increased costs.
Innovation Solution
Modified 13-hydroperoxide lyase proteins with altered amino acid sequences, specifically with substitutions and insertions at certain positions, are expressed using recombinant nucleic acid molecules, allowing for improved enzymatic activity, storage stability, and reduced biomass usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fresh guava fruit is used as the source of 13-HPOL enzyme, then the enzyme activity is sufficient for industrial production, but large quantities of fruit are required and the process is limited to growing seasons
Solution Approach 1:
The patent extracts the 13-HPOL enzyme gene from guava fruit and transfers it to a recombinant expression system (E. coli or yeast), separating the enzyme production from the fruit itself. This allows obtaining concentrated enzyme activity without requiring large quantities of fresh fruit, resolving the contradiction between reliable enzyme activity and quantity of fruit required.
Solution Approach 2:
The patent creates a copy of the 13-HPOL enzyme through recombinant DNA technology, where the gene is cloned into expression vectors and produced in host organisms. This synthetic copy provides sufficient enzyme activity for industrial production without depending on the seasonal availability or quantity of natural guava fruit.
2Reliability
If large volumes of raw materials (soy flour, guava puree, yeast) are used to achieve desired enzyme activities, then sufficient catalytic activity is obtained, but the process becomes less efficient and more costly
Solution Approach 1:
The patent extracts and purifies the 13-HPOL enzyme to high specific activity through recombinant expression and purification protocols. This concentrated enzyme preparation eliminates the need to use large volumes of dilute raw materials like guava puree and soy flour, thereby improving process efficiency while maintaining sufficient catalytic activity.
Solution Approach 2:
The patent changes the concentration parameter of the enzyme by producing highly purified recombinant 13-HPOL with specific activity significantly higher than crude extracts. This parameter change allows using much smaller enzyme quantities to achieve the same catalytic effect, improving productivity and reducing raw material requirements.
3Ease of operation
If a large-volume batch process is used to produce green notes, then the process is simple to operate, but maximum catalytic activity is not achieved and large amounts of residual organic material are generated
Solution Approach 1:
The patent extracts and purifies the 13-HPOL enzyme to high specific activity, allowing the use of much smaller, more concentrated reaction volumes. This maintains operational simplicity while dramatically improving catalytic activity utilization, as the purified enzyme works more efficiently in compact reaction systems rather than large-volume batch processes.
Solution Approach 2:
The patent changes the volume parameter from large-volume batch processing to small-volume high-concentration processing. By concentrating the enzyme and substrate, the process achieves maximum catalytic activity utilization in reduced volumes, while still maintaining ease of operation through standardized purification and reaction protocols.
4Reliability
If high concentrations of raw materials are used to ensure sufficient enzyme activity, then catalytic performance is adequate, but the costs of the industrial process increase
Solution Approach 1:
The patent extracts and purifies the 13-HPOL enzyme to high specific activity through recombinant expression systems. This concentrated enzyme preparation provides adequate catalytic performance using minimal enzyme quantities, thereby reducing the costs associated with purchasing and processing large amounts of raw materials like guava fruit, yeast, and soy flour.
Solution Approach 2:
The patent changes the concentration parameter of the enzyme from low (in crude extracts) to high (in purified recombinant form). This parameter change ensures adequate catalytic performance with much smaller enzyme doses, directly reducing the cost of raw materials and improving the overall economics of the industrial process.
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 modified enzymes achieve higher yields and product quality with minimal isomerization, enabling efficient production of 'green notes' compounds while reducing the need for large amounts of guava fruit and other raw materials.
Implementation Method 1
13-hydroperoxide lyase (13-HPOL) into the corresponding C6-aldehyde and C12 ω-oxoacid moiety
Data Source
AI summary
Fatty acid 13-hydroperoxide lyase proteins which have been modified with respect to a previously described guava 13-hydroperoxide lyase and the nucleic acid sequences encoding these proteins. Also, recombinant nucleic acid molecules for expressing the modified 13-hydroperoxide lyases and methods of using such lyases in the field of organic synthesis.