Yeast Sphingolipid Production via Cyclodextrin Solubilization
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Solution Overview
Problem
Current methods for producing sphingoid bases and sphingolipids using bioengineering techniques are inefficient, and there is a need for improved production methods that enhance the yield and solubility of these compounds in yeast cultivation.
Innovation Solution
A method involving the use of a culture medium with additives such as cyclodextrin and zeolites to associate with, bind to, and solubilize sphingoid bases and sphingolipids, specifically modifying yeast strains to increase the expression and activity of relevant proteins, and cultivating them in the presence of these additives to enhance production and solubility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional bioengineering methods are used to produce sphingoid bases and sphingolipids in yeast, then production is achieved, but the yield and efficiency are insufficient
Solution Approach 1:
The patent modifies yeast strain parameters by overexpressing specific genes (LCB1, LCB2, TSC10, SUR2, SLI1, ATF2, LAG1, LAC1, LIP1, UGCG) and reducing others (LCB4, LCB5, ELO3, CKA2, ORM2, CHA1, YPC1) to optimize the biosynthetic pathway for sphingoid bases and sphingolipids, thereby improving production efficiency and yield
Solution Approach 2:
The patent introduces cyclodextrins as intermediary substances that form inclusion complexes with sphingoid bases and sphingolipids, enhancing their solubility in the culture medium and facilitating their extraction and purification, which indirectly improves overall production efficiency
2Quantity of substance
If sphingoid bases and sphingolipids are produced in yeast, then these compounds are generated, but their solubility in aqueous media is poor
Solution Approach 1:
Cyclodextrins serve as intermediary molecules that form inclusion complexes with the hydrophobic sphingoid bases and sphingolipids, providing a hydrophilic exterior that enables solubility in aqueous culture media while maintaining the integrity and quantity of the target compounds
Solution Approach 2:
The patent changes the solubility parameter of sphingoid bases and sphingolipids by forming molecular complexes with cyclodextrins, transforming them from water-insoluble compounds to water-soluble complexes that can be easily handled in aqueous environments
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 significantly increases the production and solubility of sphingoid bases and sphingolipids in yeast, allowing for more efficient collection and utilization of these compounds, as demonstrated by increased yields and improved solubility in aqueous media.
Implementation Method 1
an additive that is able to associate with, bind to, solubilize, and/or capture the objective substance
Implementation Method 2
zeolites are microporous, aluminosilicate minerals, and are commonly used as commercial adsorbents and catalysts
Data Source
AI summary
A method for producing an objective substance such as sphingoid bases and sphingolipids using yeast is provided. An objective substance is produced by cultivating yeast having an ability to produce the objective substance in a culture medium containing an additive that is able to associate with, bind to, solubilize, and/or capture the objective substance, and collecting the objective substance from cells of the yeast and/or the culture medium.