Microbial TAG Composition With SCFAs for Animal-Fat-Like Function
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Solution Overview
Problem
There is a need for alternative, non-animal sources of lipids that have animal-fat like composition and functional properties for human nutrition, as current plant-based alternatives often lack the flavor, lubricity, and texture provided by animal fats.
Innovation Solution
Production of microbial cells comprising triacylglycerols (TAG) with short chain fatty acids (SCFA) esterified at the sn-1/3 position, using microbial cells such as Saccharomyces cerevisiae, which are cultured in media containing butyrate to enhance SCFA production, and extracting the lipid from these cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If plant-based fats are used as alternatives to animal fats, then environmental sustainability is improved, but flavor, lubricity, and texture are worsened
Solution Approach 1:
The patent applies local quality by specifically modifying the fatty acid composition at particular positions (sn-1 and sn-3) of the TAG molecules. By placing SCFAs at these specific positions rather than uniformly distributing them, the invention creates localized compositional differences that mimic animal fat properties while maintaining plant-based sustainability.
Solution Approach 2:
The invention changes the chemical parameters of the lipid by controlling the fatty acid composition, specifically ensuring SCFAs constitute 2-20% of total fatty acids and are positioned at sn-1 and/or sn-3 positions. This parameter control transforms plant-based lipids to have animal-fat-like functional properties.
2Adaptability or versatility
If current plant oil blends are used to replace animal fats, then non-animal sourcing is improved, but inadequate flavor and function are worsened
Solution Approach 1:
The patent creates a composite lipid structure by combining SCFAs with other fatty acids in specific proportions and positions within TAG molecules. This composite approach at the molecular level produces a material that delivers both non-animal sourcing and reliable animal-fat-like flavor and function.
3Manufacturing precision
If microbial cells are engineered to produce TAG with SCFA at sn-3 position, then lipid composition control is improved, but production complexity is worsened
Solution Approach 1:
The patent uses microbial cells as intermediary systems to achieve precise control over SCFA positioning. Instead of direct chemical synthesis, the invention employs engineered microorganisms as mediators that naturally produce the desired TAG structure through metabolic pathways, simplifying the overall process despite the engineering complexity.
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 resulting lipid mimics the functional properties of animal fats, providing a sustainable and environmentally friendly alternative with controlled SCFA distribution and composition, suitable for use in food, feed, and beverage products.
Implementation Method 1
microbial cells which comprise triacylglycerol (TAG) molecules... cultured in media containing butyrate to enhance SCFA production
Implementation Method 2
extracting the lipid from these cells
Data Source
AI summary
The present invention relates to microbial cells comprising triacylglycerol (TAG) with short chain fatty acids (SCFA), as well as methods of using these cells to produce lipid comprising TAG with SCFAs.