Tri-substituted Starch Esters for Nutritional SCFA Delivery
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Solution Overview
Problem
Current modified starch compositions that attach short-chain fatty acids (SCFAs) to starch molecules often require the use of solvents like DMSO, which is undesirable in nutritional applications, and may not effectively deliver superior levels of SCFAs to the colon, failing to address metabolic and autoimmune disorders effectively.
Innovation Solution
Development of tri-substituted starch esters that incorporate multiple short-chain fatty acids such as acetate, propionate, and butyrate without the use of DMSO, achieved through a process involving mixing starch with these acids and an esterification catalyst, resulting in a composition that enhances SCFA production by colon microbes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If starch is modified to attach short-chain fatty acids using conventional methods, then SCFA attachment is achieved, but DMSO solvent is required which is undesirable in nutritional applications
Solution Approach 1:
The patent removes DMSO from the esterification process by using alternative solvents (ethanol, isopropanol, acetone, or water) that are safe for nutritional applications. This extracts the harmful element while preserving the core function of SCFA attachment to starch molecules through esterification catalyzed by enzymes or chemical catalysts in the alternative solvent system
Solution Approach 2:
The patent introduces alternative solvents as intermediary substances to facilitate the esterification reaction between starch and SCFAs. These intermediary solvents (ethanol, isopropanol, acetone, or water) replace DMSO as the reaction medium, enabling the chemical modification to proceed while ensuring the final product is safe for nutritional use
2Reliability
If starch is modified with multiple SCFAs of different lengths, then superior SCFA delivery to colon is achieved, but the synthesis becomes more complex
Solution Approach 1:
The patent combines multiple different SCFAs (acetate, propionate, butyrate, and/or valerate) into a single starch modification process. By attaching multiple SCFA types simultaneously to the starch backbone through esterification, the patent creates a multi-functional molecule that delivers superior SCFA diversity to the colon while using a unified synthesis approach rather than separate modifications
Solution Approach 2:
The patent creates starch molecules with universal multi-functionality by attaching multiple types of SCFAs to a single starch backbone. This multi-functional starch ester can simultaneously provide acetate, propionate, butyrate, and/or valerate delivery, making a single compound that performs multiple SCFA delivery functions rather than requiring separate starch modifications for each SCFA type
3Ease of manufacture
If conventional esterification methods are used to attach SCFAs to starch, then modification is achieved, but the process requires DMSO which limits nutritional applications
Solution Approach 1:
The patent changes the solvent parameter of the esterification reaction from DMSO to nutritionally acceptable alternatives (ethanol, isopropanol, acetone, or water). This parameter change in the reaction medium maintains the ease of starch modification through esterification while adapting the process to be suitable for nutritional applications by using safe, edible solvents that do not compromise the health benefits of the final product
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 tri-substituted starch esters effectively increase the levels of SCFAs in the colon, providing therapeutic benefits for disorders like obesity, diabetes, and inflammatory bowel disease by promoting gut health and immune function without the presence of DMSO.
Implementation Method 1
a starch material modified to form ester bonds with multiple short chain fatty acids (SCFA) of different lengths
Data Source
AI summary
Disclosed herein are compositions containing a modified starch, the starch modified to contain ester linkages to multiple short-chain fatty acids of different lengths; in particular, containing linkages to acetate, propionate, and butyrate. Methods for making and using such starch esters are described, as are compositions including the starch ester for nutritional effects and health benefits.