Chitosan-Lecithin Microparticles for Cholesterol Reduction
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Solution Overview
Problem
Conventional methods for reducing cholesterol levels in animals, such as chickens, often result in adverse side effects and are not cost-effective, and chitosan's effectiveness is limited due to its inability to absorb non-emulsified fats in the stomach and its rapid dissolution in acidic conditions, which reduces its availability for cholesterol binding in the small intestine.
Innovation Solution
A mixture of hydrophobic composite particles is created by chemically binding chitosan to an anionic or non-ionic surfactant like lecithin, forming particles that are stable in the stomach and soluble in the small intestine, allowing for effective binding and removal of bile acids, thereby reducing cholesterol levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chitosan is used to reduce cholesterol, then cholesterol binding capability is improved, but effectiveness is limited due to rapid dissolution in acidic conditions and inability to absorb non-emulsified fats
Solution Approach 1:
The patent creates composite microparticles combining chitosan with lipids (such as phospholipids, triglycerides, or cholesterol esters) to form a stable structure that resists dissolution in acidic conditions while maintaining cholesterol binding capability. This composite approach allows the chitosan to retain its functional properties without the drawbacks of rapid dissolution.
Solution Approach 2:
The patent modifies the physical and chemical parameters of chitosan by controlling its molecular weight, degree of acetylation, and particle size, and by combining it with lipids to change its solubility and stability characteristics. These parameter changes enable the chitosan to remain stable in acidic environments while maintaining its cholesterol binding function.
2Reliability
If chitosan is used to bind bile acids, then cholesterol reduction is improved, but cost-effectiveness deteriorates compared to conventional methods
Solution Approach 1:
The patent utilizes chitosan, a naturally occurring polysaccharide derived from crustacean shells, as a low-cost alternative to conventional cholesterol-lowering drugs. The composite microparticle formulation enhances the effectiveness of this inexpensive material, making it a cost-effective solution for cholesterol reduction without requiring expensive pharmaceutical interventions.
Solution Approach 2:
By optimizing the composition, particle size, and formulation parameters of the chitosan-lipid composite microparticles, the patent enhances the bioavailability and effectiveness of chitosan, thereby improving the cost-effectiveness ratio. The formulation allows for efficient cholesterol binding with minimal material usage.
3Reliability
If chitosan is used to absorb fats, then cholesterol binding is improved, but effectiveness is reduced due to inability to absorb non-emulsified fats in the stomach
Solution Approach 1:
The patent combines chitosan with lipids to create composite microparticles that can absorb non-emulsified fats in the stomach environment. The lipid component of the composite structure enables the particles to interact with and absorb fats, while the chitosan provides cholesterol binding capability. This composite approach overcomes the limitation of chitosan alone in absorbing fats under acidic conditions.
Solution Approach 2:
The lipid component acts as an intermediary that facilitates fat absorption by chitosan in the stomach. The lipid-lipid interactions and hydrophobic effects enable the chitosan-lipid composite to absorb non-emulsified fats, while the chitosan subsequently binds the absorbed fats and cholesterol in the small intestine. This intermediary mechanism resolves the contradiction between fat absorption capability and acidic environment resistance.
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 chitosan-lecithin composite particles effectively bind and remove bile acids in the small intestine, leading to a significant reduction in LDL cholesterol levels and an improved HDL/LDL ratio without adverse effects, making them a viable and efficient solution for cholesterol reduction in animals.
Implementation Method 1
a positively charged polymer (e.g. a polysaccharide such as chitosan) chemically bound to an anionic or non-ionic surfactant such as lecithin
Implementation Method 2
The chitosan-lecithin composite particles effectively bind and remove bile acids in the small intestine
Implementation Method 3
forming particles that are stable in the stomach and soluble in the small intestine
Data Source
AI summary
The present invention relates to mixtures including hydrophobic microparticles comprising a positively charged polymer (e.g. a polysaccharide such as chitosan) non-covalently bound to an anionic or non-ionic surfactant such as lecithin. The mixtures are useful for reducing cholesterol of an animal, for example a bird such as a chicken or any type of mammal. Methods of manufacture and use of the mixtures are also disclosed herein.