Lysine Salt Omega-3 Stabilization via Spray Drying
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Solution Overview
Problem
Polyunsaturated fatty acids (PUFAs) are prone to oxidative deterioration, leading to nutritional and organoleptic issues such as rancidity, off-flavors, and color changes, which current stabilization methods like antioxidants, microencapsulation, and modified atmosphere packaging do not fully address, especially in food and pharmaceutical products.
Innovation Solution
A process involving the formation of salts between lysine and polyunsaturated omega-3 fatty acids through spray drying, resulting in a solid product composition with low solvent content, which enhances oxidative stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polyunsaturated omega-3 fatty acids are used in food and pharmaceutical products, then health benefits are provided, but oxidative stability deteriorates leading to rancidity and off-flavors
Solution Approach 1:
The invention changes the chemical form of polyunsaturated omega-3 fatty acids from free fatty acids or esters to salt forms (specifically lysine salts). This parameter change in molecular structure fundamentally alters the oxidation resistance, transforming highly oxidizable compounds into oxidation-stable salts that do not suffer from rancidity or off-flavor development during storage.
2Reliability
If antioxidants are added to stabilize PUFAs, then oxidative deterioration is reduced, but product complexity and cost increase
Solution Approach 1:
The invention makes the polyunsaturated omega-3 fatty acid itself self-protecting by converting it to a salt form that inherently resists oxidation. The lysine salt structure provides built-in stability without requiring external antioxidants or preservatives, thereby simplifying the overall product formulation and eliminating the need for additional stabilization ingredients.
3Reliability
If microencapsulation is used to protect PUFAs, then oxidative stability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
Rather than physically enclosing the PUFAs in capsules or matrices, the invention chemically transforms them into oxidation-stable salt forms. This parameter change eliminates the need for complex encapsulation processes, specialized equipment, and multi-step manufacturing procedures while achieving equivalent or superior protection against oxidation.
4Reliability
If modified atmosphere packaging is applied, then oxidation is reduced, but packaging complexity and cost increase
Solution Approach 1:
The lysine salt form of polyunsaturated omega-3 fatty acids provides inherent oxidation resistance that does not depend on external packaging conditions. This self-protecting property eliminates the need for modified atmosphere packaging, vacuum sealing, or other complex packaging systems, allowing the use of simple, conventional packaging while maintaining product stability.
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 process significantly increases the oxidative stability of polyunsaturated omega-3 fatty acids, as measured by induction time in the Rancimat test and other oxidation metrics, reducing the need for additional antioxidants and allowing for the production of stable food, nutritional, and pharmaceutical products.
Implementation Method 1
admixing aqueous, aqueous-alcoholic or alcoholic solutions of starting composition and lysine composition, and subjecting resulting admixture to spray drying conditions subsequently, thus forming a solid product composition comprising at least one salt of a cation derived from lysine with an anion derived from a polyunsaturated omega-3 fatty acid
Implementation Method 2
subjecting resulting admixture to spray drying conditions subsequently, thus forming a solid product composition
Data Source
AI summary
A solid product composition includes at least one salt of a cation derived from lysine with an anion derived from a polyunsaturated omega-3 fatty acid. The solid product composition is formed by (i) providing a starting composition containing at least one polyunsaturated omega-3 fatty acid component; (ii) providing a lysine composition; and (iii) admixing an aqueous, an aqueous-alcoholic or an alcoholic solution of starting composition and lysine composition, and subjecting resulting admixture to spray drying conditions subsequently, thus forming the solid product composition containing at least one salt of a cation derived from lysine with an anion derived from a polyunsaturated omega-3 fatty acid.