Metal Amino Acid Chelate Quantification for Stability Control

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Solution Overview

Problem

Existing methods for synthesizing metal amino acid chelates lack analytical controls, leading to unstable products with varying effectiveness and high production costs due to uncontrolled reactions, and the interaction with phytic acid in animal diets reduces metal bioavailability.

Innovation Solution

A process for quantifying bound and unbound metal content using high-performance liquid chromatography (HPLC) and X-ray diffraction (XRD) to analyze metal amino acid chelates in solutions and solids, adjusting pH to simulate physiological conditions, and comparing X-ray patterns with reference databases to determine stability and solubility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If analytical controls are not implemented in the synthesis process, then production costs remain high due to instability and batch variability, but implementing analytical controls increases manufacturing complexity and cost

Engineering Contradiction:
Improvestability of amino acid chelatesVSAvoidanalytical control systems
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by establishing analytical controls at the synthesis stage to prevent instability issues before they manifest in final product variability. HPLC and XRD analyses are performed during synthesis to ensure proper chelate formation, preventing the need for costly remediation later.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback mechanisms through continuous analytical monitoring of the synthesis process. HPLC quantifies amino acid chelate formation while XRD monitors crystalline structure development, providing real-time feedback to adjust synthesis conditions and maintain product stability.

Inventive Principle:
Principle #23Feedback

2Ease of manufacture

If uncontrolled reaction between amino acid and metal salts is allowed, then synthesis process is simpler, but the result is formation of unstable complexes with varying bioavailability

Engineering Contradiction:
Improvesynthesis process simplicityVSAvoidchemical structure consistency
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies parameter changes by controlling pH, temperature, and mixing conditions during synthesis to ensure consistent chelate formation. HPLC and XRD monitoring verify that these parameter controls produce the desired chemical structure and stability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces simple mechanical mixing with controlled chemical synthesis monitored by analytical instruments. HPLC and XRD provide objective measurement of synthesis progress, replacing trial-and-error approaches with precision control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If metal amino acid chelates are used to improve bioavailability, then metal absorption increases, but production costs increase due to complex synthesis requirements

Engineering Contradiction:
Improvemetal bioavailabilityVSAvoidproduction cost efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies self-service by using the chelate structure itself to provide stability information through XRD analysis of crystalline forms. The analytical methods monitor the chelate's own structural properties to ensure quality without requiring extensive external testing.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent optimizes synthesis parameters to balance bioavailability and cost. By controlling reaction conditions and monitoring with HPLC/XRD, the process achieves consistent chelate formation that maintains high metal bioavailability while reducing batch-to-batch variability and associated costs.

Inventive Principle:
Principle #35Parameter changes

4Quantity of substance

If phytic acid is present in the diet to provide nutrition, then dietary fiber increases, but metal absorption decreases due to complex formation

Engineering Contradiction:
Improvedietary fiber contentVSAvoidmetal bioavailability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent applies preliminary anti-action by pre-chelating metals with amino acids to create stable complexes that resist further binding by phytic acid. This preliminary stabilization prevents the harmful interaction between phytic acid and metals that would otherwise reduce absorption.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent creates composite metal-chelate structures combining metal ions with amino acids in specific ratios. These composite chelates have enhanced stability and resistance to interference from dietary components like phytic acid, maintaining metal bioavailability even in the presence of fiber.

Inventive Principle:
Principle #40Composite materials

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

Enables accurate quantification and stability assessment of metal amino acid chelates, reducing production costs and enhancing bioavailability by minimizing interactions with phytic acid, ensuring consistent product quality and performance.

Implementation Method 1

analyzing an aliquot of the solution from step (b) via high performance liquid chromatography to determine the amount of free ligand and amount of bound metal

Methodology Applied
Scientific EffectChromatography: Chromatography

Implementation Method 2

comparing X-ray patterns with reference databases to determine stability and solubility

Methodology Applied
Scientific EffectX-ray diffraction: X-Ray

Implementation Method 3

adjusting the pH of the aqueous solution to about 5.0 to about 7.0

Methodology Applied
Scientific EffectpH adjustment:

Data Source

PatentUS12584896B2Process for quantification of metal amino acid chelates in solutions and solids
Publication Date: 2026.03.24 PREMEX INC
  • US12584896B2 patent drawing
  • US12584896B2 patent drawing
  • US12584896B2 patent drawing

AI summary

A process for quantifying the amount of unbound metal and bound metal in solution is provided. A process for quantifying the amount of bound metal amino acid chelate and free ligand in a solid (e.g., dry mixture such as an animal feed) is also provided.