Buffered Extraction Medium for GI Protein Dilution

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Solution Overview

Problem

Existing methods for determining protein concentrations in gastrointestinal tract samples, particularly fecal samples, face challenges with low recovery rates and instability of protein extracts, especially at higher dilutions, leading to inaccurate and unreliable results.

Innovation Solution

A method involving a dilution of the sample in a buffered aqueous extraction medium ranging from 1:100 to 1:10,000, which enhances protein yield, stability, and accuracy, allowing for more reliable detection of protein concentrations and improved disease monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the sample is diluted with buffered aqueous extraction medium at higher dilutions (1:50 or higher), then the protein extraction yield increases, but the stability of protein extracts decreases leading to inaccurate results

Engineering Contradiction:
Improveprotein extraction yieldVSAvoidstability of protein extracts
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent changes the dilution parameter from conventional 1:50 or higher to a specific range of 1:10 to 1:50 (optimally 1:20 to 1:40), which resolves the contradiction by finding the optimal balance point where sufficient protein yield is achieved while maintaining extract stability and accuracy

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the sample is diluted at lower concentrations (1:10 to 1:50), then the stability and accuracy of protein determination improves, but the protein yield may be insufficient for reliable detection

Engineering Contradiction:
Improveaccuracy of protein determinationVSAvoidprotein yield
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent optimizes the dilution parameter to the range of 1:10 to 1:50, which provides the ideal balance between maintaining measurement precision and achieving sufficient protein yield for reliable detection

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If protein extracts are stored at elevated temperatures, then shipping and storage logistics are simplified, but the stability of protein extracts deteriorates

Engineering Contradiction:
Improveshipping and storage convenienceVSAvoidstability of protein extracts
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The optimized extraction method creates a buffer effect that protects protein stability during storage and shipping at elevated temperatures, allowing practical storage at 2-8°C without immediate freezing requirements

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The specific dilution range of 1:10 to 1:50 creates optimal extraction conditions that enhance protein stability, allowing storage at 2-8°C for extended periods without degradation

Inventive Principle:
Principle #35Parameter changes

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

This method provides higher and more stable protein extraction, leading to more accurate diagnostic results and better monitoring of diseases, with improved stability of protein extracts even at elevated temperatures, reducing the need for express shipping and cooling.

Implementation Method 1

a dilution of the sample in the buffered aqueous extraction medium in a range of 1:100 to 1:10,000 is obtained

Methodology Applied
Scientific EffectDilution:

Data Source

PatentUS20200240994A1Method for determination of a protein
Publication Date: 2020.07.30 BUHLMANN LAB AG
  • US20200240994A1 patent drawing
  • US20200240994A1 patent drawing
  • US20200240994A1 patent drawing

AI summary

The present invention concerns a method for determining the concentration of a protein in a gastrointestinal (GI) tract sample taken from a human or an animal. The present invention is characterized by the feature that a dilution of the sample in the buffered aqueous extraction medium in a range of 1:100 to 1:10,000 is obtained. The present invention leads to a significant improvement of the technical situation, and provides a simple, sensitive and specific determination tool of proteins in GI tract samples. The determination of proteins, e.g. calprotectin, elastases or hemoglobin, in GI tract samples leads to more accurate and reproducible results.