Ambient Ionization Mass Spectrometry for Boar Taint Detection
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Solution Overview
Problem
Current methods for detecting boar taint in pork are imprecise, expensive, and lack sensitivity and high-throughput, making them unsuitable for commercial settings, particularly in the context of rapid analysis on a slaughter line.
Innovation Solution
Ambient ionization techniques, such as rapid evaporative ionization mass spectrometry (REIMS), are used for direct and rapid analysis of porcine meat samples, enabling in-situ detection of boar taint with high sensitivity and specificity, allowing for automated classification and separation of tainted carcasses on a slaughter line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If Raman spectrometry is used to detect boar taint, then accurate results are produced, but analysis time becomes prohibitive (about 20 minutes per sample)
Solution Approach 1:
The patent replaces the mechanical/optical Raman spectrometry system with an ambient ionisation mass spectrometry system. This substitution enables direct ionisation of volatile compounds from the sample surface without requiring complex optical paths or long acquisition times, achieving both rapid analysis (seconds) and accurate detection of boar taint compounds.
Solution Approach 2:
The patent extracts and analyses only the volatile organic compounds responsible for boar taint (skatole, indole, androstenone) using ambient ionisation. By focusing on these specific compounds through selective ionisation and mass spectral analysis, the system achieves rapid detection without the time-consuming full-spectrum analysis required by Raman spectrometry.
2Reliability
If Gas Chromatography Mass Spectrometry (GCMS) is used to detect boar taint, then detection capability is provided, but the method is not sufficiently rapid or sensitive
Solution Approach 1:
The patent performs preliminary concentration of volatile compounds at the sample surface through ambient ionisation, eliminating the need for time-consuming sample extraction and chromatographic separation. The direct ionisation of volatiles from the tissue surface provides rapid analysis while maintaining sensitivity through the selective detection of characteristic mass spectral peaks.
Solution Approach 2:
The patent replaces the complex mechanical separation system of gas chromatography with direct mass spectrometric analysis. By using ambient ionisation to generate ions directly from the sample without chromatographic separation, the system achieves faster analysis times while maintaining detection capability through selective ion monitoring of boar taint compounds.
3Ease of operation
If sensory methods are used to test food quality, then organoleptic properties can be assessed, but the methods are imprecise and expensive due to reliance on trained assessors
Solution Approach 1:
The patent replaces the human sensory assessment system with an automated mass spectrometry system. The instrument objectively measures the presence and concentration of volatile compounds associated with organoleptic properties, eliminating inter-individual variation, habituation, and fatigue while providing precise, quantifiable data on food quality attributes.
Solution Approach 2:
The patent enables the sample to self-reveal its chemical composition through ambient ionisation. The volatile compounds naturally present in the sample are ionised and detected without requiring human sensory intervention, providing automated, objective assessment of organoleptic properties that is both precise and cost-effective.
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 method provides rapid, accurate, and cost-effective detection of boar taint, enabling the identification of tainted carcasses within seconds, facilitating efficient sorting and improving food quality control on a commercial scale.
Implementation Method 1
ions are generated from the food sample by ambient ionisation
Implementation Method 2
rapid evaporative ionisation mass spectrometry (REIMS) techniques circumvent long analysis times by enabling direct ionisation from the sample
Data Source
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AI summary
A method of analysing a food sample (3) comprises generating analyte ions from a food sample using ambient ionisation (5), analysing (1) the analyte ions to produce a data set, and assessing the data set to identify or determine one or more properties of the food sample.