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Updated: Jun 21, 2025
Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels Bivalvia: Unionida
Published on: October 4, 2019
Proposed validation stages for MPs extraction from edible mussels (Mytilus galloprovincialis)
G García Rosales1,2, F Oberhaensli1, C M Alonso-Hernández1
1IAEA Environment Laboratoires, 4 Quai Antoine 1er B.P. 800, MC-98000, Monaco.
Abstract:
The potential presence of microplastics (MPs) in seafood products presents significant health concerns, demanding the adoption of standardized and validated methodologies. In this study, we introduce a validated method and an innovative technique for extracting MPs from mussels using an oxidizing agent, Corolase enzyme, and a surfactant, thus eliminating the need for mechanical agitation. Evaluation of the extraction process focused on three critical parameters: recovery percentage, repeatability, and chemical integrity, along with color stability. To ensure precision and reliability, low-density infrared spectroscopy (LDIR) was employed to analyze the effect of spectrum quality (Q). Ultimately, this methodology was applied to identify MPs in commercial mussels, with results showcasing the viability of the proposed validation stages for MPs extraction, maintaining MPs integrity with high recovery percentages.
Insights
This study presents a new, validated method for extracting microplastics (MPs) from mussels without mechanical agitation. The innovative technique ensures high recovery and maintains the chemical integrity of microplastics for accurate analysis.
Area of Science:
- Environmental Science
- Food Safety
- Analytical Chemistry
Background:
- Microplastics (MPs) in seafood pose health risks.
- Standardized methods for MP extraction are needed.
- Current methods may damage MP integrity.
Purpose of the Study:
- To develop and validate a novel MP extraction method for mussels.
- To evaluate the method's recovery, repeatability, and chemical integrity.
- To apply the method for identifying MPs in commercial mussel samples.
Main Methods:
- Extraction using an oxidizing agent, Corolase enzyme, and a surfactant.
- Elimination of mechanical agitation during extraction.
- Analysis using low-density infrared spectroscopy (LDIR) to assess spectrum quality (Q).
Main Results:
- The developed method achieved high recovery percentages for MPs.
- The chemical integrity and color stability of MPs were maintained.
- The methodology proved viable for analyzing MPs in commercial mussels.
Conclusions:
- The validated method offers a reliable approach for MP extraction from mussels.
- This technique preserves MP integrity, crucial for accurate risk assessment.
- The study supports the adoption of standardized, validated MP analysis techniques.
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