Rapid and Simultaneous Authentication of Six Laver Species Using Capillary Electrophoresis-Based Multiplex PCR
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View abstract on PubMed
Summary
This summary is machine-generated.A new multiplex PCR method accurately identifies six laver species, combating seafood fraud. This technique distinguishes species in commercial products, even detecting undeclared or cheaper species mixtures.
Area Of Science
- Marine Biology
- Food Science
- Molecular Biology
Background
- Laver products are commonly consumed dried or seasoned.
- Morphological identification of laver species is challenging in processed forms, leading to potential seafood fraud.
- Accurate species authentication is crucial for consumer protection and regulatory compliance.
Purpose Of The Study
- To develop a reliable method for authenticating six different laver species.
- To address the issue of seafood fraud in commercially processed laver products.
Main Methods
- Development of a capillary electrophoresis-based multiplex polymerase chain reaction (PCR) assay.
- Design of species-specific primer sets targeting chloroplast <i>rbcL</i> or <i>rbcS</i> genes.
- Optimization of singleplex and multiplex PCR conditions for specific amplicon generation.
Main Results
- Successful establishment of multiplex PCR conditions yielding specific amplicons for six laver species (ranging from 117 bp to 274 bp).
- Assay demonstrated high sensitivity, detecting as little as 0.1 pg of DNA.
- Application to 40 commercial laver products revealed accurate species labeling and detected instances of undeclared or mixed species.
Conclusions
- The developed capillary electrophoresis-based multiplex PCR assay is a sensitive and specific tool for authenticating six laver species.
- This method effectively combats seafood fraud by accurately identifying species in commercial products.
- The assay's properties make it suitable for routine quality control and regulatory verification of laver products.
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