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Development and optimization of a standard method for extraction of microplastics in mussels by enzyme digestion of soft tissues
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Researchers optimized methods for digesting mussel soft tissue and extracting microplastics for analysis, finding that sodium hydroxide and enzymatic digestion both achieved high recoveries (~93%) while acid digestion damaged certain plastic types. The validated method provides a reliable protocol for monitoring microplastic contamination in commercially important bivalves.
The authors compared procedures for digestion of mussel soft tissues and extraction of microplastics. Complete tissue digestion was achieved with 1M NaOH, 35% HNO3 , and protease at 9.6 UHb/mL (unit hemoglobin per mL); but use of HNO3 caused unacceptable destruction of some microplastics. Recovery of microplastics spiked into mussels was similar (93 ± 10%) for NaOH and enzyme digestions. The authors recommend use of industrial enzymes based on digestion efficiency, microplastic recovery, and avoidance of caustic chemicals. Environ Toxicol Chem 2017;36:947-951. © 2016 SETAC.
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Metode ekstrakcije mikroplastike iz školjkaša
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.