Method for evaluating the influence of eps on the toxicity of microplastics based on algal photosynthetic physiological indicators
By measuring algal photosynthetic physiological indicators and light response curves, combined with Platt model and analysis of variance, a rapid and quantitative evaluation of the effect of microplastics on algal light energy conversion efficiency was achieved, revealing the regulatory mechanism of EPS, filling the gap in existing technology, and providing a scientific basis for assessing the risk of microplastics in water bodies.
CN122146835APending Publication Date: 2026-06-05HUAQIAO UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAQIAO UNIVERSITY
- Filing Date
- 2026-02-12
- Publication Date
- 2026-06-05
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Figure CN122146835A_ABST
Abstract
The application discloses a method for evaluating the influence of extracellular polymeric substances (EPS) on microplastic toxicity based on algal photosynthetic physiological indexes. After algae capable of producing EPS are cultured, the algal EPS is artificially removed or retained, and the response of the maximum quantum yield (F v / F m ) and the initial slope (alpha) of the light response curve of the algae under the microplastic exposure condition is compared, so that the quantitative characterization and evaluation of the influence of EPS on the toxicity of microplastics is realized.
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