Related Experiment Video
Updated: Nov 28, 2025
02:52
Small Molecule Screening and Toxicity Testing in Early-stage Zebrafish Larvae
Published on: March 7, 2025
1.7K
Adverse effects of E150d on zebrafish development
Teresa Capriello1, Ilaria Mariarosaria Visone1, Chiara Maria Motta1
1Department of Biology, University of Naples "Federico II", Naples, Italy.
Summary
Caramel dye (E150d) poses environmental risks, as it contains a cytotoxic compound. Studies show this food additive negatively impacts zebrafish embryo development, affecting survival and causing physical deformities.
Area of Science:
- Environmental Toxicology
- Developmental Biology
- Food Science
Background:
- E150d (caramel dye) is a common food additive containing 4-methylimidazole, a known cytotoxic agent.
- Increased consumption of E150d leads to its environmental release, particularly into aquatic ecosystems.
Purpose of the Study:
- To assess the toxic effects of E150d on zebrafish embryos.
- To understand the dose-dependent impact of E150d on early life stages in an aquatic model.
Main Methods:
- Zebrafish embryos (6 hours post-fertilization) were exposed to two concentrations of E150d (0.3 g/L and 0.6 g/L) for 72 hours.
- Embryonic development, hatching, survival, cardiac function, swimming performance, and physical morphology were analyzed.
Main Results:
- E150d exhibited dose-dependent toxicity, negatively affecting hatching rates and survival.
- Observed toxic effects included developmental abnormalities, impaired cardiac beat, reduced swimming performance, and damage to skeletal muscles and the pericardial cavity.
Conclusions:
- The environmental dispersion of E150d poses a significant risk to aquatic organisms.
- Reducing the unnecessary use of E150d is crucial for preserving both human and environmental health.
