Date of Completion

6-2019

Document Type

Research Project

Degree Name

Grade 12

Keywords

Toxicity Tests, Teratogens, Propylene Glycol, Teratogenic Effect, acute toxicity (FET) Test, zebrafish

Abstract

The experimental method of research was used in the study. The researcher determined the teratogenic effect of the main electronic cigarette component propylene glycol in different concentrations using OECD 236 Zebrafish (Danio rerio) acute toxicity (FET) test. The results showed that the highest concentration of propylene glycol (Treatment 5 (2500ppm)) exhibits the highest teratogenic potential 3dpf inclusive of the four parametric observations such as coagulation of embryo, lack of somite formation, lack of tail detachment, and lack of heartbeat. The LC50 of the treatments was found to be at 977.23 ppm. The treatments showed significant difference with each other in terms of the percentage of dead 3dpf. With regards to this, the concentration of propylene glycol is directly proportional to the percentage of dead embryos. The concentrations of propylene glycol also showed no statistically significant difference with positive control (50% ethanol). This resulted to the moderate toxicity of propylene glycol in zebrafish embryo using the OECD 236 zebrafish (Danio Rerio) acute toxicity (FET) test.

First Advisor

Mark Lawrence F. Fabregas

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