ABSTRACT

In the studies done by Ravikumar et al., a total of eight seaweeds were collected from Kanyakumari district, Tamil Nadu, India. The in vitro antiplasmodial activity was performed against Plasmodium falciparum. The study of Ali et al. was made as an attempt to find out the mosquito larvicidal efficacy of ethanolic extracts of seaweeds against the vectors of several tropical diseases, namely dengue, malaria, yellow fever, and filariasis, among others. There are numerous studies aiming to discover antiparasitic natural products from marine organisms. Insecticidal activity was evaluated by a topical application method using adult termites of R. speratus. In an attempt to find natural products that could be employed in the effective control of the dengue mosquito, the larvicidal activities of crude extracts obtained from 15 seaweed species collected from northeastern Brazil have been determined. The isolation of elatol from seaweed could represent an interesting prospect for a novel agent against the dengue mosquito.