The occurrence of dengue problem around the world has increased significantly in recent years and most of them are underestimated and misclassified. And with around 390 million cases of dengue infection per year, 3.9 billion people are at risk of contracting the virus in 128 countries. Dengue Virus Net (2018) described Aedes a Egypti (Dengue) mosquitoes as extremely small constituting the Culicidae family with a complex life cycle that undergoes dramatic changes in form, function and habitat and ultimately causes fever dengue. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essayA recent study by Ebana et. Al. (2015) revealed that Nypa frutican is composed of bioactive chemicals especially saponins, anthronoids, alkaloids, polyphenols, phlobotannins and saponins which can be considered biochemical agents that can inhibit and possibly kill mosquito larvae. The presence of alkaloids, phenols and terpenoids in the extract of Ziziphus jujube Mill (also present in the leaves of Nypa frutican) caused the death of the dengue vector mosquito larvae. Additionally, phenols contributed to shortening the lifespan of an adult mosquito, as well as decreasing their ability to reproduce more during mating. An example of a palm species that is usually found living in mangrove forest is Nypa fruticans. Nypa fruticans has the ability to survive in an extreme environment and this is probably a result of why nypa fruticans could also help it to have a type of defense metabolites (Aziz & Jack, 2015). One of the studies by Prasad et. Al., (2013) revealed that the ripe and unripe fruit of Nypa fruticans, which was somewhat ignored in the field of science, exhibited bioactive compounds such as phenols, flavonoids and antioxidants. In terms of abundance, phenols have been indicated to contain the largest amount of all biochemicals present in the fruit. Please note: this is just a sample. Get a custom paper from our expert writers now. Get a custom essay The four flavonoids, namely ponarin, rhoifolin, naringin and marmesin have been shown to have a repellent effect on Aedes a Egypti and have no skin irritation when tested by research with 25 volunteers. Therefore, the four flavonoid compounds may be a potential commercial mosquito repellent product and may represent an alternative to chemicals used for mosquito repellency. Dhandapani, A., & Kadarkarai, M. (2011) analyze the efficacy of flavonoid in ethanol extract in Cassia Occidentalis against Malaria Vectore Anopheles Stephensi Lis. The result shows that the smoke toxicity of flavonoids in ethanol extract in Cassia Occidentalis against Anopheles stephensi shows that the eggs of the ovipositing female were less because she exposed the flavonoid in ethanol extract in Cassia Occidentalis and those that were not exposed did not shows no sign of change.