The Department of Science and Technology (DOST) – Forest Products Research and Development Institute has come up with an innovative solution to tackle insect pests, like mosquitoes and houseflies, by transforming forest waste into effective insect repellents. By utilizing residues from cinnamon barks, and pili and almaciga resins—by-products of essential oil production—DOST has created natural products that could help lower the risk of mosquito-borne diseases like dengue.
Repurposing Waste for a Purpose
DOST’s Florena Samiano explained that during essential oil extraction, large amounts of waste materials are left behind, such as spent leaves, barks, and resins. Instead of discarding these residues, they discovered they could be processed into incense sticks and cones that naturally repel insects. The conversion of these waste materials into useful products not only reduces waste but also offers a sustainable solution to insect problems.
How It Works
Through testing, DOST identified over 100 volatile compounds in the residues, which are responsible for the repelling effects on insects. For example, creosol, a compound found in the incense, acts as a germicide and gives the product a pleasant, spicy vanilla scent. Other compounds, like furfural, have a caramel-like aroma and can even control plant pests. These natural ingredients make the incense both effective and eco-friendly, providing a healthier alternative to synthetic repellents.
Benefits for Health and the Environment
What sets these incense products apart is their natural composition—no synthetic chemicals involved. They’re safe for the environment and human health. Plus, by utilizing forest waste, DOST is promoting a circular economy that maximizes the value of resources. This initiative can help reduce the amount of waste dumped into the environment while offering a practical solution to combat the rising threat of dengue.
