DOST Taps Forest Products to Combat Dengue

By Apple Jean C. Martin-de Leon

The Department of Science and Technology (DOST) is exploring the potential of forest products as natural, cost-effective protection against mosquito-borne diseases such as dengue.

Experts from the DOST-Forest Products Research and Development Institute (DOST-FPRDI) have developed incense cones and sticks made from cinnamon bark, pili resin, and almaciga resin. These materials, which are residues from essential oil production, naturally possess insect-repelling properties.

“DOST is one with the nation in finding ways to curb the worrisome rise of dengue cases,” said DOST Secretary Renato U. Solidum Jr. “The Department has consistently contributed to addressing health concerns through research, technological advancements, and community-based interventions. As dengue cases continue to soar, so does the need for sustainable solutions.”

Initial tests of the incense formulations revealed a high potential to repel mosquitoes and houseflies. Chemical analysis identified substances such as creosol and furfural in the smoke emitted by the incense, which suggest potential as disinfectants, fungicides, and pesticides.

“The presence of these compounds highlights the potential of our formulations for broader applications,” said Forester Florena B. Samiano, leader of the Institute’s Flavors and Fragrances from the Forest Technology Program (F3TP). “Further studies may optimize their use for such purposes.”

DOST-FPRDI Director Rico J. Cabangon emphasized the abundance of natural resources in Philippine forests that could help combat dengue and other diseases.

“Through DOST-FPRDI’s years of extensive research on forest products, we continue to harness the potential of wood and non-wood products to address the nation’s pressing concerns,” Cabangon said.

Dengue, a mosquito-borne viral disease, remains a significant public health concern in tropical countries like the Philippines. The Department of Health recently reported a 40 percent increase in dengue cases compared to the same period last year.

Green and Sustainable Solutions

The production of essential oils often generates waste, such as spent bark, leaves, resins, and hydrosols. DOST-FPRDI researchers have optimized these residues by transforming them into incense products, such as those made from cinnamon bark, almaciga resin, and pili resin.

“Through a circular economy approach, we have turned waste into valuable products,” said Samiano. “This not only reduces environmental harm but also creates income-generating opportunities while providing natural alternatives to chemical insect repellents.”

While initial studies demonstrate the effectiveness of DOST-FPRDI’s incense formulations, further sensory testing and industry-scale applications are recommended.

DOST-FPRDI, the research and development arm of the DOST, continues to lead scientific efforts in utilizing and conserving forest resources. Its initiatives promote responsible forest resource use while safeguarding biodiversity.

For more information, visit https://fprdi.dost.gov.ph/ or contact DOST-FPRDI at info@fprdi.dost.gov.ph.