Premna Species in Vietnam: Essential Oil Compositions and Mosquito Larvicidal Activities.

Autor: Hung NH; Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam.; Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam., Huong LT; School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghe An Province, Vietnam., Chung NT; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam., Truong NC; Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 43000, Nghe An Province, Vietnam., Dai DN; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam.; Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 43000, Nghe An Province, Vietnam., Satyal P; Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA., Tai TA; Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam., Hien VT; Faculty of Hydrometerology, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City 70000, Vietnam., Setzer WN; Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.; Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
Jazyk: angličtina
Zdroj: Plants (Basel, Switzerland) [Plants (Basel)] 2020 Aug 31; Vol. 9 (9). Date of Electronic Publication: 2020 Aug 31.
DOI: 10.3390/plants9091130
Abstrakt: Essential oils have emerged as viable alternatives to synthetic insecticides for control of mosquito-borne pathogens. The leaf essential oils of eight species of Premna (Lamiaceae) growing in central Vietnam have been obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry. Sesquiterpene hydrocarbons dominated most of the Premna essential oils, with the notable exception of Premna mekongensis from Ngoc Linh Nature Reserve, which had α-pinene as the major component. Larvicidal activities against Aedes aegypti have been determined and all of the Premna essential oils showed larvicidal activity with 24-h LC 50 < 65 μg/mL. The leaf essential oils of Premna cambodiana from Chu Mom Ray National Park and Premna mekongensis from Ngoc Linh Nature Reserve showed the best larvicidal activities with 24-h LC 50 of 16.8 and 18.0 μg/mL, respectively. The essential oil compositions and larvicidal activities of P. cambodiana , Premna flavescens , Premna maclurei , P. mekongensis , and Premna puberula are reported for the first time. Although the larvicidal activities of Premna leaf essential oils are promising, the essential oil yields are relatively low (0.10-0.25%).
Databáze: MEDLINE
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