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Lima SC, de Oliveira AC, Tavares CPS, Costa MLL, Roque RA. Essential oil from Piper tuberculatum Jacq. (Piperaceae) and its majority compound β-caryophyllene: mechanism of larvicidal action against Aedes aegypti (Diptera: Culicidae) and selective toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:33454-33463. [PMID: 38684608 DOI: 10.1007/s11356-024-33416-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/17/2024] [Indexed: 05/02/2024]
Abstract
Synthetic insecticides have been the primary approach in controlling Aedes aegypti; however, their indiscriminate use has led to the development of resistance and toxicity to non-target animals. In contrast, essential oils (EOs) are alternatives for vector control. This study investigated the mechanism of larvicidal action of the EO and β-caryophyllene from Piper tuberculatum against A. aegypti larvae, as well as evaluated the toxicity of both on non-target animals. The EO extracted from P. tuberculatum leaves was majority constituted of β-caryophyllene (54.8%). Both demonstrated larvicidal activity (LC50 of 48.61 and 57.20 ppm, p < 0.05), acetylcholinesterase inhibition (IC50 of 57.78 and 71.97 ppm), and an increase in the production of reactive oxygen and nitrogen species in larvae after exposure to the EO and β-caryophyllene. Furthermore, EO and β-caryophyllene demonstrate no toxicity to non-target animals Toxorhynchites haemorrhoidalis, Anisops bouvieri, and Diplonychus indicus (100% of survival rate), while the insecticide α-cypermethrin was highly toxic (100% of death). The results demonstrate that the EO from P. tuberculatum and β-caryophyllene are important larvicidal agents.
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Affiliation(s)
- Suelen C Lima
- Laboratório de Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69067-375, Brazil.
| | - André C de Oliveira
- Laboratório de Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69067-375, Brazil
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Amazonas, 69080-900, Brazil
| | - Claudia P S Tavares
- Laboratório de Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69067-375, Brazil
| | - Maria Luiza L Costa
- Laboratório de Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69067-375, Brazil
| | - Rosemary A Roque
- Laboratório de Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, 69067-375, Brazil
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Pham TV, Ha NX, Luyen ND, Xuan TH, Le Quoc T, Hung NH, The SN. Chemical Composition, Mosquito Larvicidal and Antimicrobial Activities, and Molecular Docking Study of Essential Oils of Cinnamomum melastomaceum, Neolitsea buisanensis and Uvaria microcarpa from Vietnam. Chem Biodivers 2023; 20:e202300652. [PMID: 37531297 DOI: 10.1002/cbdv.202300652] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/02/2023] [Accepted: 08/02/2023] [Indexed: 08/04/2023]
Abstract
The leaf oil compositions of two Lauraceae and one Annonaceae plants cultivated in Vietnam were analysed by GC/MS (gas chromatography-mass spectrometry) analysis. The leaf oil of the first Lauraceae plant Cinnamomum melastomaceum contained 34 identified compounds, in which benzyl benzoate (38.5 %), linalool (19.9 %), (E)-caryophyllene (10.5 %), and α-terpineol (6.9 %) were the major compounds. The leaves of the second Lauraceae plant Neolitsea buisanensis gave an oil with the main compounds (E)-β-ocimene (24.0 %), benzyl benzoate (15.8 %), bicyclogermacrene (14.9 %), and (E)-caryophyllene (6.3 %). The leaf oil of the Annonaceae plant Uvaria microcarpa consisted of the principal compounds (E)-caryophyllene (18.0 %), bicyclogermacrene (8.1 %), and δ-elemene (6.1 %). Two Lauraceae oil samples exhibited strong mosquito larvicidal activity against Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus with LC50 and LD90 values of less than 50 μg/mL. The Annonaceae oil sample showed strong antimicrobial activity against the fungus Aspergillus niger ATCC 1015 with the MIC (minimum inhibitory concentration) value of 32 μg/mL. In the docking approach, the major compounds (E)-caryophyllene, bicyclogermacrene, and benzyl benzoate interacted with the mosquito odorant-binding protein 3OGN, whereas (E)-caryophyllene, bicyclogermacrene, and δ-elemene also potentially interacted with the 4ZA5 protein of fungus A. niger.
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Affiliation(s)
- Ty Viet Pham
- Faculty of Chemistry, University of Education, Hue University, 34 Le Loi, Hue, 530000, Vietnam
| | - Nguyen Xuan Ha
- Institute of Natural Products Chemistry, VAST, 18 Hoang Quoc Viet, Caugiay, 10000, Hanoi, Vietnam
| | - Nguyen Dinh Luyen
- Institute of Natural Products Chemistry, VAST, 18 Hoang Quoc Viet, Caugiay, 10000, Hanoi, Vietnam
| | - Thao Hoang Xuan
- Faculty of Biology, University of Education, Hue University, 34 Le Loi, Hue, 530000, Vietnam
| | - Thang Le Quoc
- Faculty of Chemistry, University of Education, Hue University, 34 Le Loi, Hue, 530000, Vietnam
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Danang, 550000, Vietnam
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Danang, 550000, Vietnam
| | - Son Ninh The
- Institute of Chemistry, VAST, 18 Hoang Quoc Viet, Caugiay, Hanoi, 10000, Vietnam
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Bauer IL. The oral repellent - science fiction or common sense? Insects, vector-borne diseases, failing strategies, and a bold proposition. Trop Dis Travel Med Vaccines 2023; 9:7. [PMID: 37381000 DOI: 10.1186/s40794-023-00195-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 06/09/2023] [Indexed: 06/30/2023] Open
Abstract
Over the last decades, unimaginable amounts of money have gone into research and development of vector control measures, repellents, treatment, and vaccines for vector borne diseases. Technological progress and scientific breakthroughs allowed for ever more sophisticated and futuristic strategies. Yet, each year, millions of people still die or suffer from potentially serious consequences of malaria or dengue to more recent infections, such as zika or chikungunya, or of debilitating consequences of neglected tropical diseases. This does not seem value for money. In addition, all current vector control strategies and personal protection methods have shortcomings, some serious, that are either destructive to non-target species or unsatisfactory in their effectiveness. On the other hand, the rapid decline in insect populations and their predators reflects decades-long aggressive and indiscriminate vector control. This major disruption of biodiversity has an impact on human life not anticipated by the well-meaning killing of invertebrates. The objective of this paper is to re-examine current control methods, their effectiveness, their impact on biodiversity, human and animal health, and to call for scientific courage in the pursuit of fresh ideas. This paper brings together topics that are usually presented in isolation, thereby missing important links that offer potential solutions to long-standing problems in global health. First, it serves as a reminder of the importance of insects to human life and discusses the few that play a role in transmitting disease. Next, it examines critically the many currently employed vector control strategies and personal protection methods. Finally, based on new insights into insect chemo-sensation and attractants, this perspective makes a case for revisiting a previously abandoned idea, the oral repellent, and its use via currently successful methods of mass-application. The call is out for focused research to provide a powerful tool for public health, tropical medicine, and travel medicine.
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Affiliation(s)
- Irmgard L Bauer
- College of Healthcare Sciences, Academy - Tropical Health and Medicine, James Cook University, Townsville, QLD, 4811, Australia.
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Huong LT, Thinh BB, Hung NH, Phu HV, Hieu NC, Dai DN. Chemical composition, antimicrobial and larvicidal activities of essential oils of two Syzygium species from Vietnam. BRAZ J BIOL 2023; 84:e270967. [PMID: 37018769 DOI: 10.1590/1519-6984.270967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/23/2023] [Indexed: 04/07/2023] Open
Abstract
The present study is the first to investigate the chemical composition, antimicrobial and larvicidal activities of the essential oils from the leaves of Syzygium attopeuense (Gagnep.) Merr. & L.M.Perry and Syzygium tonkinense (Gagnep.) Merr. & L.M.Perry collected in Vietnam. The essential oils were extracted by hydrodistillation and analyzed by GC and GC-MS. The study indicated the presence of a high percentage of sesquiterpenes in both investigated essential oils. The major components of S. attopeuense essential oil were bicyclogermacrene (24.26%), (E)-caryophyllene (11.72%), and (E)-β-ocimene (6.75%), whereas S. tonkinense essential oil was dominated by (E)-caryophyllene (80.80%). The antimicrobial activity of essential oils was evaluated by broth microdilution assay to determine the minimum inhibitory concentration (MIC) and median inhibitory concentration (IC50). Both essential oils exhibited remarkable inhibitory activity against all tested Gram-positive bacteria and yeast than Gram-negative bacteria. Among them, essential oils of S. attopeuense and S. tonkinense possessed the strongest activity against Enterococcus faecalis (MIC = 4.00 μg/mL; IC50 = 1.69 μg/mL) and Candida albicans (MIC = 16.00 μg/mL; IC50 = 8.67 μg/mL), respectively. Furthermore, the larvicidal activity of essential oils was tested using fourth-instar larvae of Aedes aegypti. Results from the larvicidal test revealed that both essential oils had an excellent inhibitory effect against A. aegypti larvae with LC50 values from 25.55 to 30.18 μg/mL and LC90 values from 33.00 to 39.01 μg/mL. Our findings demonstrate that the essential oil extracted from S. attopeuense and S. tonkinense are potential sources of natural antimicrobials and can act as inexpensive mosquito larvicidal agents.
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Affiliation(s)
- L T Huong
- Vinh University, College of Education, Faculty of Biology, Nghe An, Vietnam
| | - B B Thinh
- Cracow University of Technology, Cracow, Poland
- Far Eastern Federal University, Vladivostok, Russia
| | - N H Hung
- Duy Tan University, Institute of Research and Development, Center for Advanced Chemistry, Da Nang, Vietnam
- Duy Tan University, Department of Pharmacy, Da Nang, Vietnam
| | - H V Phu
- Vinh University, College of Education, Faculty of Biology, Nghe An, Vietnam
| | - N C Hieu
- Vinh University, College of Education, Faculty of Biology, Nghe An, Vietnam
| | - D N Dai
- Nghe An College of Economics, Nghe An, Vietnam
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Wan N, Li Y, Huang X, Li Y, Zheng Q, Wu Z. A comparative evaluation of chemical composition and antimicrobial activities of essential oils extracted from different chemotypes of Cinnamomum camphora (L.) Presl. GRASAS Y ACEITES 2022. [DOI: 10.3989/gya.1014202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The purpose of this study is to determine the chemical composition of the essential oils of Cinnamomum camphora (L.) Presl leaves (CCPL) from 5 different habitats in China by GC-MS, and to evaluate their antimicrobial activities against 3 foodborne pathogens, using a paper disc diffusion method. A total of 30 compounds were identified with a predominance of oxygenated monoterpenes, including linalool (42.65%-96.47%), eucalyptol (39.07%-55.35%) and camphor (26.08%) as well as monoterpene hydrocarbons such as sabinene (6.18%-12.93%) and α-terpineol (8.19%-13.81%). Through cluster analysis, CCPL from 5 different habitats can be well divided into 2 categories. Combining with principal component analysis, the habitats can be better correlated with the chemical constituents of the essential oils. The antimicrobial activities of 5 extracted essential oils against 2 gram-negative bacteria and one gram-positive bacteria were assessed. It showed that the essential oil extracted from the CCPL harvested in Jinxi had the strongest antibacterial property. The results of this study provided basis for resource identification of CCPL and quality difference identification of essential oils. Research on the antibacterial properties of several pathogenic strains has proved its application value as a natural food preservative.
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Combination of GC-MS Molecular Networking and Larvicidal Effect against Aedes aegypti for the Discovery of Bioactive Substances in Commercial Essential Oils. Molecules 2022; 27:molecules27051588. [PMID: 35268689 PMCID: PMC8912102 DOI: 10.3390/molecules27051588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/20/2022] [Accepted: 02/24/2022] [Indexed: 01/11/2023] Open
Abstract
Dengue is a neglected disease, present mainly in tropical countries, with more than 5.2 million cases reported in 2019. Vector control remains the most effective protective measure against dengue and other arboviruses. Synthetic insecticides based on organophosphates, pyrethroids, carbamates, neonicotinoids and oxadiazines are unattractive due to their high degree of toxicity to humans, animals and the environment. Conversely, natural-product-based larvicides/insecticides, such as essential oils, present high efficiency, low environmental toxicity and can be easily scaled up for industrial processes. However, essential oils are highly complex and require modern analytical and computational approaches to streamline the identification of bioactive substances. This study combined the GC-MS spectral similarity network approach with larvicidal assays as a new strategy for the discovery of potential bioactive substances in complex biological samples, enabling the systematic and simultaneous annotation of substances in 20 essential oils through LC50 larvicidal assays. This strategy allowed rapid intuitive discovery of distribution patterns between families and metabolic classes in clusters, and the prediction of larvicidal properties of acyclic monoterpene derivatives, including citral, neral, citronellal and citronellol, and their acetate forms (LC50 < 50 µg/mL).
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Benelli G. Insecticide, Acaricide, Repellent and Antimicrobial Development. Molecules 2022; 27:386. [PMID: 35056701 PMCID: PMC8780506 DOI: 10.3390/molecules27020386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 11/16/2022] Open
Abstract
The quick spread of invasive arthropod species worldwide, sometimes boosted by global warming and urbanization [...].
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Affiliation(s)
- Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
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Improved adulticidal activity against Aedes aegypti (L.) and Aedes albopictus (Skuse) from synergy between Cinnamomum spp. essential oils. Sci Rep 2021; 11:4685. [PMID: 33633308 PMCID: PMC7907141 DOI: 10.1038/s41598-021-84159-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/10/2021] [Indexed: 12/04/2022] Open
Abstract
Improved natural adulticidal agents against mosquito vectors are in urgent need, and essential oils from Cinnamomum plants can assume this role quite readily. Cinnamomum verum, C. cassia, and C. loureiroi essential oils (EOs) were extracted from the barks and evaluated for their chemical composition by GC–MS. The major constituent of the three EOs was cinnamaldehyde. WHO susceptibility tests on individual and combined EOs as well as cinnamaldehyde were conducted against female adults of Aedes aegypti and Aedes albopictus. All EO combinations exhibited a synergistic effect, manifesting a higher toxicity, with a synergistic value ranging from 2.9 to 6.7. Their increasing mortality value was improved between 16.0 to 41.7%. The highest synergistic effect was achieved by an EO combination of 0.5% C. cassia + 0.5% C. loureiroi, while the highest insecticidal activity was achieved by 2.5% C. verum + 2.5% C. cassia and 1% cinnamaldehyde, with a knockdown and mortality rate of 100% and a KT50 between 0.7 and 2.1 min. This combination was more toxic to both mosquito species than 1% w/v cypermethrin. These findings demonstrate that cinnamaldehyde and synergistic combinations of C. verum + C. cassia EOs and C. cassia + C. loureiroi EOs have a high insecticidal efficacy against Aedes populations.
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Luz TRSA, de Mesquita LSS, Amaral FMMD, Coutinho DF. Essential oils and their chemical constituents against Aedes aegypti L. (Diptera: Culicidae) larvae. Acta Trop 2020; 212:105705. [PMID: 32956639 DOI: 10.1016/j.actatropica.2020.105705] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 11/19/2022]
Abstract
This review focused on the toxicity of essential oils and their constituents against Aedes aegypti L. (Diptera, Culicidae) larvae, a key vector of important arboviral diseases, such as dengue, chikungunya, zika, and yellow fever. This review is based on original articles obtained by searching major databases in the last six years. Our literature review shows that 337 essential oils from 225 plant species have been tested for larvicidal bioactivity. More than 60% of these essential oils were considered active (LC50<100 µg/mL). Most species belong to the families Lamiaceae (19.3%), Lauraceae (9.9%), and Myrtaceae (9.4%). The plants studied for their larvicidal activity against A. aegypti were mainly collected in India and Brazil (30 and 20%, respectively) and the parts of the plants most used were the leaves. Less than 10% of essential oils were evaluated for toxicity against non-target organisms and with the aim to demonstrate safe use. The most used plant parts are leaves and the main compounds of essential oils were described. The most active essential oils are rich in sesquiterpene hydrocarbons, oxygenated sesquiterpenes, and monoterpene hydrocarbons. Here, factors affecting bioactivity (chemical composition, plant parts, and harvesting site) of essential oils and their constituents, as well as safety to non-target organisms are discussed. Essential oils have considerable potential against A. aegypti. This review shows that essential oils might be used to control arboviruses, and further studies on safety and formulations for application in the field should be performed.
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Affiliation(s)
- Tássio Rômulo Silva Araújo Luz
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil.
| | - Ludmilla Santos Silva de Mesquita
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | - Flavia Maria Mendonça do Amaral
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | - Denise Fernandes Coutinho
- Laboratory of Phytotherapy and Biotechnology in Health (LaFiBioS), Health Sciences Graduate Program, Federal University of Maranhão, São Luís, Maranhão, Brazil
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Almadiy AA. Chemical profile, mosquitocidal, and biochemical effects of essential oil and major components of Dysphania ambrosioides against Culex quinquefasciatus Say. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41568-41576. [PMID: 32691320 DOI: 10.1007/s11356-020-10137-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
To seek new mosquito control agents while avoiding the environmental impacts and toxicity hazards of conventional pesticides, the essential oil of Dysphania ambrosioides was obtained by hydrodistillation and analysed using GC-FID and GC-MS. The compounds 1-methyl-4-(1-methylethyl)-2,3-dioxabicyclo[2.2.2]oct-5-ene (cis-ascaridole), 1-methyl-4-(1-methylethyl) benzene (р-cymene), and 1-isopropyl-4-methyl-1,3-cyclohexadiene (p-mentha-1,3-diene also known as α-terpinene) were identified as the major components. The EO and the major fractions showed remarkable mosquitocidal activity against third instar larvae and adults of Culex quinquefasciatus Say. The oil and fractions were assayed at 3.125, 6.25, 12.5, 25, and 50 μl/l. Mortality was time- and dose-dependent. At 24 h post-exposure at an assayed concentration of 50 μl/l, the larval and adult mortalities ranged between 80.11-100% and 91.22-100%, respectively. Strong larvicidal and adulticidal activities were recorded in the cases of the crude oil and cis-ascaridole. The LC50 values after 24 h of treatment ranged between 6.2-20.1 μl/l and 5.1-13.9 μl/l against larvae and adults, respectively. The corrected percentage mortalities increased over time with the tested plant oil and the major fractions relative to the control. The time required to achieve 50% mortality (LT50) decreased remarkably with all treatments. The tested EO and major fractions effectively inhibited larval acetylcholinesterase activity with IC50 values ranging from 8.44 to 64.80 mM compared with 2.08 × 10-3 mM for the reference standard, methomy. The results indicate the potential of developing natural mosquitocides against C. quinquefasciatus based on the tested EO and its major fractions. Graphical abstract.
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Affiliation(s)
- Abdulrhman A Almadiy
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, 1988, Saudi Arabia.
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Almadiy AA. Chemical composition, insecticidal and biochemical effects of two plant oils and their major fractions against Aedes aegypti, the common vector of dengue fever. Heliyon 2020; 6:e04915. [PMID: 32984610 PMCID: PMC7495052 DOI: 10.1016/j.heliyon.2020.e04915] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/08/2020] [Accepted: 09/08/2020] [Indexed: 12/30/2022] Open
Abstract
In an attempt to reduce the massive application of the toxic chemical pesticides, essential oils (EOs) of Achillea biebersteinii and Juniperus procera were obtained through hydrodistillation and analyzed using (GC–FID) and (GC–MS). α-terpinene and p-cymene were detected as the major components in the EO of A. biebersteinii, while eugenol and ß-caryophyllene were the major constituents in the EO of J. procera. The plant EOs and major fractions act as considerable mosquitocides against Aedes aegypti L, the common transmitter of Dengue fever. The EOs and major fractions were tested at 6.25, 12.5, 25, 50 and 100 μl/l. Insect mortality was time and dose-dependent, and the adult stage was more sensitive than larvae. At a concentration of 50 μl/l, 24 post treatment larval and adult mortality ranged between (40.3 and 89.3%) and (51.4 and 95.6%), respectively. The LC50 values ranged between 12.2 and 70.1 μl/l against larvae and between 10.1 and 63.12 μl/l against adults. All of the crude EOs were more potent than their major fractions. Eugenol and ß-caryophyllene showed strong mosquitocidal activity than p-cymene and α-terpinene. The corrected percentage mortality was increased over time with all of the test materials. In terms of lethal time required to kill 50% of the population (LT50), a concentration of 100 μl/l of J. procera EO showed LT50 values of 2.3 and 1.7 h against larvae and adult, respectively. The EOs induced considerable inhibition of acetylcholinesterase activity, where J. procera crude oil (IC50 = 13.12mM) and eugenol (IC50 = 19.65mM) were the most potent. Results proved that the test plant oils and their major fractions could be developed as natural pest control agents to control A. aegypti.
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Affiliation(s)
- Abdulrhman A Almadiy
- Department of Biology, Faculty of Arts and Sciences, Najran University, 1988 Najran, Saudi Arabia
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12
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Hung NH, Huong LT, Chung NT, Truong NC, Dai DN, Satyal P, Tai TA, Hien VT, Setzer WN. Premna Species in Vietnam: Essential Oil Compositions and Mosquito Larvicidal Activities. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1130. [PMID: 32878346 PMCID: PMC7570284 DOI: 10.3390/plants9091130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/22/2020] [Accepted: 08/31/2020] [Indexed: 01/20/2023]
Abstract
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 Premnamekongensis 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 LC50 < 65 μg/mL. The leaf essential oils of Premnacambodiana from Chu Mom Ray National Park and Premnamekongensis from Ngoc Linh Nature Reserve showed the best larvicidal activities with 24-h LC50 of 16.8 and 18.0 μg/mL, respectively. The essential oil compositions and larvicidal activities of P. cambodiana, Premna flavescens, Premnamaclurei, P. mekongensis, and Premnapuberula 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%).
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Affiliation(s)
- Nguyen Huy Hung
- 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;
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghe An Province, Vietnam;
| | - Nguyen Thanh Chung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam; (N.T.C.); (D.N.D.)
| | - Nguyen Cong Truong
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 43000, Nghe An Province, Vietnam;
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam; (N.T.C.); (D.N.D.)
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 43000, Nghe An Province, Vietnam;
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA;
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam;
| | - Vu Thi Hien
- Faculty of Hydrometerology, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City 70000, Vietnam;
| | - William N Setzer
- 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
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de Souza MA, da Silva L, Dos Santos MAC, Macêdo MJF, Lacerda-Neto LJ, Coutinho HDM, de Oliveira LCC, Cunha FAB. Larvicidal Activity of Essential Oils Against Aedes aegypti (Diptera: Culicidae). Curr Pharm Des 2020; 26:4092-4111. [PMID: 32767924 DOI: 10.2174/1381612826666200806100500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 07/20/2020] [Indexed: 12/23/2022]
Abstract
The Aedes aegypti is responsible for the transmission of arboviruses, which compromise public health. In the search for synthetic product alternatives, essential oils (OEs) have been highlighted by many researchers as natural insecticides. This systematic review (SR) was performed according to PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and its objective was to evaluate studies addressing OEs with larvicidal properties against Ae. aegypti, through electronic database searches (Pubmed, Science Direct and Scielo), covering an overview of the plant sources OEs, which plant parts were used, the extraction methods, analytical techniques, major and/or secondary constituents with greater percentages, as well as the LC50s responsible for larval mortality. Following study analysis, plants distributed across 32 families, 90 genera and 175 species were identified. The Lamiaceae, Myrtaceae, Piperaceae, Asteraceae, Rutaceae, Euphorbiaceae and Lauraceae families obtained the highest number of species with toxic properties against larvae from this vector. Practically all plant parts were found to be used for OE extraction. Hydrodistillation and steam distillation were the main extraction methods identified, with GC-MS/GC-FID representing the main analytical techniques used to reveal their chemical composition, especially of terpene compounds. In this context, OEs are promising alternatives for the investigation of natural, ecologically correct and biodegradable insecticides with the potential to be used in Ae. aegypti control programs.
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Affiliation(s)
- Mikael A de Souza
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Larissa da Silva
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Maria A C Dos Santos
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Márcia J F Macêdo
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Luiz J Lacerda-Neto
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Henrique D M Coutinho
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Lígia C C de Oliveira
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
| | - Francisco A B Cunha
- Department of Biological Chemistry, Regional University of Cariri, Crato (CE), Brazil
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Chau DTM, Chung NT, Huong LT, Hung NH, Ogunwande IA, Dai DN, Setzer WN. Chemical Compositions, Mosquito Larvicidal and Antimicrobial Activities of Leaf Essential Oils of Eleven Species of Lauraceae from Vietnam. PLANTS 2020; 9:plants9050606. [PMID: 32397613 PMCID: PMC7284511 DOI: 10.3390/plants9050606] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Abstract
The Lauraceae is a family rich in aromatic and medicinal plants. Likewise, essential oils derived from members of this family have demonstrated a myriad of biological activities. It is hypothesized that members of the Lauraceae from Vietnam will yield essential oils that may be useful in controlling mosquito populations and treating microbial infections. In this work, the leaf essential oils of eleven species of Lauraceae (Beilschmiedia erythrophloia, B. robusta, B. yunnanensis, Cryptocarya concinna, C. impressa, C. infectoria, Litsea viridis, Machilus balansa, M. grandifolia, Neolitsea ellipsoidea, and Phoebe angustifolia) have been obtained by hydrodistillation and the chemical compositions analyzed by gas chromatography – mass spectrometry (GC-MS) and gas chromatography with flame ionization detection (GC-FID). The essential oils were screened for larvicidal activity against Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus, and for antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, Salmonella enterica, and Candida albicans. The leaf essential oil of N. ellipsoidea, rich in (E)-β-ocimene (87.6%), showed excellent larvicidal activity against Ae. aegypti with a 24 h LC50 of 6.59 μg/mL. The leaf essential oil of C. infectoria, dominated by germacrene D (55.5%) and bicyclogermacrene (11.4%), exhibited remarkable larvicidal activity against Cx. quinquefasciatus (48 h LC50 = 0.40 μg/mL). N. ellipsoidea leaf essential oil also demonstrated notable antibacterial activity against E. faecalis and B. cereus with minimum inhibitory concentration (MIC) values of 16 μg/mL, while the leaf essential oil of C. impressa showed excellent anticandidal with an MIC of 16 μg/mL. Leaf essential oils from the Lauraceae should be considered for utilization as alternative agents for controlling mosquito populations and as antimicrobial agents.
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Affiliation(s)
- Dao Thi Minh Chau
- Institute of Biochemical Technology and Environment, Vinh University, 182 Le Duan, Vinh City 4300, Nghệ An Province, Vietnam;
| | - Nguyen Thanh Chung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay 10072, Hanoi, Vietnam;
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 4300, Nghệ An Province, Vietnam;
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 5000, Vietnam;
| | - Isiaka A. Ogunwande
- Foresight Institute of Research and Translation, University Road, Aleku Area, Osogbo 230271, Nigeria;
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay 10072, Hanoi, Vietnam;
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 4300, Nghe An Province, Vietnam
- Correspondence: (D.N.D.); (W.N.S.)
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Correspondence: (D.N.D.); (W.N.S.)
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15
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An NTG, Huong LT, Satyal P, Tai TA, Dai DN, Hung NH, Ngoc NTB, Setzer WN. Mosquito Larvicidal Activity, Antimicrobial Activity, and Chemical Compositions of Essential Oils from Four Species of Myrtaceae from Central Vietnam. PLANTS 2020; 9:plants9040544. [PMID: 32331486 PMCID: PMC7238417 DOI: 10.3390/plants9040544] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/05/2020] [Accepted: 04/19/2020] [Indexed: 12/16/2022]
Abstract
Mosquitoes are important vectors of several diseases, and control of these insects is imperative for human health. Insecticides have proven useful in controlling mosquito populations, but insecticide resistance and environmental concerns are increasing. Additionally, emerging and re-emerging microbial infections are problematic. Essential oils have been shown to be promising mosquito larvicidal agents as well as antimicrobial agents. In this work, the essential oils from four species of Myrtaceae (Baeckea frutescens, Callistemon citrinus, Melaleuca leucadendra, and Syzygium nervosum) growing wild in central Vietnam have been obtained by hydrodistillation and analyzed by gas chromatographic techniques. The essential oils have been screened for mosquito larvicidal activity against Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus, and for antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, and Candida albicans. Callistemon citrinus fruit essential oil, rich in α-pinene (35.1%), 1,8-cineole (32.4%), limonene (8.2%), and α-terpineol (5.8%) showed good larvicidal activity with 24-h LC50 = 17.3 μg/mL against both Ae. aegypti and Cx. quinquefasciatus, and good antibacterial activity against E. faecalis (minimum inhibitory concentration (MIC) = 16 μg/mL) The 48-h larvicidal activities of M. leucadendra leaf essential oil, rich in α-eudesmol (17.6%), guaiol (10.9%), linalool (5.1%), (E)-caryophyllene (7.0%), and bulnesol (3.6%) were particularly notable, with LC50 of 1.4 and 1.8 μg/mL on Ae. aegypti and Cx. quinquefasciatus. Similarly, M. leucadendra bark essential oil, with α-eudesmol (24.1%) and guaiol (11.3%), showed good antibacterial activity against. E. faecalis. Both B. frutescens and C. citrinus leaf essential oils demonstrated anti-Candida activities with MIC values of 16 μg/mL. The results of this investigation suggest that essential oils derived from the Myrtaceae may serve as "green" alternatives for the control of mosquitoes and/or complementary antimicrobial agents.
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Affiliation(s)
- Nguyen Thi Giang An
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghe An Province, Vietnam; (N.T.G.A.); (L.T.H.)
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghe An Province, Vietnam; (N.T.G.A.); (L.T.H.)
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA;
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 50000, Vietnam;
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10072, Vietnam;
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 4300, Nghe An Province, Vietnam
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
- Correspondence: (N.H.H.); (W.N.S.); Tel.: +84-967-036-828 (N.H.H.); +1-256-824-6519 (W.N.S.)
| | - Nguyen Thi Bich Ngoc
- Pedagogical Institute of Science, Vinh University, 182 Le Duan, Vinh City 43000, Vietnam;
| | - William N. Setzer
- 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
- Correspondence: (N.H.H.); (W.N.S.); Tel.: +84-967-036-828 (N.H.H.); +1-256-824-6519 (W.N.S.)
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