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Linh NN, Huong NTM, Dai DN, Giang NTA, Huong LT, Thuy TTT, Son NT. Camellia annamensis (Theaceae): phytochemical analysis, cytotoxic, antioxidative, and antimicrobial activities. Nat Prod Res 2024:1-7. [PMID: 38225908 DOI: 10.1080/14786419.2024.2302900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 01/02/2024] [Indexed: 01/17/2024]
Abstract
Cytotoxic, antioxidative, and antimicrobial activities of Camellia annamensis, and its chemical compositions were first provided in the current study. Phenolic contents in the methanol extracts of its leaves and flowers were 222.73 ± 0.09 and 64.44 ± 0.08 mg GAE/g extract, whereas flavonoid contents in these parts were 108.80 ± 0.28 and 131.26 ± 0.39 mg rutin/g extract, respectively. By using HPLC-DAD analysis, gallic acid (43.72 ± 0.09 - 81.89 ± 1.83 mg/g) and (-)-epigallocatechin gallate (67.31 ± 1.26 - 70.68 ± 7.82 mg/g) were identified as the major compounds. C. annamensis leaf and flower extracts were moderately cytotoxic against A549, HT-29, SK-Mel-2, MCF-7, HepG2, HeLa, and MKN-7. Particularly, they are better than the standards trolox (IC50 7.57 ± 0.23 µg/mL) in lipid peroxidation inhibitory evaluation, and streptomycin (IC50/MIC = 45.34-50.34/128-256 µg/mL) in antimicrobial assay against the Gram-positive bacteria Enterococcus faecalis ATCC299212, Staphylococcus aureus ATCC25923, and the Gram-negative bacterium Salmonella enterica ATCC13076.
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Affiliation(s)
- Nguyen Ngoc Linh
- Faculty of Pharmacy, Thanh Do University, Hoai Duc, Hanoi, Vietnam
| | - Nguyen Thi Mai Huong
- Faculty of Food Technology, University of Economics-Technology for Industry, Hai Ba Trung, Hanoi, Vietnam
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghean University of Economics, Vinh, Nghean, Vietnam
| | - Nguyen Thi An Giang
- Faculty of Biology, College of Education, Vinh University, Vinh, Nghean, Vietnam
| | - Le Thi Huong
- Faculty of Biology, College of Education, Vinh University, Vinh, Nghean, Vietnam
| | - Ta Thi Thu Thuy
- Institute of Biotechnology and Food Technology, Ha Noi Open University, Hai Ba Trung, Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy Science and Technology (VAST), Cau Giay, Hanoi, Vietnam
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Huong LT, Hung NH, Linh NN, Pham TV, Dai DN, Hop NQ, Setzer WN, Son NT, Andlauer W, Brück WM. Essential Oils of Five Syzygium Species Growing Wild in Vietnam: Chemical Compositions and Antimicrobial and Mosquito Larvicidal Potentials. Molecules 2023; 28:7505. [PMID: 38005226 PMCID: PMC10672915 DOI: 10.3390/molecules28227505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023] Open
Abstract
The essential oils of five Vietnamese Syzygium species (Syzygium levinei, S. acuminatissimum, S. vestitum, S. cumini, and S. buxifolium) were first hydro-distilled and analyzed using GC-FID/MS (gas chromatography-flame ionization detection/mass spectrometry). Monoterpene hydrocarbons, sesquiterpene hydrocarbons, and oxygenated sesquiterpenoids were the main chemical classes in these oils. All these essential oils showed good-excellent antimicrobial activities against Gram-positive bacteria Enterococcus faecalis, Staphylococcus aureus, and Bacillus cereus, and the yeast Candida albicans. S. levinei leaf essential oil, rich in bicyclogermacrene (25.3%), (E)-β-elemene (12.2%), (E)-caryophyllene (8.2%), and β-selinene (7.4%), as well as S. acuminatissimum fruit essential oil containing (E)-caryophyllene (14.2%), α-pinene (12.1%), caryophyllene oxide (10.9%), β-selinene (10.8%), α-selinene (8.0%), and α-humulene (5.7%), established the same MIC value of 8 µg/mL against E. faecalis and B. cereus, which were much better than the positive control streptomycin (MIC 128-256 µg/mL). The studied essential oils showed the potential to defend against mosquitoes since they caused the 24 and 48 h LC50 values of less than 50 µg/mL against the growth of Culex quinquefasciatus and Aedes aegypti larvae. Especially, S. buxifolium leaf essential oil strongly inhibited Ae. aegypti larvae with 24 and 48 h LC50 values of 6.73 and 6.73 µg/mL, respectively, and 24 and 48 h LC90 values of 13.37 and 10.83 µg/mL, respectively. These findings imply that Vietnamese Syzygium essential oils might have potential for use as supplemental antibacterial agents or as "green" alternatives for the control of mosquitoes.
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Affiliation(s)
- Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Vietnam;
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 50000, Vietnam;
| | - Nguyen Ngoc Linh
- Faculty of Pharmacy, Thanh Do University, Kim Chung, Hoai Duc, Hanoi City 10000, Vietnam
| | - Ty Viet Pham
- Faculty of Chemistry, University of Education, Hue University, 34 Le Loi, Hue City 530000, Vietnam;
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An University of Economics, 51-Ly Tu Trong, Vinh City 43000, Vietnam;
| | - Nguyen Quang Hop
- Faculty of Chemistry, Hanoi Pedagogical University 2 (HPU2), 32 Nguyen Van Linh, Xuan Hoa, Phuc Yen 15000, Vietnam;
| | - William N. Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA;
- Department of Chemistry, University of Alabama in Huntsville, 301 Sparkman, Huntsville, AL 35899, USA
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi 10000, Vietnam
| | - Wilfried Andlauer
- Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland Valais, Rue de l’Industrie 19, 1950 Sion, Switzerland;
| | - Wolfram Manuel Brück
- Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland Valais, Rue de l’Industrie 19, 1950 Sion, Switzerland;
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Huong LT, The Son N, Sam LN, Minh PN, Luyen ND, Hung NH, Dai DN. Essential oils of the ginger plants Meistera caudata and Conamomum vietnamense: chemical compositions, antimicrobial, and mosquito larvicidal activities. Z NATURFORSCH C 2023; 78:337-344. [PMID: 37167216 DOI: 10.1515/znc-2022-0244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 04/27/2023] [Indexed: 05/13/2023]
Abstract
The current study describes the chemical identification, antimicrobial, and mosquito larvicidal activities of essential oils from Meistera caudata and Conamomum vietnamense, growing in Vietnam. Essential oils were extracted from the leaves and rhizomes, and characterized by the GC-FID/MS (gas chromatography-flame ionization detection/mass spectrometry) analysis. Monoterpenes (33.1-89.2 %) were the main chemical class found in these oils. β-Pinene (30.8 %) and α-pinene (23.8 %) were two major compounds in M. caudata leaf oil. C. vietnamense leaf and rhizome essential oils were dominated by 1,8-cineole (47.9-62.0 %) and limonene (10.3-16.2 %). With the same MIC (minimum inhibitory concentration) value of 25 μg/mL, C. vietnamense leaf and rhizome essential oils strongly inhibited the growth of Gram-positive bacteria Staphylococcus aureus ATCC 29213 and Bacillus subtilis ATCC 6501, respectively. For 24 and 48-h treatments, C. vietnamense leaf essential oil strongly controlled the growth of mosquito Aedes aegypti with the respective LC50 values of 7.67 and 6.73 μg/mL, and the respective LC90 values of 13.37 and 10.83 μg/mL. In the same manner, C. vietnamense rhizome essential oil also showed strong mosquito larvicidal activity against Aedes albopictus with the LC50 values of 12.37 and 12.00 μg/mL, and the LC90 values of 20.56 and 18.58 μg/mL, respectively. C. vietnamense essential essential oils containing a high amount of 1,8-cineole are generally better than M. caudata essential essential oils in both two biological assays.
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Affiliation(s)
- Le Thi Huong
- Faculty of Biology, College of Education, Vinh University, 182 Le Duan, Vinh City, Nghệ An Province 4300, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Ly Ngoc Sam
- Institute of Tropical Biology, VAST, 85 Tran Quoc Toan, District 3, Ho Chi Minh City, Vietnam
| | - Phan Nhat Minh
- Natural Product Laboratory, Institute of Chemical Technology, VAST, 01A Thạnh Loc, 29 Thạnh Loc, District 12, Ho Chi Minh City, Vietnam
| | - Nguyen Dinh Luyen
- Institute of Natural Product Chemistry, VAST, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam
| | - Nguyen Huy Hung
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Danang, Vietnam
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An University of Economics, 51 Ly Tu Trong, Vinh, Nghean, Vietnam
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Viet NT, Sam LN, Huong LT, Dai DN, Ogunwande IA. Chemical Compositions and Antimicrobial Activities of Essential Oils from the Leaves and Rhizomes of Meistera cristatissima from Vietnam. Chem Nat Compd 2023. [DOI: 10.1007/s10600-023-04005-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Hung NH, Quan PM, Dai DN, Satyal P, Huong LT, Giang LD, Hung LT, Setzer WN. Environmentally-Friendly Pesticidal Activities of Callicarpa and Karomia Essential Oils from Vietnam and Their Microemulsions. Chem Biodivers 2023; 20:e202200210. [PMID: 36732885 DOI: 10.1002/cbdv.202200210] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/04/2023]
Abstract
There is an ongoing interest to identify alternative pesticidal agents to avoid the chronic problems associated with synthetic pesticides. Essential oils have shown promise as botanical pest control agents. In the present study, the essential oils of four members of the Lamiaceae (Callicarpa candicans, C. erioclona, C. macrophylla, and Karomia fragrans; Vietnamese names: Nàng nàng, Tu châu lông mem, Tu châu lá to and Cà diện, respectively), obtained from wild populations in Vietnam, have been obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry. The essential oils were formulated into microemulsions and the essential oils and their microemulsions were screened for mosquito larvicidal activity against Aedes aegypti, Aedes albopictus, Culex quinquefasciatus, and for molluscicidal activity against Pomacea canaliculata. Atractylone and (E)-caryophyllene dominated the volatiles of C. candicans (CCEO) and C. erioclona (CEEO), while the major component in C. macrophylla (CMEO) and K. fragrans (KFEO) was (E)-caryophyllene. The essential oils and microemulsions of both C. candicans and C. erioclona exhibited excellent larvicidal activity against all three mosquito species (Ae. aegypti, Ae. albopictus, and Cx. quinquefasciatus) with LC50 values <10 μg/mL. Additionally, the larvicidal activity of the microemulsions were significantly improved compared with their free essential oils, especially for C. candicans and C. erioclona. All four essential oils and their microemulsions showed excellent molluscicidal activity with LC50 <10 μg/mL. In most cases, the essential oils and microemulsions showed greater pesticidal activity against target organisms than the non-target freshwater fish, Oreochromis niloticus. The in silico studies on physicochemical and ADMET properties of the major components in the studied essential oils were also investigated and most of the compounds possessed a favorable ADMET profile. Computational modeling studies of the studied compounds demonstrated a favorable binding interaction with the mosquito odorant-binding protein target and support atractylone, β-selinene, and caryophyllene oxide as potential inhibitors. Based on the observed pesticidal activities of the essential oils and their microemulsions, the Callicarpa species and K. fragrans should be considered for potential cultivation and further exploration as botanical pesticidal agents.
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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, 50000, Vietnam
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang, 50000, Vietnam
| | - Pham Minh Quan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi, 10000, Vietnam
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, 100000, 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
- 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 100, Lehi, UT 84043, USA
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City, 43000, Nghe An Province, Vietnam
| | - Le Duc Giang
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City, 43000, Nghe An Province, Vietnam
| | - Le Thanh Hung
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City, 43000, Nghe An Province, Vietnam
| | - William N Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Huong LT, The Son N, Sam LN, Phan NM, Dinh Luyen N, Hao NT, Dai DN. Chemical Compositions and Antimicrobial Activity of Essential Oils From the Leaves of 4 Vietnamese Zingiberaceae Species. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221145917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Essential oils of the leaves of 4 Vietnamese Zingiberaceae species were first obtained by hydro-distilled, and their chemical compositions were identified by gas chromatography-flame ionization detection/mass spectrometry . β-Pinene (21.7%), sabinene (12.8%), and α-pinene (8.0%) were the main compounds in Wurfbainia tenella leaf oil. The essential oil of Hedydium villosum var. tenuifolium leaf was dominated by β-pinene (23.7%), β-caryophyllene (21.6%), and 1,8-cineole (14.0%). β-Pinene (27.4%), α-pinene (21.2%), limonene (12.1%), and myrcene (8.6%) were the characteristic components of Meistera sudae leaf oil, and β-pinene (32.8%) and ( E)-methyl cinnamate (15.8%) of Alpinia hongiaoensis leaf oil. The 4 oil samples exhibited antimicrobial activity against Bacillus subtilis (American Type Culture Collection [ATCC] 27212), Staphylococcus aureus (ATCC 12222), Escherichia coli (ATCC 8739), Pseudomonas aeruginosa (ATCC 25923), Aspergillus niger (ATCC 9763), Fusarium oxysporum (ATCC 48112), Candida albicans (ATCC 10231), and Saccharomyces cerevisiae (ATCC 2601) at different levels. Especially, the leaf oil of M sudae showed strong activity against B subtilis, S aureus, and S cerevisiae with a minimum inhibitory concentration (MIC) value of 25.0 µg/mL.
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Affiliation(s)
- Le Thi Huong
- Faculty of Biology, College of Education, Vinh University, Vinh City, Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
| | - Ly Ngoc Sam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
- Institute of Tropical Biology, VAST, Ho Chi Minh City, Vietnam
| | - Nhat Minh Phan
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
- Natural Products Laboratory, Institute of Chemical Technology, VAST, Ho Chi Minh City, Vietnam
| | | | - Nguyen Thanh Hao
- Department of Biology, Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry, and Fishery, Nghe An University of Economics, Nghean, Vietnam
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Hoi TM, Satyal P, Huong LT, Hau DV, Binh TD, Duyen DTH, Dai DN, Huy NG, Chinh HV, Hoa VV, Hung NH, Setzer WN. Essential Oils from Vietnamese Asteraceae for Environmentally Friendly Control of Aedes Mosquitoes. Molecules 2022; 27:molecules27227961. [PMID: 36432060 PMCID: PMC9699393 DOI: 10.3390/molecules27227961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/27/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022]
Abstract
Mosquitoes, in addition to being a biting nuisance, are vectors of several pathogenic viruses and parasites. As a continuation of our work identifying abundant and/or invasive plant species in Vietnam for use as ecologically friendly pesticidal agents, we obtained the essential oils of Blumea lacera, Blumea sinuata, Emilia sonchifolia, Parthenium hysterophorus, and Sphaeranthus africanus; analyzed the essential oils using gas chromatographic techniques; and screened the essential oils for mosquito larvicidal activity against Aedes aegypti and Aedes albopictus. The most active larvicidal essential oils were B. sinuata, which was rich in thymohydroquinone dimethyl ether (29.4%), (E)-β-caryophyllene (19.7%), α-pinene (8.8%), germacrene D (7.8%), and α-humulene (4.3%), (24-h LC50 23.4 and 29.1 μg/mL) on Ae. aegypti and Ae. albopictus, respectively, and Emilia sonchifolia, dominated by 1-undecene (41.9%) and germacrene D (11.0%), (24-h LC50 30.1 and 29.6 μg/mL) on the two mosquito species. The essential oils of P. hysterophorus and S. africanus were also active against mosquito larvae. Notably, B. sinuata, P. hysterophorus, and S. africanus essential oils were not toxic to the non-target water bug, Diplonychus rusticus. However, E. sonchifolia essential oil showed insecticidal activity (24-h LC50 48.1 μg/mL) on D. rusticus. Based on these results, B. sinuata, P. hysterophorus, and S. africanus essential oils appear promising for further investigations.
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Affiliation(s)
- Tran Minh Hoi
- Department of Plant Resources, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | | | - Le Thi Huong
- School of Natural Science Education, Vinh University, Vinh City 43000, Vietnam
| | - Dang Viet Hau
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Tran Duc Binh
- Department of Plant Resources, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Dang Thi Hong Duyen
- Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, Vinh City 43000, Vietnam
| | - Ngo Gia Huy
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
| | - Hoang Van Chinh
- Faculty of Natural Sciences, Hong Duc University, Thanh Hoa 440000, Vietnam
| | - Vo Van Hoa
- Department of Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
- Department of Pharmacy, Duy Tan University, Da Nang 550000, Vietnam
- Correspondence: (N.H.H.); (W.N.S.)
| | - William N. Setzer
- Aromatic Plant Research Center, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Correspondence: (N.H.H.); (W.N.S.)
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Hung NH, Quan PM, Satyal P, Dai DN, Hoa VV, Huy NG, Giang LD, Ha NT, Huong LT, Hien VT, Setzer WN. Acetylcholinesterase Inhibitory Activities of Essential Oils from Vietnamese Traditional Medicinal Plants. Molecules 2022; 27:molecules27207092. [PMID: 36296686 PMCID: PMC9610647 DOI: 10.3390/molecules27207092] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/01/2022] [Accepted: 10/10/2022] [Indexed: 12/05/2022] Open
Abstract
Essential oils are promising as environmentally friendly and safe sources of pesticides for human use. Furthermore, they are also of interest as aromatherapeutic agents in the treatment of Alzheimer’s disease, and inhibition of the enzyme acetylcholinesterase (AChE) has been evaluated as an important mechanism. The essential oils of some species in the genera Callicarpa, Premna, Vitex and Karomia of the family Lamiaceae were evaluated for inhibition of electric eel AChE using the Ellman method. The essential oils of Callicarpa candicans showed promising activity, with IC50 values between 45.67 and 58.38 μg/mL. The essential oils of Callicarpa sinuata, Callicarpa petelotii, Callicarpa nudiflora, Callicarpa erioclona and Vitex ajugifolia showed good activity with IC50 values between 28.71 and 54.69 μg/mL. The essential oils Vitex trifolia subsp. trifolia and Callicarpa rubella showed modest activity, with IC50 values of 81.34 and 89.38, respectively. trans-Carveol showed an IC50 value of 102.88 µg/mL. Molecular docking and molecular dynamics simulation were performed on the major components of the studied essential oils to investigate the possible mechanisms of action of potential inhibitors. The results obtained suggest that these essential oils may be used to control mosquito vectors that transmit pathogenic viruses or to support the treatment of Alzheimer’s disease.
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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
| | - Pham Minh Quan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi 100000, Vietnam
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, 51-Ly Tu Trong, Vinh City 43000, Vietnam
| | - Vo Van Hoa
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
| | - Ngo Gia Huy
- 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 Duc Giang
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Vietnam
| | - Nguyen Thi Ha
- Drug, Comestic and Food Quality Control Center of Ha Tinh Province.46, Ha Hoang Street, Thach Trung Commune, Ha Tinh City 481300, Vietnam
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Vietnam
| | - Vu Thi Hien
- Faculty of Hydrometeorology, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City 70000, Vietnam
- Correspondence: (V.T.H.); (W.N.S.)
| | - William N. Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
- Correspondence: (V.T.H.); (W.N.S.)
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10
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Hung NH, Dai DN, Cong TN, Dung NA, Linh LD, Hoa VV, Hien TT, Chuong NTH, Hien VT, Nguyen BV, Setzer WN. Pesticidal Activities of Callicarpa and Premna Essential Oils From Vietnam. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221110660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Mosquito-borne diseases are a consistent problem in Vietnam. Additionally, freshwater snail species are agricultural pests and are known to be intermediate hosts for several parasitic worms. There is a need for new and complementary botanical pesticidal agents for controlling these pests and essential oils have shown promise. In this work, essential oils from 2 species of Callicarpa ( C. rubella and C. sinuata) and 4 species of Premna ( P. chevalieri, P. corymbosa, P. maclurei, and P. tomentosa) were screened for mosquito larvicidal activity against Aedes albopictus and Culex quinquefasciatus and for molluscicidal activity against 3 freshwater snail species, Gyraulus convexiusculus, Pomacea canaliculata, and Tarebia granifera. Callicarpa rubella essential oil showed exceptional larvicidal activity against Cx. quinquefasciatus with 24-h LC50 of 9.8 μg/mL. In addition to C. rubella, the essential oils of P. chevalieri and P. tomentosa showed notable molluscicidal activities against P. canaliculata with LC90 values ≤ 20 μg/mL. These Callicarpa and Premna essential oils were all rich in sesquiterpenes and should be considered for continued investigation as botanical pesticidal agents.
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Affiliation(s)
- Nguyen Huy Hung
- Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Viet Nam
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, Vinh City, Nghe An Province, Vietnam
| | - Truong Nguyen Cong
- Faculty of Agriculture, Forestry and Fishery, Nghe An College of Economics, Vinh City, Nghe An Province, Vietnam
| | - Nguyen Anh Dung
- School of Natural Science Education, Vinh University, Vinh City, Nghe An Province, Vietnam
| | - Le Duy Linh
- School of Natural Science Education, Vinh University, Vinh City, Nghe An Province, Vietnam
| | - Vo Van Hoa
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Viet Nam
| | - Tran Thu Hien
- Faculty of Natural Sciences, Duy Tan University, Da Nang, Viet Nam
| | | | - Vu Thi Hien
- Faculty of Hydrometeorology, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, Vietnam
| | | | - William N. Setzer
- Aromatic Plant Research Center, Lehi, UT, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL, USA
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11
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Huy Hung N, Ngoc Dai D, Satyal P, Thi Huong L, Thi Chinh B, Quang Hung D, Anh Tai T, Setzer WN. Lantana camara Essential Oils from Vietnam: Chemical Composition, Molluscicidal, and Mosquito Larvicidal Activity. Chem Biodivers 2021; 18:e2100145. [PMID: 33780581 DOI: 10.1002/cbdv.202100145] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 03/29/2021] [Indexed: 11/08/2022]
Abstract
Lantana camara is a troublesome invasive plant introduced to many tropical regions, including Southeast Asia. However, the plant does hold promise as a source of essential oils that may be explored for potential use. Fresh water snails such as Pomacea canaliculata, Gyraulus convexiusculus, and Tarebia granifera can be problematic agricultural pests as well as hosts for parasitic worms. Aedes and Culex mosquitoes are notorious vectors of numerous viral pathogens. Control of these vectors is of utmost importance. In this work, the essential oil compositions, molluscicidal, and mosquito larvicidal activities of four collections of L. camara from north-central Vietnam have been investigated. The sesquiterpene-rich L. camara essential oils showed wide variation in their compositions, not only compared to essential oils from other geographical locations (at least six possible chemotypes), but also between the four samples from Vietnam. L. camara essential oils showed molluscicidal activities comparable to the positive control, tea saponin, as well as other botanical agents. The median lethal concentrations (LC50 ) against the snails were 23.6-40.2 μg/mL (P. canaliculata), 7.9-29.6 μg/mL (G. convexiusculus), and 15.0-29.6 μg/mL (T. granifera). The essential oils showed good mosquito larvicidal activities with 24-h LC50 values of 15.1-29.0 μg/mL, 26.4-53.8 μg/mL, and 20.8-59.3 μg/mL against Ae. aegypti, Ae. albopictus, and Cx. quinquefasciatus, respectively. The essential oils were more toxic to snails and mosquito larvae than they were to the non-target water bug, Diplonychus rusticus (24-h LC50 =103.7-162.5 μg/mL). Sesquiterpene components of the essential oils may be acting as acetylcholinesterase (AChE) inhibitors. These results suggest that the invasive plant, L. camara, may be a renewable botanical pesticidal agent.
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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, 50000, Vietnam.,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, 10000, Vietnam.,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 100, Lehi, UT 84043, USA
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City, 43000, Nghe An Province, Vietnam
| | - Bui Thi Chinh
- Faculty of Biology, College of Education, Hue University, 34 Le Loi, Hue City, 49000, Vietnam
| | - Dinh Quang Hung
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang, 50000, Vietnam
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang, 50000, Vietnam
| | - William N Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA.,Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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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) 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] [What about the content of this article? (0)] [Affiliation(s)] [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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13
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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 (Basel) 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] [What about the content of this article? (0)] [Affiliation(s)] [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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14
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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 (Basel) 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Chung NT, Huong LT, Hung NH, Hoi TM, Dai DN, Setzer WN. Chemical Composition of Actinodaphne pilosa Essential Oil From Vietnam, Mosquito Larvicidal Activity, and Antimicrobial Activity. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20917792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Leaves of Actinodaphne pilosa were collected at 2 different seasons from the Pù Hoạt Nature Reserve, Vietnam. The leaf samples were hydrodistilled to give essential oils, which were analyzed by gas chromatography (GC)–mass spectrometry and GC-flame ionization detection. The major components in the essential oils were α-pinene, ( Z)-β-ocimene, ( E)-β-ocimene, β-caryophyllene, germacrene D, bicyclogermacrene, and spathulenol. The essential oils were screened for antimicrobial activity against Enterococcus faecalis, Staphylococcus aureus, Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans, as well as mosquito larvicidal activity against Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus. Actinodaphne pilosa leaf essential oils showed broad antimicrobial activity (minimum inhibitory concentration = 32, 64, 64, 16, and 16 μg/mL against E. faecalis, S. aureus, B. cereus, P. aeruginosa, and C. albicans, respectively) and excellent larvicidal activity (24-hour 50% lethal concentration = 19.0, 24.7, and 48.1 μg/mL against A. aegypti, A. albopictus, and C. quinquefasciatus, respectively).
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Affiliation(s)
- Nguyen Thanh Chung
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, Vietnam
| | - Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Tran Minh Hoi
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Do Ngoc Dai
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Faculty of Agriculture, Forestry and Fishery, Vinh City, Vietnam
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, USA
- Aromatic Plant Research Center, Lehi, UT, USA
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Hung NH, Satyal P, Dai DN, Tai TA, Huong LT, Hong Chuong NT, Hieu HV, Tuan PA, Vuong PV, Setzer WN. Chemical Compositions of Crassocephalum crepidioides Essential Oils and Larvicidal Activities Against Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19850033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | | | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An Economics University, Vinh City, Vietnam
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, Da Nang, Vietnam
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, Vietnam
| | - Nguyen Thị Hong Chuong
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Ho Viet Hieu
- Parasitology and Entomology Unit, Department of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Pham Anh Tuan
- Parasitology and Entomology Unit, Department of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Pham Van Vuong
- Pharmacy Department, The 17 Military Hospital, Da Nang, Vietnam
| | - William N. Setzer
- Aromatic Plant Research Center, Lehi, UT, USA
- Department of Chemistry, University of Alabama in Huntsville, AL, USA
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17
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Hung NH, Thi Hong Chuong N, Satyal P, Hieu HV, Dai DN, Huong LT, Sinh LH, Thi Bich Ngoc N, Hien VT, Setzer WN. Mosquito Larvicidal Activities and Chemical Compositions of the Essential Oils of Leucas Zeylanica Growing Wild in Vietnam. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19842675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Nguyen Huy Hung
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Nguyen Thi Hong Chuong
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | | | - Ho Viet Hieu
- Parasitology and Entomology Unit, Department of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghệ An Economics University, Vinh, Vietnam
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, Vietnam
| | - Le Hoang Sinh
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | | | - Vu Thi Hien
- Faculty of Hydrometeorology, Ho Chi Minh City University of Natural Resources and Environment, Vietnam
| | - William N. Setzer
- Aromatic Plant Research Center, Lehi, UT, USA
- Department of Chemistry, University of Alabama in Huntsville, AL, USA
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18
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Hung NH, Satyal P, Hieu HV, Chuong NTH, Dai DN, Huong LT, Tai TA, Setzer WN. Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam. Insects 2019; 10:insects10020047. [PMID: 30717463 PMCID: PMC6410152 DOI: 10.3390/insects10020047] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/26/2019] [Accepted: 01/31/2019] [Indexed: 12/26/2022]
Abstract
Mosquito-borne infections are a constant problem in Vietnam, and mosquito vector control is a primary approach to control these infections. Essential oils represent environmentally friendly alternatives to synthetic pesticides for mosquito control. The essential oils of two weedy species in Vietnam, Erechtites hieraciifolius and E. valerianifolius, have been obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry. The essential oils have been screened for mosquito larvicidal activity against Aedes albopictus, Ae. aegypti, and Culex quinquefasciatus. The essential oil from the aerial parts of E. hieraciifolius was rich in α-pinene (14.5%), limonene (21.4%), and caryophyllene oxide (15.1%), while E. valerianifolius essential oil was dominated by myrcene (47.8%) and α-pinene (30.2%). Both essential oils showed good larvicidal activity against Ae. albopictus (24-h LC50 10.5 and 5.8 μg/mL, respectively) and Ae. aegypti (24-h LC50 10.6 and 12.5 μg/mL, respectively). The essential oil of E. valerianifolius also showed good activity against Cx. quinquefasciatus larvae (24-h LC50 = 40.7 μg/mL). Thus, Erechtites essential oils may serve as low-cost vector control agents for mosquito-borne infections.
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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 50000, Vietnam.
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 102, Lehi, UT 84043, USA.
| | - Ho Viet Hieu
- Parasitology and Entomology Unit, Department of Medicine, Duy Tan University, 03 Quang Trung, Da Nang 50000, Vietnam.
| | - Nguyen Thi Hong Chuong
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University,03 Quang Trung, Da Nang 50000, Vietnam.
| | - Do Ngoc Dai
- Faculty of Agriculture, Forestry and Fishery, Nghe An Economics University, Vinh City 43000, Nghe An Province, Vietnam.
| | - Le Thi Huong
- School of Natural Science Education, Vinh University, 182 Le Duan, Vinh City 43000, Nghệ An Province, Vietnam.
| | - Thieu Anh Tai
- Department of Pharmacy, Duy Tan University, 03⁻Quang Trung, Da Nang 50000, 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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Zheng DP, Dai DN, Mi L, Tian JN. [Cyclopexy on cyclodialysis cleft guided by anterior segment optic coherence tomography]. Zhonghua Yi Xue Za Zhi 2018; 98:3921-3924. [PMID: 30669795 DOI: 10.3760/cma.j.issn.0376-2491.2018.48.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the accuracy of cyclopexy on traumatic cyclodialysis cleft guided by anterior segment optic coherence tomography (AS-OCT). Methods: Fifty-six eyes of 56 consecutive patients[41 males, 15 females, with a mean age of (43.14±13.85) years]who diagnosed with traumatic cyclodialysis cleft confirmed by ultrasound biomicroscopy (UBM) and underwent cyclopexy surgery at Shanxi Eye Hosiptal from July 2013 to February 2016 were included in the study. Patients were measured with the AS-OCT system before cyclopexy. AS-OCT findings of the cyclodialysis clefts were recorded. Localizing and suturing the clefts was guided by AS-OCT imaging. Preoperative and postoperative visual acuity (VA), intraocular pressure (IOP) and anterior chamber depth (ACD) were recorded and analyzed. Results: Imaging of preoperative AS-OCT of the 56 eyes showed an annular ciliary body detachment, a cyclodialysis cleft and shallow anterior chamber. The ciliary body detachment detected by AS-OCT showed an echo free zone between the annular ciliary body and the sclera. The cyclodialysis cleft showed a new pathway between the anterior chamber and the suprachoroidal space. AS-OCT imaging showed that the extent of cyclodialysis clefts ranged from 30 degrees to 240 degrees, which had a 0 degree to 20 degrees difference compared with UBM imaging. Localizing and suturing of the cyclodialysis clefts was guided by AS-OCT imaging. The best corrected visual acuity (BCVA) was 0.21±0.17 at baseline and 0.29±0.21 at five days postoperatively. The initial and final BCVA showed a remarkable difference after treatment (t=-4.98, P<0.01). The mean intra-ocular pressure (IOP) was (8.33±2.29) mmHg before surgery and (15.40±2.34) mmHg at five days postoperatively. There was a significant difference of IOP between preoperative and postoperative period (t=-16.590, P<0.01). The mean ACD was (1.94±0.45) mm preoperatively and (2.69±0.44) mm at five days postoperatively. There was also a significant difference of ACD between preoperative and postoperative period (t=-10.276, P<0.01). The postoperative reexamination found that ciliary body detachment or cyclodialysis clefts was not observed in the 56 eyes by AS-OCT. Conclusions: As a non-invasive method, AS-OCT is accurate, correlating well with UBM in the examination of cyclodialysis cleft, and can localize the extent of clefts before cyclopexy.
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Affiliation(s)
- D P Zheng
- Department of Fundus Diseases, Shanxi Eye Hospital, Taiyuan 030001, China
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Chan HH, Hwang TL, Thang TD, Leu YL, Kuo PC, Nguyet BTM, Dai DN, Wu TS. Isolation and synthesis of melodamide A, a new anti-inflammatory phenolic amide from the leaves of Melodorum fruticosum. Planta Med 2013; 79:288-294. [PMID: 23345166 DOI: 10.1055/s-0032-1328131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Together with twelve known compounds (2-13), melodamide A (1), a new phenolic amide possessing p-quinol moiety, was purified and characterized from the methanolic extracts of the leaves of Melodorum fruticosum. The structure of melodamide A (1) was established with a combination of 2D NMR experiments, HR-ESI-MS and X-ray analyses. The other known compounds were identified by comparison of their spectroscopic and physical data with those reported in the literature. Moreover, some isolated compounds were examined for their inhibitory activity towards superoxide anion generation and elastase release in human neutrophils. Among the tested compounds, 1, 3, and 5 exhibited strong inhibition of superoxide anion generation with IC50 values ranging from 5.25 to 8.65 µM. Furthermore, synthesis and biological evaluation of melodamide A (1) and its analogs (14a-p) were described.
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Affiliation(s)
- Hsiu-Hui Chan
- Department of Pharmacy, China Medical University, Taichung, Taiwan
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Thang TD, Dai DN, Hoi TM, Ogunwande IA. Study on the volatile oil contents of Annona glabra L., Annona squamosa L., Annona muricata L. and Annona reticulata L., from Vietnam. Nat Prod Res 2012; 27:1232-6. [PMID: 22989376 DOI: 10.1080/14786419.2012.724413] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The volatile compounds identified from four species of Annona from Vietnam are being reported. The oils were obtained from aliquots of plant samples by steam distillation and subjected to GC and GC-MS analysis. The main compounds of Annona glabra L., were β-caryophyllene (21.5%) germacrene D (17.7%), α-cadinol (5.4%) and β-elemene (5.2%). Annona squamosa L., comprised mainly of α-pinene (1.0-11.9%), limonene (0.8-11.7%), β-cubebene (0.5-13.0%), β-caryophyllene (11.6-24.5%), spathulenol (0.8-9.0%), caryophyllene oxide (1.0-10.6%) and α-cadinol (3.3-7.8%). The significant constituents of Annona muricata L., were α-pinene (9.4%), β-pinene (20.6%), ρ-mentha-2,4(8)-diene (9.8%), β-elemene (9.1%) and germacrene D (18.1%). However, camphene (0.2-6.6%), α-copaene (2.0-7.3%), β-elemene (5.9-16.6%), β-caryophyllene (8.3-14.9%), β-bisabolene (0.4-10.2%), δ-cadinene (1.7-4.8%) and germacrene D (9.3-22.8%) were the main compounds common to samples of Annona reticulata L. There were significant amounts of sabinene (11.2% and 2.7%; leaf and stem bark) and bicycloelemene (9.6% and 6.1%; stem and bark).
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Affiliation(s)
- T D Thang
- Department of Food Technology, Faculty of Chemistry, Vinh University, 182-Le Duan, Vinh City, Nghe An Province, Vietnam.
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Dai DN, Hoi TM, Thang TD, Ogunwande IA. The leaf essential oils of five Vietnamese Desmos species (Annonaceae). Nat Prod Commun 2012; 7:231-234. [PMID: 22474966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The leaf essential oils of five Desmos species from Vietnam have been extracted by steam distillation and subjected to GC and GC-MS analyses. The plant samples were Desmos cochinchinensis Lour., D. penduculosus (A. DC.) Ban, D. penducolosus var. tonkinensis Ban, D. chinensis Lour., and D. dumosus (Roxb.) Saff. The oils were rich in sesquiterpene hydrocarbons (65.9%-88.9%) and monoterpene hydrocarbons (6.3%-30.9%). The oxygenated counterparts were less common. The quantitatively significant constituents of the oils were alpha-pinene (2.4%-12.1%), beta-elemene (2.2-39.5%), beta-caryophyllene (13.9-26.3%), germacrene D (9.9-15.5%), bicyclogermacrene (2.0-11.4%) and alpha-humulene (3.8-7.5%). The studied oils could be classified into two chemical forms: oils with abundance of beta-caryophyllene, germacrene D and alpha-pinene (D. cochinchinensis, D. penducolosus var. tonkinensis, D. chinensis and D. Dumosus) and oil with high amounts of beta-elemene, beta-caryophyllene and germacrene D (D. penduculosus).
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Affiliation(s)
- Do Ngoc Dai
- Institute Ecology and Biological Resources, Viet Nam Academy of Science and Technology, Vietnam
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Abstract
The leaf essential oils of five Desmos species from Vietnam have been extracted by steam distillation and subjected to GC and GC-MS analyses. The plant samples were Desmos cochinchinensis Lour., D. penduculosus (A. DC.) Ban, D. penducolosus var. tonkinensis Ban, D. chinensis Lour., and D. dumosus (Roxb.) Saff. The oils were rich in sesquiterpene hydrocarbons (65.9%-88.9%) and monoterpene hydrocarbons (6.3%-30.9%). The oxygenated counterparts were less common. The quantitatively significant constituents of the oils were α-pinene (2.4%-12.1%), β-elemene (2.2-39.5%), β-caryophyllene (13.9-26.3%), germacrene D (9.9-15.5%), bicyclogermacrene (2.0-11.4%) and α-humulene (3.8-7.5%). The studied oils could be classified into two chemical forms: oils with abundance of β-caryophyllene, germacrene D and α-pinene ( D. cochinchinensis, D. penducolosus var. tonkinensis, D. chinensis and D. Dumosus) and oil with high amounts of β-elemene, β-caryophyllene and germacrene D ( D. penduculosus).
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Affiliation(s)
- Do Ngoc Dai
- Institute Ecology and Biological Resources, Viet Nam Academy of Science and Technology, Vietnam
- Faculty of Biology, Vinh University, 182-Le Duan Vihn, Vietnam
| | - Tran Minh Hoi
- Faculty of Biology, Vinh University, 182-Le Duan Vihn, Vietnam
| | - Tran Dinh Thang
- Faculty of Chemistry, Vihn University, 182-Le Duan vihn, Vietnam
| | - Isiaka A. Ogunwande
- Department of Chemistry, Faculty of Science, Lagos State University, Badagry Expressway Ojo, P.M.B. 0001, Lasu Post Office, Ojo, Lagos, Nigeria
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Irollo B, Vu BD, Dai DN, Yonger J. Dissociation and association rate constants changes following bilirubin binding affinity decreases. Dev Pharmacol Ther 1987; 10:436-42. [PMID: 3677971 DOI: 10.1159/000457775] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The effect of sulfisoxazole, sodium salicylate, sodium cholate, urea and dimethyl sulfoxide on the kinetics of the bilirubin to human serum albumin at 24 degrees C and pH 7.40 was investigated. A marked decrease of the association constant was obtained. It was due mainly to that of the association rate constant, and might be an additional risk factor to the icteric newborn: when blood bilirubin increases, unbound bilirubin which cannot rapidly associate to albumin may reach a dangerous level, even when its equilibrium concentration is low.
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Affiliation(s)
- B Irollo
- Laboratoire de Chimie Analytique, Faculté de Pharmacie, Université René-Descartes, Paris, France
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