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Choudhary P, Bhanjana G, Kumar S, Dilbaghi N. Development and evaluation of eco-friendly carvacrol nanoemulsion as a sustainable biopesticide against bacterial leaf blight of cluster bean. PEST MANAGEMENT SCIENCE 2024; 80:452-462. [PMID: 37721471 DOI: 10.1002/ps.7776] [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: 06/19/2023] [Revised: 08/09/2023] [Accepted: 09/18/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND The study of carvacrol plant antibacterial components has recently become a hot topic in modern farming. Carvacrol industrial applications are restricted by their physicochemical instability and partial solubility in water. In the present study, an ultrasonic emulsification method was used to prepare a carvacrol nanoemulsion (CAR-NE) employing nonionic surfactants. The CAR-NE was characterized using a dynamic light scattering (DLS) instrument and transmission electron microscopy (TEM). The goal of this work was nanoencapsulation of carvacrol to improve its aqueous solubility and preservation of the encapsulated compound against climatic conditions. Another aim of the present study was the evaluation of the growth-promoting effects and antibacterial potential of CAR-NE against bacterial leaf blight of cluster bean. RESULTS CAR-NE showed a hydrodynamic diameter, ZP and PDI index of 43.88 ± 4.30 nm, -47.8 ± 0.23 mV and 0.246 ± 0.04, respectively. The spherical shape morphology of CAR-NE was confirmed by TEM imaging. Minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) of the CAR-NE were 20 and 160 μL mL-1 (respectively) against Xanthomonas axonopodis pv. cyamopsidis. Additionally, the antibacterial potential of CAR-NE was evaluated for controlling bacterial blight of cluster bean in fields. The disease severity in the negative control plants (water) was 84%, but that in the CAR-NE 160 (μL mL-1 ) was remarkably low at 14%, nearly the same as the positive control (streptomycin sulfate). CONCLUSION The shelf-life of CAR-NE was 2 months at room temperature without any appreciable changes in hydrodynamic diameter and zeta potential. Consequently, plants treated with CAR-NE 160 showed substantial improvement in plant growth. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Pooja Choudhary
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Gaurav Bhanjana
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, India
| | - Sandeep Kumar
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, India
- Physics Department, Punjab Engineering College (Deemed to be University), Chandigarh, India
| | - Neeraj Dilbaghi
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar, India
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Hikal WM, Baz MM, Alshehri MA, Bahattab O, Baeshen RS, Selim AM, Alhwity L, Bousbih R, Alshourbaji MS, Ahl HAHSA. Sustainable Pest Management Using Novel Nanoemulsions of Honeysuckle and Patchouli Essential Oils against the West Nile Virus Vector, Culex pipiens, under Laboratory and Field Conditions. PLANTS (BASEL, SWITZERLAND) 2023; 12:3682. [PMID: 37960039 PMCID: PMC10650709 DOI: 10.3390/plants12213682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
Essential oils are natural plant products that are very interesting, as they are important sources of biologically active compounds. They comprise eco-friendly alternatives to mosquito vector management, particularly essential oil nanoemulsion. Therefore, the aim of this study is to evaluate the effectiveness of 16 selected essential oils (1500 ppm) in controlling mosquitoes by investigating their larvicidal effects against the larvae and adults of the West Nile virus vector Culex pipiens L. (Diptera: Culicidae); the best oils were turned into nanoemulsions and evaluated under laboratory and field conditions. The results show that honeysuckle (Lonicera caprifolium) and patchouli (Pogostemon cablin) essential oils were more effective in killing larvae than the other oils (100% mortality) at 24 h post-treatment. The nanoemulsions of honeysuckle (LC50 = 88.30 ppm) and patchouli (LC50 = 93.05 ppm) showed significantly higher larvicidal activity compared with bulk honeysuckle (LC50 = 247.72 ppm) and patchouli (LC50 = 276.29 ppm) oils. L. caprifolium and P. cablin (100% mortality), followed by Narcissus tazetta (97.78%), Rosmarinus officinalis (95.56%), and Lavandula angustifolia (95.55%), were highly effective oils in killing female mosquitoes, and their relative efficacy at LT50 was 5.5, 5.3, 5.8, 4.1, and 3.2 times greater, respectively, than Aloe vera. The results of the field study show that the honeysuckle and patchouli oils and their nanoemulsions reduced densities to 89.4, 86.5, 98.6, and 97.0% at 24 h post-treatment, respectively, with persistence for eight days post-treatment in pools. Nano-honeysuckle (100% mortality) was more effective than honeysuckle oils (98.0%). Our results show that honeysuckle and patchouli oils exhibited promising larvicidal and adulticidal activity of C. pipiens.
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Affiliation(s)
- Wafaa M. Hikal
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
- Parasitology Laboratory, Water Pollution Research Department, Environment and Climate Change Institute, National Research Centre (NRC), 33 El-Behouth St., Dokki, Giza 12622, Egypt
| | - Mohamed M. Baz
- Department of Entomology, Faculty of Science, Benha University, Benha 13518, Egypt;
| | - Mohammed Ali Alshehri
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
| | - Omar Bahattab
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
| | - Rowida S. Baeshen
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
| | - Abdelfattah M. Selim
- Department of Animal Medicine (Infectious Diseases), College of Veterinary Medicine, Benha University, Toukh 13736, Egypt;
| | - Latifah Alhwity
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
| | - Rabaa Bousbih
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi Arabia;
| | - Maha Suleiman Alshourbaji
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; (M.A.A.); (O.B.); (R.S.B.); (L.A.); (M.S.A.)
| | - Hussein A. H. Said-Al Ahl
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre (NRC), 33 El-Behouth St., Dokki, Giza 12622, Egypt;
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Patel HK, Gomes EN, Wu Q, Patel N, Kobayashi DY, Wang C, Simon JE. Volatile metabolites from new cultivars of catnip and oregano as potential antibacterial and insect repellent agents. FRONTIERS IN PLANT SCIENCE 2023; 14:1124305. [PMID: 36909430 PMCID: PMC9995836 DOI: 10.3389/fpls.2023.1124305] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Plant based natural products have been widely used as antibacterial and insect repellent agents globally. Because of growing resistance in bacterial plant pathogens and urban pests to current methods of control, combined with the long- and short-term negative impact of certain chemical controls in humans, non-target organisms, and the environment, finding alternative methods is necessary to prevent and/or mitigate losses caused by these pathogens and pests. The antibacterial and insect repellent activities of essential oils of novel cultivars of catnip (Nepeta cataria L. cv. CR9) and oregano (Origanum vulgare L. cv. Pierre) rich in the terpenes nepetalactone and carvacrol, respectively, were evaluated using the agar well diffusion assay and petri dish repellency assay. The essential oils exhibit moderate to high antibacterial activity against three plant pathogens, Pseudomonas cichorii, Pseudomonas syringae and Xanthomonas perforans of economic interest and the individual essential oils, their mixtures and carvacrol possess strong insect repellent activity against the common bed bug (Cimex lectularius L.), an urban pest of major significance to public health. In this study, the essential oils of catnip and oregano were determined to be promising candidates for further evaluation and development as antibacterial agents and plant-based insect repellents with applications in agriculture and urban pest management.
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Affiliation(s)
- Harna K. Patel
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
| | - Erik Nunes Gomes
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Federal Agency for Support and Evaluation of Graduate Education (CAPES), Ministry of Education of Brazil, Brasilia, DF, Brazil
| | - Qingli Wu
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, Piscataway, NJ, United States
| | - Nrupali Patel
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
| | - Donald Y. Kobayashi
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
| | - Changlu Wang
- Department of Entomology, Rutgers University, New Brunswick, NJ, United States
| | - James E. Simon
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, Piscataway, NJ, United States
- Center for Agricultural Food Ecosystems, Institute of Food, Nutrition & Health, Rutgers University, New Brunswick, NJ, United States
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Wu W, Yang Y, Feng Y, Ren X, Li Y, Li W, Huang J, Kong L, Chen X, Lin Z, Hou X, Zhang L, Chen Y, Sheng Z, Hong W. Study of the Repellent Activity of 60 Essential Oils and Their Main Constituents against Aedes albopictus, and Nano-Formulation Development. INSECTS 2022; 13:1077. [PMID: 36554987 PMCID: PMC9782114 DOI: 10.3390/insects13121077] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/12/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Mosquitoes are one of the most important disease vectors from a medical viewpoint in that they transmit several diseases such as malaria, filariasis, yellow and Dengue fever. Mosquito vector control and personal protection from mosquito bites are currently the most efficient ways to prevent these diseases. Several synthetic repellents such as DEET, ethyl butylacetylaminopropionate (IR3535) and 1-(1-methylpropoxycarbonyl)-2-(2-hydroxyethyl)piperidine) (Picaridin), have been widely used to prevent humans from receiving mosquito bites. However, the use of synthetic repellents has raised several environment and health concerns. Therefore, essential oils (EOs) as natural alternatives receive our attention. In order to discover highly effective mosquito repellents from natural sources, the repellent activity of 60 commercial EOs against Ae. albopictus was screened in this study. Eight EOs including cinnamon, marjoram, lemongrass, bay, chamomile, jasmine, peppermint2, and thyme, showed a suitable repellent rate (>40%) at the tested dose of 10 μg/cm2. Then, their main constituents were analyzed by GC-MS, and the active constituents were identified. The most active compounds including cinnamaldehyde, citral and terpinen-4-ol, exhibited an 82%, 65% and 60% repellent rate, respectively. Moreover, the nanoemulsions of the three active compounds were prepared and characterized. In the arm-in-cage assay, the protection times of the nanoemulsions of cinnamaldehyde and citral were significantly extended compared with their normal solutions. This study provides several lead compounds to develop new mosquito repellents, and it suggests that nanoemulsification is an effective method for improving the duration of the activity of natural repellents.
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Affiliation(s)
- Weifeng Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yu Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yingmiao Feng
- The Third Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Faculty of Southern Medicine, Guangdong Jiangmen Chinese Medicine College, Jiangmen 529000, China
| | - Xiaofei Ren
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yuling Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Wenjiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jietong Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Lingjia Kong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Xiaole Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
- International Healthcare Innovation Institute (Jiangmen), Jiangmen 529020, China
| | - Zhongze Lin
- Faculty of Southern Medicine, Guangdong Jiangmen Chinese Medicine College, Jiangmen 529000, China
| | - Xiaohui Hou
- School of Preclinical Medicine, Zunyi Medical University, Zunyi 563003, China
| | - Longlai Zhang
- MHOME (Guangzhou) Industrial Co., Ltd., Guangzhou 510700, China
| | - Yajie Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Zhaojun Sheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- International Healthcare Innovation Institute (Jiangmen), Jiangmen 529020, China
| | - Weiqian Hong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- International Healthcare Innovation Institute (Jiangmen), Jiangmen 529020, China
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, UK
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Kundu A, Mandal A, Dutta A, Saha S, Raina AP, Kumar R, Ghosh A. Nanoemulsification of Kaempferia galanga essential oil: Characterizations and molecular interactions explaining fungal growth suppression. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Peng L, Zhang XF, Guo DY, Zhai BT, Wang M, Zou JB, Shi YJ. Pickering emulsion technology based on the concept of “the combination of medicine and adjuvant” to enhance the oxidation stability of volatile oils in solid preparations—taking Lingzhu Pulvis as an example. RSC Adv 2022; 12:27453-27462. [PMID: 36276001 PMCID: PMC9513534 DOI: 10.1039/d2ra04433a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/05/2022] [Indexed: 11/21/2022] Open
Abstract
The antioxidant properties of the volatile oil of Acorus calamus in Lingzhu Pulvis may be enhanced by the introduction of Pickering emulsion technology based on the concept of “the combination of medicine and adjuvant”. The characterization of each drinking tablet of Lingzhu Pulvis was conducted to determine the stabilizer. The optimal stabilizer concentration, oil–water ratio and preparation method of the Pickering emulsion were then determined and analyzed using NIR. The contents of malondialdehyde and peroxide in the volatile oils of each group were compared at different AIBA concentrations. The trends of the components were then analyzed by GC-MS. The pearl powder was screened as the stabilizer of the Pickering emulsion; the pearl powder concentration of 0.065 g mL−1 and the oil–water ratio of 9 : 11 were found to be the optimal emulsion formation conditions, and the high-pressure homogenization method was the optimal preparation method. The NIR analysis showed that the volatile oil was wrapped by the pearl powder and no new chemical structure formed in the Pickering emulsion. The Pickering emulsions had lower oxidation levels than the crude oil groups at AIBA concentrations of 5, 10, and 15 mg mL−1. The results of the GC-MS analysis showed that the antioxidant properties of the volatile components were significantly higher in the Pickering emulsion group compared to the crude oil group. Pickering emulsions can be used to enhance the antioxidant properties of volatile components in oil-containing solid formulations based on the concept of “the combination of medicine and adjuvant”. The antioxidant properties of the volatile oil of Acorus calamus in Lingzhu Pulvis may be enhanced by the introduction of Pickering emulsion technology based on the concept of “the combination of medicine and adjuvant”.![]()
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Affiliation(s)
- Lei Peng
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Xiao-Fei Zhang
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Dong-Yan Guo
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Bing-Tao Zhai
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Mei Wang
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Jun-Bo Zou
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
| | - Ya-Jun Shi
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College, Shaanxi University of Chinese Medicine, Xianyang, 712046, China
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