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Abdel-Fatah SS, Mohammad NH, Elshimy R, Mosallam FM. Impeding microbial biofilm formation and Pseudomonas aeruginosa virulence genes using biologically synthesized silver Carthamus nanoparticles. Microb Cell Fact 2024; 23:240. [PMID: 39238019 PMCID: PMC11378559 DOI: 10.1186/s12934-024-02508-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Accepted: 08/09/2024] [Indexed: 09/07/2024] Open
Abstract
Long-term antibiotic treatment results in the increasing resistance of bacteria to antimicrobials drugs, so it is necessary to search for effective alternatives to prevent and treat pathogens that cause diseases. This study is aimed for biological synthesis of silver Carthamus nanoparticles (Ag-Carth-NPs) to combat microbial biofilm formation and Pseudomonas aeruginosa virulence genes. Ag-Carth-NPs are synthesized using Carthamus tenuis aqueous extract as environmentally friendly method has no harmful effect on environment. General factorial design is used to optimize Ag-Carth-NPs synthesis using three variables in three levels are Carthamus extract concentration, silver nitrate concentration and gamma radiation doses. Analysis of response data indicates gamma radiation has a significant effect on Ag-Carth-NPs production. Ag-Carth-NPs have sharp peak at λ max 425 nm, small and spherical particles with size 20.0 ± 1.22 nm, high stability up to 240 day with zeta potential around - 43 ± 0.12 mV, face centered cubic crystalline structure and FT-IR spectroscopy shows peak around 620 cm-1 that corresponding to AgNPs that stabilized by C. tenuis extract functional moiety. The antibacterial activity of Ag-Carth-NPs against pathogenic bacteria and fungi was determined using well diffusion method. The MIC values of Ag-Carth-NPs were (6.25, 6.25, 3.126, 25, 12.5, 12.5, 25 and 12.5 µg/ml), MBC values were (12.5, 12.5, 6.25, 50, 25, 25, 50 and 25 µg/ml) and biofilm inhibition% were (62.12, 68.25, 90.12, 69.51, 70.61, 71.12, 75.51 and 77.71%) against Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis, Candida tropicalis and Candida albicans respectively. Ag-Carth-NPs has bactericidal efficacy and significantly reduced the swarming, swimming motility, pyocyanin and protease production of P. aeruginosa. Furthermore, P. aeruginosa ToxA gene expression was significantly down regulated by 81.5%, while exoU reduced by 78.1%, where lasR gene expression reduction was 68%, while the reduction in exoU was 66% and 60.1% decrease in lasB gene expression after treatment with Ag-Carth-NPs. This activity is attributed to effect of Ag-Carth-NPs on cell membrane integrity, down regulation of virulence gene expression, and induction of general and oxidative stress in P. aeruginosa. Ag-Carth-NPs have no significant cytotoxic effects on normal human cell (Hfb4) but have IC50 at 5.6µg/mL against of HepG-2 cells. Limitations of the study include studies with low risks of silver nanoparticles for in vitro antimicrobial effects and its toxicity.
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Affiliation(s)
- Sobhy S Abdel-Fatah
- Drug Radiation Research Department, Drug Microbiology Lab, Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nasser H Mohammad
- Radiation Microbiology Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Rana Elshimy
- Microbiology and Immunology, Egyptian Drug Authority, Cairo, Egypt
- Microbiology and immunology, Faculty of Pharmacy, AL-Aharm Canadian University (ACU), Giza, Egypt
| | - Farag M Mosallam
- Drug Radiation Research Department, Drug Microbiology Lab, Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo, Egypt.
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Arshad F, Naikoo GA, Hassan IU, Chava SR, El-Tanani M, Aljabali AA, Tambuwala MM. Bioinspired and Green Synthesis of Silver Nanoparticles for Medical Applications: A Green Perspective. Appl Biochem Biotechnol 2024; 196:3636-3669. [PMID: 37668757 PMCID: PMC11166857 DOI: 10.1007/s12010-023-04719-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
Silver nanoparticles (AgNPs) possess unmatched chemical, biological, and physical properties that make them unique compounds as antimicrobial, antifungal, antiviral, and anticancer agents. With the increasing drug resistance, AgNPs serve as promising entities for targeted drug therapy against several bacterial, fungal, and viral components. In addition, AgNPs also serve as successful anticancer agents against several cancers, including breast, prostate, and lung cancers. Several works in recent years have been done towards the development of AgNPs by using plant extracts like flowers, leaves, bark, root, stem, and whole plant parts. The green method of AgNP synthesis thus has several advantages over chemical and physical methods, especially the low cost of synthesis, no toxic byproducts, eco-friendly production pathways, can be easily regenerated, and the bio-reducing potential of plant derived nanoparticles. Furthermore, AgNPs are biocompatible and do not harm normally functioning human or host cells. This review provides an exhaustive overview and potential of green synthesized AgNPs that can be used as antimicrobial, antifungal, antiviral, and anticancer agents. After a brief introduction, we discussed the recent studies on the development of AgNPs from different plant extracts, including leaf parts, seeds, flowers, stems, bark, root, and whole plants. In the following section, we highlighted the different therapeutic actions of AgNPs against various bacteria, fungi, viruses, and cancers, including breast, prostate, and lung cancers. We then highlighted the general mechanism of action of AgNPs. The advantages of the green synthesis method over chemical and physical methods were then discussed in the article. Finally, we concluded the review by providing future perspectives on this promising field in nanotechnology.
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Affiliation(s)
- Fareeha Arshad
- Department of Mathematics and Sciences, College of Arts and Applied Sciences, Dhofar University, Salalah, PC 211, Oman
| | - Gowhar A Naikoo
- Department of Mathematics and Sciences, College of Arts and Applied Sciences, Dhofar University, Salalah, PC 211, Oman.
| | - Israr U Hassan
- College of Engineering, Dhofar University, Salalah, PC 211, Oman
| | | | - Mohamed El-Tanani
- College of Pharmacy, Ras Al Khaimah Medical and Health Sciences University, Ras Al Khaimah, United Arab Emirates
| | - Alaa A Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Yarmouk University, Irbid, 21163, Jordan
| | - Murtaza M Tambuwala
- Lincoln Medical School, University of Lincoln, Brayford Pool Campus, Lincoln, LN6 7TS, UK.
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Abada E, Mashraqi A, Modafer Y, Al Abboud MA, El-Shabasy A. Review green synthesis of silver nanoparticles by using plant extracts and their antimicrobial activity. Saudi J Biol Sci 2024; 31:103877. [PMID: 38148949 PMCID: PMC10749906 DOI: 10.1016/j.sjbs.2023.103877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/03/2023] [Accepted: 11/24/2023] [Indexed: 12/28/2023] Open
Abstract
Interest in the biosynthesis of nanoparticles has increased in the last era by researchers. Nanoparticles have several applications in different fields like optoelectronics, magnetic devices, drug delivery, and sensors. Nanoparticle synthesis by green methods is safe for the environment and should be explored and encouraged popularly since various plants' have the high extent to form these nanoparticles. Worldwide, UV spectroscopy, X-ray diffraction, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Dynamic Light Scattering (DLS), Atomic Force Microscopy (AFM) besides Fourier Transform Infrared Spectroscopy (FTIR) are used in many ways for characterize nanoparticles. The most advantageous use of AgNPs is their great attribution to be used as antimicrobial agents. Finally, concept of AgNPs synthesis is deserved to be the modern technical and medical concern. The current review shows a complete comprehensive and analytical survey of the biosynthesis of AgNPs with a particular focus on their activities as antimicrobials and the possible theories of their effect on the microbial cell and all influenced secondary metabolites.
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Affiliation(s)
- Emad Abada
- Biology Department/ College of Science, Jazan University, Jazan City 82817, Saudi Arabia
| | - Abdullah Mashraqi
- Biology Department/ College of Science, Jazan University, Jazan City 82817, Saudi Arabia
| | - Yosra Modafer
- Biology Department/ College of Science, Jazan University, Jazan City 82817, Saudi Arabia
| | - Mohamed A. Al Abboud
- Biology Department/ College of Science, Jazan University, Jazan City 82817, Saudi Arabia
| | - A. El-Shabasy
- Biology Department/ College of Science, Jazan University, Jazan City 82817, Saudi Arabia
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Madivoli ES, Wanakai SI, Kairigo PK, Odhiambo RS. Encapsulation of AgNPs in a Lignin Isocyanate Film: Characterization and Antimicrobial Properties. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4271. [PMID: 37374454 DOI: 10.3390/ma16124271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023]
Abstract
Lignin isolated from agricultural residues is a promising alternative for petroleum-based polymers as feedstocks in development of antimicrobial materials. A polymer blend based on silver nanoparticles and lignin-toluene diisocyanate film (AgNPs-Lg-TDIs) was generated from organosolv lignin and silver nanoparticles (AgNPs). Lignin was isolated from Parthenium hysterophorus using acidified methanol and used to synthesize lignin capped silver nanoparticles. Lignin-toluene diisocyanate film (Lg-TDI) was prepared by treating lignin (Lg) with toluene diisocyanate (TDI) followed by solvent casting to form films. Functional groups present and thermal properties of the films were evaluated using Fourier-transform infrared spectrophotometry (FT-IR), thermal gravimetry (TGA), and differential scanning calorimetry (DSC). Scanning electron microscopy (SEM), UV-visible spectrophotometry (UV-Vis), and Powder X-ray diffractometry (XRD) were used to assess the morphology, optical properties, and crystallinity of the films. Embedding AgNPs in the Lg-TDI films increased the thermal stability and the residual ash during thermal analysis, and the presence of powder diffraction peaks at 2θ = 20, 38, 44, 55, and 58⁰ in the films correspond to lignin and silver crystal planes (111). SEM micrographs of the films revealed the presence of AgNPs in the TDI matrix with variable sizes of between 50 to 250 nm. The doped films had a UV radiation cut-off at 400 nm as compared to that of undoped films, but they did not exhibit significant antimicrobial activity against selected microorganisms.
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Affiliation(s)
- Edwin S Madivoli
- Chemistry Department, Jomo Kenyatta University of Agriculture and Technology, Nairobi P.O. Box 62000-00200, Kenya
| | - Sammy I Wanakai
- Chemistry Department, Jomo Kenyatta University of Agriculture and Technology, Nairobi P.O. Box 62000-00200, Kenya
| | - Pius K Kairigo
- Department of Biological and Environmental Science, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
| | - Rechab S Odhiambo
- Department of Physical Science, University of Kabianga, Kericho P.O. Box 2030-20200, Kenya
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Jaison JP, Balasubramanian B, Gangwar J, James N, Pappuswamy M, Anand AV, Al-Dhabi NA, Valan Arasu M, Liu WC, Sebastian JK. Green Synthesis of Bioinspired Nanoparticles Mediated from Plant Extracts of Asteraceae Family for Potential Biological Applications. Antibiotics (Basel) 2023; 12:543. [PMID: 36978410 PMCID: PMC10044610 DOI: 10.3390/antibiotics12030543] [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: 01/30/2023] [Revised: 02/28/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023] Open
Abstract
The Asteraceae family is one of the largest families in the plant kingdom with many of them extensively used for significant traditional and medicinal values. Being a rich source of various phytochemicals, they have found numerous applications in various biological fields and have been extensively used for therapeutic purposes. Owing to its potential phytochemicals present and biological activity, these plants have found their way into pharmaceutical industry as well as in various aspects of nanotechnology such as green synthesis of metal oxide nanoparticles. The nanoparticles developed from the plants of Asteraceae family are highly stable, less expensive, non-toxic, and eco-friendly. Synthesized Asteraceae-mediated nanoparticles have extensive applications in antibacterial, antifungal, antioxidant, anticancer, antidiabetic, and photocatalytic degradation activities. This current review provides an opportunity to understand the recent trend to design and develop strategies for advanced nanoparticles through green synthesis. Here, the review discussed about the plant parts, extraction methods, synthesis, solvents utilized, phytochemicals involved optimization conditions, characterization techniques, and toxicity of nanoparticles using species of Asteraceae and their potential applications for human welfare. Constraints and future prospects for green synthesis of nanoparticles from members of the Asteraceae family are summarized.
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Affiliation(s)
| | | | - Jaya Gangwar
- Department of Life Sciences, School of Sciences, Christ University, Bangalore 560029, India
| | - Nilina James
- Department of Life Sciences, School of Sciences, Christ University, Bangalore 560029, India
| | - Manikantan Pappuswamy
- Department of Life Sciences, School of Sciences, Christ University, Bangalore 560029, India
| | - Arumugam Vijaya Anand
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, India
| | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Wen-Chao Liu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
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Kordzangeneh H, Jookar Kashi F. A new Bacillus Paralicheniformis sp. Tmas-01 as bioreactor for synthesis of Ag/AgCl composite–different effects of biological and Rodamin B dye decolorization, anticancer, genotoxic activity. Arch Microbiol 2022; 204:706. [DOI: 10.1007/s00203-022-03317-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/10/2022] [Accepted: 10/29/2022] [Indexed: 11/16/2022]
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Wanakai IS, Kareru GP, Sujee MD, Madivoli SE, Gachui ME, Kairigo KP. Kinetics of Rifampicin Antibiotic Degradation Using Green Synthesized Iron Oxide Nanoparticles. CHEMISTRY AFRICA 2022. [DOI: 10.1007/s42250-022-00543-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Biogenic Synthesis of Gold Nanoparticles from Physalis peruviana and Application in Wound Healing. J CHEM-NY 2022. [DOI: 10.1155/2022/9034840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Wound management is key to healing. Poorly managed wounds lead to abnormal biological reactions and complications. Microorganisms, bacteria or fungi, infect such wounds leading to their chronic nature. Gold nanoparticles (Au NPs) show wound healing properties. In addition, ethnobotanical information from Siaya County in Kenya shows the leaves of Physalis peruviana L. to be effective in wound management. A combination of Au NPs and leave extracts of Physalis peruviana L. through a one pot biogenic synthesis leads to a new effective wound management substance. The synthesis was done at room temperature 25°C and at 85°C. The UV-visible spectroscopy results show efficient sharper plasmon bands with a blue shift indicating a decrease in λ max compared to red shift which show an increase in λ max. The surface plasmon resonance is a sharper at wavelength of about 540 nm. Dynamic light scattering and zeta potential analysis show that the polydispersity index is high and this is attributed to heterogeneity of chemical components of the plants. Transmission electron microscopy results for Au NPs show similarity in their shapes and sizes with grain size boundaries of between 1 nm and 100 nm. The particles are spherically shaped and crystalline with small lattice due to the small grains. The gold nanoparticles synthesized from Physalis peruviana show antimicrobial activities against gram-positive bacteria and, gram-negative bacteria as well as gram-positive fungus. The inhibition zones for Au NPs of different concentrations vary significantly between concentrations (one-way ANOVA at
). The highest antibacterial activity is at 100 mM of Au NPs against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. The inhibition zones for Au NPs at concentration of 100 mM and Physalis peruviana extract vary significantly in all the microbial cells, except for Pseudomonas aeruginosa (one-way ANOVA, F(3,11) = 2.67,
). Application of the Au NPs in wound healing is faster than controls. The Au NPs also have good biocompatibility as signs of infection were not present.
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Sampath G, Chen YY, Rameshkumar N, Krishnan M, Nagarajan K, Shyu DJH. Biologically Synthesized Silver Nanoparticles and Their Diverse Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3126. [PMID: 36144915 PMCID: PMC9500900 DOI: 10.3390/nano12183126] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/22/2022] [Accepted: 09/06/2022] [Indexed: 05/14/2023]
Abstract
Nanotechnology has become the most effective and rapidly developing field in the area of material science, and silver nanoparticles (AgNPs) are of leading interest because of their smaller size, larger surface area, and multiple applications. The use of plant sources as reducing agents in the fabrication of silver nanoparticles is most attractive due to the cheaper and less time-consuming process for synthesis. Furthermore, the tremendous attention of AgNPs in scientific fields is due to their multiple biomedical applications such as antibacterial, anticancer, and anti-inflammatory activities, and they could be used for clean environment applications. In this review, we briefly describe the types of nanoparticle syntheses and various applications of AgNPs, including antibacterial, anticancer, and larvicidal applications and photocatalytic dye degradation. It will be helpful to the extent of a better understanding of the studies of biological synthesis of AgNPs and their multiple uses.
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Affiliation(s)
- Gattu Sampath
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, New Delhi 110016, India
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi City 600355, Taiwan
| | | | | | - Kayalvizhi Nagarajan
- Department of Zoology, School of Life Sciences, Periyar University, Salem 636011, India
| | - Douglas J. H. Shyu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan
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Green synthesis of Gold and Silver Nanoparticles: Updates on Research, Patents, and Future Prospects. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Green synthesis of silver nanoparticles using Diplazium esculentum extract: catalytic reduction of methylene blue and antibacterial activities. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-021-01835-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bioactive Molecules Coated Silver Oxide Nanoparticle Synthesis from Curcuma zanthorrhiza and HR-LCMS Monitored Validation of Its Photocatalytic Potency Towards Malachite Green Degradation. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02099-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Potentials of phytosynthesized silver nanoparticles in biomedical fields: a review. INTERNATIONAL NANO LETTERS 2021. [DOI: 10.1007/s40089-021-00341-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Aiswariya KS, Jose V. Photo-Mediated Facile Synthesis of Silver Nanoparticles Using Curcuma zanthorrhiza Rhizome Extract and Their In Vitro Antimicrobial and Anticancer Activity. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01951-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Vanlalveni C, Lallianrawna S, Biswas A, Selvaraj M, Changmai B, Rokhum SL. Green synthesis of silver nanoparticles using plant extracts and their antimicrobial activities: a review of recent literature. RSC Adv 2021; 11:2804-2837. [PMID: 35424248 PMCID: PMC8694026 DOI: 10.1039/d0ra09941d] [Citation(s) in RCA: 159] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 12/30/2020] [Indexed: 12/27/2022] Open
Abstract
Synthesis of metal nanoparticles using plant extracts is one of the most simple, convenient, economical, and environmentally friendly methods that mitigate the involvement of toxic chemicals. Hence, in recent years, several eco-friendly processes for the rapid synthesis of silver nanoparticles have been reported using aqueous extracts of plant parts such as the leaf, bark, roots, etc. This review summarizes and elaborates the new findings in this research domain of the green synthesis of silver nanoparticles (AgNPs) using different plant extracts and their potential applications as antimicrobial agents covering the literature since 2015. While highlighting the recently used different plants for the synthesis of highly efficient antimicrobial green AgNPs, we aim to provide a systematic in-depth discussion on the possible influence of the phytochemicals and their concentrations in the plants extracts, extraction solvent, and extraction temperature, as well as reaction temperature, pH, reaction time, and concentration of precursor on the size, shape and stability of the produced AgNPs. Exhaustive details of the plausible mechanism of the interaction of AgNPs with the cell wall of microbes, leading to cell death, and high antimicrobial activities have also been elaborated. The shape and size-dependent antimicrobial activities of the biogenic AgNPs and the enhanced antimicrobial activities by synergetic interaction of AgNPs with known commercial antibiotic drugs have also been comprehensively detailed.
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Affiliation(s)
- Chhangte Vanlalveni
- Department of Botany, Mizoram University Tanhril Aizawl Mizoram 796001 India
| | - Samuel Lallianrawna
- Department of Chemistry, Govt. Zirtiri Residential Science College Aizawl 796001 Mizoram India
| | - Ayushi Biswas
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
| | - Bishwajit Changmai
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
| | - Samuel Lalthazuala Rokhum
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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Njeru SN, Muema JM. Antimicrobial activity, phytochemical characterization and gas chromatography-mass spectrometry analysis of Aspilia pluriseta Schweinf. extracts. Heliyon 2020; 6:e05195. [PMID: 33083626 PMCID: PMC7551365 DOI: 10.1016/j.heliyon.2020.e05195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 01/17/2023] Open
Abstract
Aspilia pluriseta is associated with various bioactivities, although with limited scientific justification. In this study, we evaluated the antimicrobial activity, and characterized the phytochemicals of root extracts of A. pluriseta aimed at validating its therapeutic potential. We used BACTEC MGIT™ 960 system to test for antitubercular activity, disc-diffusion together with the microdilution method to evaluate antimicrobial activities and qualitative phytochemical tests together with gas chromatography-mass spectrometry (GC-MS) analysis to determine the phytochemicals that associated with A. pluriseta extracts activity. We show that methanolic crude extract (at 1 g/mL) had high Mycobacterium tuberculosis (MTB) inhibitory activity (0 growth unit) and considerable potency against Escherichia coli (11.7 mm), Staphylococcus aureus (9.0 mm), and Candida albicans (7.7 mm). All the extract fractions exerted remarkable antimycobacterial activities with minimum inhibitory activity of between 6.26 – 25 μg/mL. The highest antimicrobial activity of petroleum ether and dichloromethane fraction was against E. coli at inhibition zone diameters of 8.3 mm, and 8.0 mm, respectively, while ethyl acetate fraction was against S. aureus with an inhibition zone of 8.7 mm. Methanolic fraction exhibited broad-spectrum activity against 87.5% of the tested microbes (inhibition zones 6.3–8.3 mm). Furthermore, we qualitatively detected terpenoids, alkaloids, and phenolics such as flavonoids, and anthraquinones in extract fractions. GC-MS analysis detected an abundance of fatty acid esters, 2-hydroxy-1-(hydroxymethyl) ethyl ester-hexadecanoic acid, and 2,3-dihydroxy propyl ester-octadecanoic acid and four alkanes. Taken together, we show that A. pluriseta extract fractions (especially ethyl acetate and methanolic fractions) have strong selective antitubercular activity, and thus, we scientifically validate the use of A. pluriseta as a potential source for the discovery of novel antitubercular agents.
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Affiliation(s)
- Sospeter N Njeru
- Department of Biochemistry, School of Health Sciences, Kisii University, PO Box 408-40200, Kisii, Kenya
| | - Jackson M Muema
- Department of Biochemistry, Jomo Kenyatta University of Agriculture and Technology (JKUAT), PO Box 62000-00200, Nairobi, Kenya
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