scholarly journals Use of Medicinal Plants as Antimicrobial Agents: A Review of the Successes Story

2020 ◽  
Vol 6 (3) ◽  
Keyword(s):  
Medicinal Plants ◽  
Antimicrobial Agents

Biochemical Composition, Antimicrobial and Antifungal Activities Assessment of the Fermented Medicinal Plants Extract Using Lactic Acid Bacteria

2021 ◽  
Author(s):  
Hamza Gadhoumi ◽  
Akrem Hayouni EL ◽  
Enriqueta Martinez-Rojas ◽  
Walid Yeddes ◽  
Moufida Saidani Tounsi
Keyword(s):  
Medicinal Plants ◽  
Phytophthora Infestans ◽  
Volatile Compounds ◽  
Biochemical Composition ◽  
Pathogenic Bacteria ◽  
Antimicrobial Agents ◽  
Food Preservation ◽  
Antifungal Activities ◽  
Antimicrobial And Antifungal Activities ◽  
Plants Extract

Abstract To prevent foodborne diseases and extend shelf-life, antimicrobial agents may be used in food to inhibit the growth of undesired microorganisms. The present study was aimed to determine the antimicrobial and antifungal activities of the fermented medicinal plants extract using Lactobacillus acidophilus ATCC 4356. The fermentation kinetic parameters, biochemical composition and the volatile compounds of the fermented plant extract was assessed. The results showed that, the fermented plants beverage exhibited high content in polyphenols, flavonoids, and tannins (152.7 mg AGE/ L; 93.6 mg RE/ L; and 62.1mg CE/ L, respectively) to compare with the extract without fermentation. The GC-MS headspace analyses showed the presence of twenty-four interesting volatile compounds. The richness of the fermented plants extracts of polyphenols content and the bioactive compound such as Eucalyptol, Camphene, α-Phellandrene, α-Terpinene improve their biological activity. In addition, the fermented plants extract exhibited a high antimicrobial potential against resistance pathogenic bacteria and fungi determined by different methods. The maximum inhibition showed in the fermented plants beverage against Escherichia coli 25922/3, Pseudomonas aeruginosa 27853 ATCC, Staphylococcus aureus 29213 ATCC, Enterococcus aerogenes 13048 ATCC, Phytophthora infestans P3 4/91 R+, Phytophthora infestans P4 20/01 R, Phytophthora infestans (GL-1). The obtained results support the hypothesis of using whey as a functional ingredient to improve food preservation. The bioprocesses of fermentation technology enhance antimicrobial and antifungal activities which could be used in different industrial applications.

scholarly journals Investigating In Vitro Antibacterial Activities of Medicinal Plants Having Folkloric Repute in Ethiopian Traditional Medicine

2019 ◽  
Vol 24 ◽  
pp. 2515690X1988627 ◽  
Author(s):  
Mekonnen Sisay ◽  
Negussie Bussa ◽  
Tigist Gashaw ◽  
Getnet Mengistu
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plants ◽  
Antimicrobial Agents ◽  
Bacterial Isolates ◽  
Zone Of Inhibition ◽  
Traditional Use ◽  
Gram Negative ◽  
E Coli ◽  
Slow Development

Medicinal plants are targeted in the search for new antimicrobial agents. Nowadays, there is an alarmingly increasing antimicrobial resistance to available agents with a very slow development of new antimicrobials. It is, therefore, necessary to extensively search for new agents based on the traditional use of herbal medicines as potential source. The antibacterial activity of 80% methanol extracts of the leaves of Verbena officinalis (Vo-80ME), Myrtus communis (Mc-80ME), and Melilotus elegans (Me-80ME) was tested against 6 bacterial isolates using agar well diffusion technique. In each extract, 3 concentrations of 10, 20, and 40 mg/well were tested for each bacterium. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were also determined. Vo-80ME and Mc-80ME exhibited promising antibacterial activity against Staphylococcus aureus with the highest zone of inhibition being 18.67 and 26.16 mm, respectively at concentration of 40 mg/well. Regarding gram-negative bacteria, Vo-80ME exhibited an appreciable activity against Escherichia coli and Salmonella typhi. Mc-80ME displayed remarkable activity against all isolates including Pseudomonas aeruginosa with the maximum zone of inhibition being 22.83 mm. Me-80ME exhibited better antibacterial activity against E coli, but its secondary metabolites had little or no activity against other gram-negative isolates. The MIC values of Vo-80ME ranged from 0.16 to 4.00 mg/mL. The lowest MIC was observed in Mc-80ME, with the value being 0.032 mg/mL. Mc-80ME had bactericidal activity against all tested bacterial isolates. Mc-80ME showed remarkable zone of inhibitions in all tested bacterial isolates. Besides, Vo-80ME showed good antibacterial activity against S aureus, E coli, and S typhi. Conversely, Me-80ME has shown good activity against E coli only. Generally, M communis L and V officinalis have good MIC and MBC results.

scholarly journals Antimicrobial and anti-Quorum Sensing activities of selected medicinal plants of Ethiopia: Implication for development of potent antimicrobial agents

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Ketema Bacha ◽  
Yinebeb Tariku ◽  
Fisseha Gebreyesus ◽  
Shibru Zerihun ◽  
Ali Mohammed ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Medicinal Plants ◽  
Antimicrobial Agents

scholarly journals Antimicrobial and modulation effects of selected Ghanaian medicinal plants

2017 ◽  
Vol 36 (3) ◽  
pp. 1-7
Author(s):  
E. Ekuadzi ◽  
R. A. Dickson ◽  
T. C. Fleischer ◽  
S. O. Dapaah ◽  
E. O. Reynolds ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Plant Extracts ◽  
Antimicrobial Agents ◽  
Multidrug Resistant ◽  
Broth Microdilution ◽  
Microdilution Method ◽  
Broth Microdilution Method ◽  
Checkerboard Assay ◽  
Ethanol Extracts ◽  
Antibiotic Discovery

The alarming rise in the incidences of multidrug-resistant microorganisms and the decline innew antibiotic discovery make the search for new antimicrobial agents or efforts at restoring the activity of older antibiotics to which the microbes have developed resistance very necessary. The aim of the present study is to investigate the antimicrobial and modulation effects of the 70% ethanol extracts of Lannea schimperi, Commelina nudiflora and Piliostigma reticulatum against usceptible strains of microorganisms. Using the broth microdilution method, the minimum inhibitory concentrations (MICs) of the extracts were determined. The checkerboard assay was used to determine the modulation effects when sub-inhibitory concentrations of plant extracts were combined with the standard antibiotics. All three plants extracts possessed weak antimicrobial effects. For the modulation experiments, fifteen of the twenty-seven combinatorial casesyielded biologically significant effects. The ethanol extracts of the three plants studied here are good modulators as they reduced the MIC of ciprofloxacin and ketoconazole by factors that are comparable to that of reserpine. However the exact compounds and their exact mechanism of modulation require further investigation.Keywords: Anti-infective, modulation, Lannea schimperi, Commelina nudiflora, Piliostigmareticulatum, ethnomedicine

scholarly journals Antimicrobial activity of some Iranian medicinal plants

2010 ◽  
Vol 62 (3) ◽  
pp. 633-641 ◽  
Author(s):  
Pirbalouti Ghasemi ◽  
Parvin Jahanbazi ◽  
Shekoofeh Enteshari ◽  
Fatemeh Malekpoor ◽  
Behzad Hamedi
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plants ◽  
Essential Oil ◽  
Antimicrobial Agents ◽  
Antimicrobial Activities ◽  
Food Preservation ◽  
Arnebia Euchroma ◽  
Agar Disc ◽  
Satureja Bachtiarica ◽  
Bacteria And Fungi

The major aim of this study was to determine the antimicrobial activity of the extracts of eight plant species which are endemic in Iran. The antimicrobial activities of the extracts of eight Iranian traditional plants, including Hypericum scabrum, Myrtus communis, Pistachia atlantica, Arnebia euchroma, Salvia hydrangea, Satureja bachtiarica, Thymus daenensis and Kelussia odoratissima, were investigated against Escherichia coli O157:H7, Bacillus cereus, Listeria monocytogenes and Candida albicans by agar disc diffusion and serial dilution assays. Most of the extracts showed a relatively high antimicrobial activity against all the tested bacteria and fungi. Of the plants studied, the most active extracts were those obtained from the essential oils of M. communis and T. daenensis. The MIC values for active extract and essential oil ranged between 0.039 and 10 mg/ml. It can be said that the extract and essential oil of some medicinal plants could be used as natural antimicrobial agents in food preservation. .

scholarly journals Evaluation of antimicrobial activity of three important medicinal plants of South India

2019 ◽  
Vol 8 (1) ◽  
pp. 3484
Author(s):  
Gopalakrishnaiah B. ◽  
Aniel Kumar O.
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plants ◽  
Pathogenic Bacteria ◽  
Antimicrobial Agents ◽  
Antimicrobial Properties ◽  
Development Program ◽  
Antimicrobial Effect ◽  
Trichophyton Mentagrophytes ◽  
Crude Extracts ◽  
The World

India is found to be a country with rich biodiversity and enormous treasure of herbal plants and consequently called as medicinal garden of the world. Plants are the richest source of natural antimicrobial agents. In recent years drug resistance to human pathogenic bacteria has been commonly reported from all over the world. Therefore, there is a need to develop alternative antimicrobial drugs for the treatment of infectious diseases; one approach is to screen local medicinal plants for possible antimicrobial properties. The present study was designed to evaluate the antimicrobial efficacy of hexane, chloroform and methanol crude extracts of the leaves of three important medicinal plants viz., Biophytum sensitivum (L.) DC, Bougainvillea spectabilis L. and Caesalpinia bonducella (L.) Fleming, collected from in and around Visakhapatnam District. The antimicrobial activity of the crude extracts was tested against three Gram Positive bacteria (Bacillus subtilis MTCC 441, Enterococcus faecalis MTCC 439, Staphylococcus aureus MTCC 737), Three Gram Negative bacteria (Escherichia coli MTCC 443, Proteus vulgaris MTCC 426 and Pseudomonas aeruginosa MTCC 1688) and three Fungal strains (Candida albicans MTCC 227, Epidermophyton floccosum MTCC 613 and Trichophyton mentagrophytes MTCC 7687) using agar well diffusion assay. Our results demonstrated that methanol extracts of these plants leaves have concentration dependent antibacterial activity against some of the tested organisms. Further studies should be undertaken to elucidate the exact mechanism of action of antimicrobial effect to identify the active ingredients which can be used for drug development program.

Review on few South Indian medicinal plants as antimicrobial agents

2016 ◽  
Vol 5 (03) ◽  
pp. 4915
Author(s):  
Phani Kumari Uddandapu* ◽  
Venkateswar Rao, Y. ◽  
Chandrasekhara Naidu K.
Keyword(s):  
Medicinal Plants ◽  
Infectious Diseases ◽  
Human Health ◽  
Antimicrobial Agents ◽  
Well Being ◽  
New Drugs ◽  
South Indian ◽  
Medicinal Properties ◽  
Health And Well Being ◽  
Indian Medicinal Plants

The Plant kingdom is a storehouse of potential drugs. Plant derived medicines have made large contributions to human health and well-being. They play dual role in the development of new drugs. At first they act as a natural blueprint for the development of new drugs and secondly they can be used for the treatment of infectious diseases. Many evidences gathered from earlier studies which confirmed that the presence of variety of phytochemicals in plants contribute medicinal properties. In this present review, an attempt has been made to give an overview of few south Indian medicinal plants and their phytochemicals which are useful in the treatment of several infectious diseases.

Virtual Screening of Antimicrobial Agents from Medicinal Plants

2021 ◽  
Vol 47 (4) ◽  
pp. 939-944
Author(s):  
Yongzhong Lu ◽  
Junkui Zhao ◽  
Linyue Cheng
Keyword(s):  
Virtual Screening ◽  
Medicinal Plants ◽  
Antimicrobial Agents

scholarly journals EFFECT OF ANTI-BIOFILM POTENTIAL OF DIFFERENT MEDICINAL PLANTS: REVIEW

2017 ◽  
Vol 10 (2) ◽  
pp. 24 ◽  
Author(s):  
M Gayathri ◽  
Abinaya Man
Keyword(s):  
Medicinal Plants ◽  
Biofilm Formation ◽  
Antimicrobial Agents ◽  
Low Grade ◽  
Natural Environments ◽  
Tissue Formation ◽  
Granulation Tissue Formation ◽  
Aerial Parts ◽  
Severe Infections ◽  
Phytochemical Compounds

Medicinal plant products are the natural products which have been very useful for human to cure various ailments and as an alternative medicine for conventional therapy. However, bacteria in natural environments are mainly exist in biofilm formation and are more susceptible to cause severe infections than the planktonic counterparts. Biofilm is associated with impaired epithelization and granulation tissue formation and also promotes a low-grade inflammatory response that interferes with wound healing. Since the infection caused by biofilm is often very difficult to treat, there is a need to find a new active anti-biofilm agent. In recent past, interest in the therapeutic and nutritional properties of various medicinal plants and its natural phytochemical compounds which have established for their anti-biofilm activities has been increased gradually. In this review, we have described various aerial parts of medicinal plants which have anti-biofilm effect which was evaluated against biofilm producing different bacterial pathogens and antimicrobial agents which are responsible to cure wound healing.Keywords: Medicinal plants, Phytochemical, Anti-biofilm activity.

scholarly journals Ethnobotanical Study of Plants Used in the Management of HIV/AIDS-Related Diseases in Livingstone, Southern Province, Zambia

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Kazhila C. Chinsembu
Keyword(s):  
Medicinal Plants ◽  
Antimicrobial Agents ◽  
Ethnobotanical Study ◽  
Asparagus Racemosus ◽  
Dichrostachys Cinerea ◽  
Oral Infections ◽  
Sexually Transmitted ◽  
Active Chemical ◽  
Piliostigma Thonningii ◽  
Hiv Aids

Faced with critical shortages of staff, long queues, and stigma at public health facilities in Livingstone, Zambia, persons who suffer from HIV/AIDS-related diseases use medicinal plants to manage skin infections, diarrhoea, sexually transmitted infections, tuberculosis, cough, malaria, and oral infections. In all, 94 medicinal plant species were used to manage HIV/AIDS-related diseases. Most remedies are prepared from plants of various families such as Combretaceae, Euphorbiaceae, Fabaceae, and Lamiaceae. More than two-thirds of the plants (mostly leaves and roots) are utilized to treat two or more diseases related to HIV infection. Eighteen plants, namely,Achyranthes asperaL.,Lannea discolor(Sond.) Engl.,Hyphaene petersianaKlotzsch ex Mart.,Asparagus racemosusWilld.,Capparis tomentosaLam.,Cleome hirtaOliv.,Garcinia livingstoneiT. Anderson,Euclea divinorumHiern,Bridelia catharticaG. Bertol.,Acacia niloticaDelile,Piliostigma thonningii(Schumach.) Milne-Redh.,Dichrostachys cinerea(L.) Wight and Arn.,Abrus precatoriusL.,Hoslundia oppositaVahl.,Clerodendrum capitatum(Willd.) Schumach.,Ficus sycomorusL.,Ximenia americanaL., andZiziphus mucronataWilld., were used to treat four or more disease conditions. About 31% of the plants in this study were administered as monotherapies. Multiuse medicinal plants may contain broad-spectrum antimicrobial agents. However, since widely used plants easily succumb to the threats of overharvesting, they need special protocols and guidelines for their genetic conservation. There is still need to confirm the antimicrobial efficacies, pharmacological parameters, cytotoxicity, and active chemical ingredients of the discovered plants.

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