Antibacterial Activity and Phytochemical Screening of Erythrina fusca Lour. Leaf Extract (Fabaceae)

2022 ◽  
Vol 16 (1) ◽  
pp. 60
Author(s):  
Adiez Sapura Azmi ◽  
Mohammad Humayoon Amini ◽  
Muhammad Farhan Syakir Nor Azman ◽  
Fatimah Salim ◽  
Ali Jawad
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Infections ◽  
Leaf Extract ◽  
Antibacterial Properties ◽  
Positive Control ◽  
Diffusion Method ◽  
Klebsiella Pneumonia ◽  
Phytochemical Screening ◽  
Antibacterial Screening

Erythrina fusca Lour. (family Fabaceae) is a flowering tree that is locally known as ‘chengkering’. The plant is traditionally used in treatment of some symptoms related to bacterial infections such as wound infections, inflammations, and skin itching. This work reports for the first time in vitro antibacterial screening of the E. fusca Lour. methanolic leaf extract against some common Gram-negative and Gram-positive bacteria such as Klebsiella pneumonia, Proteus vulgaris, Pseudomonas aeruginosa, Bacillus cereus, Bacillus subtilis, and Staphylococcus aureus. The in vitro antibacterial assay was carried out using agar   diffusion method with the extract concentration of 3 mg/well and vancomycin 30 µg/well as the positive control. It was found that the extract exhibits antibacterial effects in range of 10.5 – 14 mm of zone of inhibition (ZOI) against all tested bacteria except for K. pneumoniae. P. aeruginosa showing ZOI of 14 mm was the most sensitive bacterium while P. vulgaris (ZOI of 10.5 mm) was the least sensitive strain to the extract. Based on the preliminary phytochemical screening of using standard qualitative phytochemical tests, this species contains significant amount of alkaloids, flavonoids, terpenoids, and tannins, which might contribute to the antibacterial activity of the extract. Both antibacterial potential and presence of various phytochemicals in the extract could support the traditional uses of E. fusca  , and the obtained results would serve as a basis for further exploration of antibacterial properties of the plant’s leaves.

scholarly journals Screening phytochimique des extraits méthanoliques des feuilles de Combretum collinum et des racines de Anogeisus leiocarpus et effet antibactérien in vitro sur des souches de Staphylococcus aureus multirésistantes

2020 ◽  
Vol 14 (6) ◽  
pp. 2362-2372
Author(s):  
Moussa Bamba ◽  
Christel Neut ◽  
Simon Bordage ◽  
Soro Dramane ◽  
Jules Kouadio N’guessan ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Antibacterial Properties ◽  
Diffusion Method ◽  
Dilution Method ◽  
Plantes Médicinales ◽  
Phytochemical Screening ◽  
Methanolic Extracts ◽  
Anogeissus Leiocarpus

Anogeissus leiocarpus (DC.) Guill. & Perr. (Combretaceae) et Combretum collinum Fresen. (Combretaceae) sont deux plantes de la flore ivoirienne couramment utilisées pour traiter plusieurs pathologies telles que les affections cutanées, le paludisme et la fatigue générale. Ce travail s’inscrit dans le cadre de la valorisation de cette flore. Il vise donc à évaluer l’activité antibactérienne des extraits méthanoliques bruts des feuilles de Combretum collinum et des écorces de racines de Anogeissus leiocarpus sur la croissance "in vitro" des souches de Staphylococcus aureus résistantes à la méticilline. La méthode de diffusion en milieu gélosé (solide) a été utilisée pour évaluer la sensibilité des souches bactériennes aux extraits et à déterminer les concentrations minimales inhibitrices (CMI), Quant au screening phytochimique, il a été réalisé par une chromatographie sur couche mince (CCM). La concentration minimale inhibitrice est comprise entre 0,62 mg/ml et 1,25 mg/ml pour Anogeissus leiocarpus et est de 0,325 mg/ml pour Combretum collinum. Le screening phytochimique a révélé la présence de flavonoïdes et de tanins dans l’extrait méthanolique de Anogeissus leiocarpus alors que dans l’extrait méthanolique de Combretum collinum, ce sont des acides phénoliques qui ont été mis en évidence. Il ressort donc que ces deux plantes sont dotées d’un important pouvoir antibactérien et contiennent plusieurs composés chimiques. Elles pourraient donc constituer des voies de prospection pour la recherche de nouvelles molécules antibactériennes en réalisant une étude bio-guidée des extraits bruts et en évaluant leur cytotoxicité sur des cellules hépatiques saines.Mots clés: Antibactérienne, plantes médicinales, flore ivoirienne, extraits methanoliques English Title: Phytochemical screening of methanolic extracts from leaves of Combretum collinum and roots of Anogeisus leiocarpus and in vitro antibacterial effect on multiresistant strains of Staphylococcus aureus Both Anogeissus leiocarpus (DC.) Guill. & Perr. (Combretaceae) and Combretum collinum Fresen. (Combretaceae) are Ivorian national flora plants commonly used in treating skin disorders, malaria, and general fatigue. The current study consists of the valorization of this flora, and aims therefore at revealing antibacterial activity of the methanol crude extracts obtained from stem bark and leaves of the respective plants, against Methicillin-resistant Staphylococcus aureus strains. Agar gel diffusion method was used to assess bacteria susceptibility, and broth dilution method allowed determination of minimum inhibition concentrations (MICs). These parameters varied from 0.62 mg/ml to 1.25 mg/ml for Anogeissus leiocarpus, while they reached 0.325 mg/ml for Combretum collinum. In addition, phytochemical screening brought about flavonoids and tanins for the plant, and phenolic acids for the other one. In conclusion, these named plants contain several chemical compounds with antibacterial properties, and could be of great interest in the search of new molecular compounds provided with antibacterial activity through bio-guided experiments. Furthermore, they could best hold value by testing those methanol extracts over hepatic sane cells for cytotoxicity assessment. Keywords: antibacterial, medicinal plants, Ivorian national flora, methanolic extracts.    

scholarly journals In Vitro Antibacterial Activity, Preliminary Phytochemical Screening Profile, and In Vivo Toxicity of Seven Traditional Medicinal Plants in Ethiopia

2022 ◽  
Author(s):  
Eyerus Mekuriaw ◽  
Enat Mengistu ◽  
Ayana Erdedo ◽  
Hassen Mamo
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plants ◽  
Ethyl Acetate ◽  
Antibacterial Properties ◽  
Ethanol Extract ◽  
Diffusion Method ◽  
Phytochemical Screening ◽  
Phytochemical Content

The threat of antibiotic-resistance calls for novel antibacterial agents. This study was aimed at screening medicinal plants for their antibacterial properties, phytochemical content and safety. Leaves of Allophylus abyssinicus (Hochst.) Radlk., Dicliptera laxata C.B.Clarke, Ligustrum vulgare L., Solanecio gigas (Vatke) c. Jeffrey and Gymnanthemum myrianthum (Hook.f.) H.Rob.; leaf and stem-bark of Olinia rochetiana A. Juss. and the seed of Cucurbita pepo L. were used. Chloroform and ethanol were used to extract G. myrianthum, D. laxata and O. rochetiana; ethyl acetate and methanol for the rest, and water for all. The extracts were tested against clinical/standard strains of Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi and Staphylococcus aureus by the agar-diffusion method. The minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were determined. Acute toxicity to mice was checked and preliminary phytochemical screening was done. Thirteen extracts, out of 24, were active (inhibition zone >7 mm) at differing levels (9.67±0.33-25.66±0.57 mm) against at least one bacterial strain. The MICs and MBCs were 1.95-15.6 mg/mL and 7.8-125 mg/mL respectively. The aqueous extract of S. gigas, methanol extracts of L. vulgare and A. abyssinicus, and ethanol extract of O. rochetiana leaf were the most active (MIC 1.95mg/ml) against S. aureus. Ethyl acetate extracts of A. abyssinicus, L. vulgare and S. gigas; aqueous of C. pepo, O. rochetiana and G. myrianthum; and all D. laxata had no antibacterial activity. P. aeruginosa was the least susceptible to any extract, although the methanol and aqueous extracts of S. gigas performed better against it. Preliminary phytochemical screening of selected extracts for phenols, flavonoids, tannins, steroids, terpenoids, steroidal glycosides, alkaloids, saponins, resins and glycosides showed positivity at least for four of these phytochemicals with glycoside and terpenoids in nearly all extracts and resin in none. The plants were not toxic to mice at 2000 mg/kg. Further consideration of S. gigas, L. vulgare, A. abyssinicus and O. rochetiana is recommended in light of their promising potential and safety.

Phytochemical analysis and in vitro Antioxidant and Antibacterial activity of the Chloroform leaf extract of Abelmoschus manihot (L.) Medik (Malvaceae)

2021 ◽  
pp. 4719-4726
Author(s):  
Selvaraj Divya ◽  
Subramanian Arivoli ◽  
Samuel Tennyson
Keyword(s):  
Antibacterial Activity ◽  
Leaf Extract ◽  
Antibacterial Agents ◽  
Antibacterial Properties ◽  
Diffusion Method ◽  
Phytochemical Analysis ◽  
Zone Of Inhibition ◽  
Ic50 Value ◽  
Phytochemical Constituents

Medicinal plants are of great significance and global importance as antioxidants and antibacterial agents. In the present investigation the chloroform leaf extract of Abelmoschus manihot was screened for its phytochemical constituents, antioxidant and antibacterial properties. Flavonoids, phenolics, tannins and vitamins were the phytochemical constituents present. GC-MS analysis revealed ten major phytocompounds. In vitro antioxidant assay via DPPH exhibited an IC50 value of 234.7±37.53mg/mL, and its activity could be ascribed due to the presence of the phytocompound α-tocopherol. The antimicrobial activity represented by the zone of inhibition via disc diffusion method, observed no activity against the fungal strains, Aspergillus niger and Candida albicans. Staphylococcus aureus and Escherichia coli exhibited 12 to 14mm zone of inhibition at concentrations 100-500µg, which can be attributed due to the presence of flavonoids. The above results suggests that antioxidant and antibacterial activity exhibited by the chloroform leaf extract of this plant was attributed to the presence of the phytochemicals, especially phenolics and flavonoids. Further in depth studies on the phytochemical constituents of this chloroform leaf extract is recommended, as this extract could serve as an additional implement to natural antioxidant and antibacterial agents.

scholarly journals ANTIBACTERIAL ACTIVITY OF KARAMUNTING (RHODOMYRTUS TOMENTOSA (AITON) HASSK) LEAF EXTRACT AND FRACTIONS

2018 ◽  
Vol 11 (3) ◽  
pp. 163
Author(s):  
Siska Esperanza Sinulingga ◽  
Poppy Anjelisa Zaitun Hasibuan ◽  
Dwi Suryanto
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Leaf Extract ◽  
Ethyl Acetate Fraction ◽  
Positive Control ◽  
Negative Control ◽  
Diffusion Method ◽  
Phytochemical Screening ◽  
Rhodomyrtus Tomentosa ◽  
Agar Well Diffusion Method

 Objective: This study was to analyze the karamunting leaf extract and fractions effectiveness against Staphylococcus aureus and Pseudomonas aeruginosa infection.Methods: Phytochemical screening is done in the extract and fractions of karamunting leaf continue with Standard agar well diffusion method for S. aureus and P. aeruginosa. Dimethyl sulfoxide was used as negative control, and standard antibiotic Kalmicetine (chloramphenicol) was used as positive control. Result: The ethyl acetate fraction showed the highest antibacterial activity against S. aureus and P. aeruginosa. Conclusion: Karamunting leaf can be used to treat the bacterial infection diseases especially infection from S. aureus and P. aeruginosa.

scholarly journals Preliminary phytochemical screening and antibacterial activity of methanol and ethylacetate fractions from Glochidion superbum’s leaves extract

2016 ◽  
Vol 15 (1) ◽  
Author(s):  
Mohammed Dahiru Ahmed ◽  
Mohamed Imad Mustafa Mahmoud ◽  
Muhammad Taher
Keyword(s):  
Antibacterial Activity ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Folk Medicine ◽  
Diffusion Method ◽  
Phytochemical Screening ◽  
Antibacterial Screening ◽  
Agar Disc ◽  
Local Plant

Introduction: The leaves of Glochidion superbum and other similar plants had been in use as a folk medicine by indigenous people in South East Asia for treatment of wound infections and diarrhoea. As recommended by WHO, studies on medicinal plants should include both identification of the chemical constituents and determination of their biological activities. Thus, the study aims to screen various local plant extracts for antibacterial activity and determine the extract fraction showing the highest antibacterial activity. Methods: In this study, Glochidion superbum leaves methanol extract was selected after preliminary antibacterial screening of this extract alongside extracts of Rennellia elliptica (leaves and roots) and Uncaria acida (stem and leaves) by the agar disc diffusion method against Escherichia coli ATCC 35218, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, and Bacillus subtilis ATCC 11778. Furthermore, methanol leave extract of Glochidion superbum was subjected to a qualitative phytochemical screening. The extract was fractionated using Vacuum Liquid Chromatography (VLC) method and the following fractions were obtained: methanol 2.2 g (4.7%), ethylacetate 38.3 g (81.4%) and ethylacetate:methanol 5.0 g (10.6%). Results: The ethylacetate:methanol 1:1 fraction showed the highest in vitro dose-dependent inhibitory activity at concentrations of 25, 50, 100 and 150 mg/mL against the growth of E. coli ATCC 35218, and S. aureus ATCC 25923. Conclusions: This research has demonstrated proof of concept that the plant extract of Glochidion superbum leaves has antibacterial activity against both gram-positive and gram-negative bacteria.

scholarly journals AKTIVITAS ANTIBAKTERI EKSTRAK PERASAN DAUN MENGKUDU (Morinda citrifolia L.) TERHADAP Escherichia coli SECARA IN VITRO

2020 ◽  
Vol 2 (1) ◽  
pp. 26-34
Author(s):  
Margareta Retno Priamsari ◽  
Agastia Cicilia Wibowo
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Drying Shrinkage ◽  
Positive Control ◽  
Negative Control ◽  
Morinda Citrifolia ◽  
Diffusion Method ◽  
Juice Extraction ◽  
Water Inhibition

Noni juice can inhibit the growth of Escherichia coli bacteria. Noni juice extraction needs concentration to extract so that the preparation is more stable in the storage process. The purpose of this study was to determine the antibacterial activity and the amount of the minimum inhibitory concentration of noni juice extract from E. coli bacteria in vitro. This type of experimental research with a completely randomized one-way design. The extract was obtained by concentrating the Noni leaf extract. Extract quality control parameters include organoleptic, yield, drying shrinkage, and qualitative tests of flavonoid and anthraquinone compounds. Antibacterial activity test using the disc diffusion method with an extract concentration of 1.56%; 3.12%; 6.25%; 12.5%; and 25% with 3 replications. Positive control of amoxicillin and negative control of distilled water. Inhibition is known from the zone formed around the paper disc. The data obtained were statistically analyzed using Kruskall Wallis followed by Mann Whitney with a 95% confidence level. The results showed that the variation in the concentration of the noni juice extract had a significant effect (p <0.05). The biggest inhibitory zone was seen at 25% concentration of 10.16 mm and included in the strong category. The minimum inhibitory power was produced at a concentration of 3.12% at 2.50 mm with a weak treatment category.

scholarly journals Antibacterial and Toxicity Evaluation of Eastern Medicine Formulation Eczegone for the Management of Eczema

Dose-Response ◽  
2020 ◽  
Vol 18 (3) ◽  
pp. 155932582095679
Author(s):  
Muhammad Amjad Chishti ◽  
Ejaz Mohi-Ud-Din ◽  
Shahbaz Ahmad Zakki ◽  
Muhammad Rahil Aslam ◽  
Sheraz Siddiqui ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Safety Evaluation ◽  
Diffusion Method ◽  
In Vitro Toxicity ◽  
Klebsiella Pneumonia ◽  
Lawsonia Inermis ◽  
Disk Diffusion Method ◽  
Skin Keratinocytes

The present study was conducted to evaluate the antibacterial activity, in vitro and in vivo cytotoxicity, cell viability and safety of Eastern Medicine coded medicinal formulation Eczegone comprising extracts of Azadirachta indica (Azin) , Fumaria indica (Fuin) , Sphaeranthus indicus (Spin) and Lawsonia inermis (Lain). This work also evaluated antibacterial activity of Eczegone formulation having above mentioned plants ethanolic extracts against different bacteria’s by disk diffusion method. In vitro toxicity of Eczegone formulation was investigated by using human skin keratinocytes HaCaT cell line, crystal violet stained cells, and methyl tetrazolium cytotoxicity (MTT) assay. In vivo acute oral and dermal cytotoxicity was determined by using Swiss albino mice and albino rabbits, respectively. The Eczegone formulation showed antibacterial activity against 3 gram negative bacteria including Escherichia coli, Klebsiella pneumonia, Proteus vulgaris and a gram positive Staphylococcus aureus. We didn’t observe any toxic effect of Eczegone formulation on the skin keratinocytes. Furthermore, the Ezcegone formulation was non-irritant according to draize score (OECD TG404, 2002). After rigorous safety evaluation by in vitro and in vivo acute oral and dermal toxicity analysis, we concluded that Eczegone formualtion possessses antibacterial effects and is safe, non-toxic, non-irritant, and the drug would be subjected for further biochemical and clinical studies.

scholarly journals IN VITRO ASSESSMENT OF ANTIBACTERIAL ACTIVITY OF STEM AND ROOT OF RAUWOLFIA SERPENTINA AGAINST DIFFERENT BACTERIA

2021 ◽  
Vol 12 (6) ◽  
pp. 87-90
Author(s):  
Virendra Vaishnav ◽  
Debasish Sahoo ◽  
Tanushree Chatterjee
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Antimicrobial Agents ◽  
Development Program ◽  
Positive Control ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Rauwolfia Serpentina

Medicinal Plants are the good source of natural antimicrobial agents. The main aim of present study was to evaluate the antibacterial activity of stem and root of Rauwolfia serpentina against six microorganism, Powdered stem and root of plant were extracted with acetone, chloroform and methanol and streptomycin used as positive control. The antibacterial activity of Rauwolfia serpentine was detected by using disc diffusion method and agar well diffusion method on the following bacteria- Bacillus cereus, Staphylococcus aureus, Bacillus fusiformis, Escherichia coli, Pseudomonas aeruginosa and P. luminescens. The experiment reported that R. serpentina Root methanol extract shown 14.86 ± 1.11 highest antibacterial activity against Pseudomonas aeruginosa through well diffusion method. Whereas root chloroform recorded 13.46 ± 1.28 highest antibacterial activity against E. coli through disc diffusion method, maximum zone of inhibition 22.66±0.52 mm was found for the positive control, streptomycin through well diffusion method. Further studies should be undertaken to reveal the correct mechanism of action of antimicrobial effect to identify the active ingredients which can be used in drug development program.

scholarly journals In Vitro Assessment of the Antimicrobial Efficacy of Chitosan from Scylla serrata Against the Human Pathogens

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Sangeetha B ◽  
Indra V ◽  
Abdul Rahim M ◽  
Venkadachalam E
Keyword(s):  
Antibacterial Activity ◽  
Salmonella Typhi ◽  
Scylla Serrata ◽  
Diffusion Method ◽  
Klebsiella Pneumonia ◽  
Crab Shell ◽  
Human Pathogens ◽  
Agar Disc ◽  
Pharmaceutical Industries

Chitosan, a polysaccharide derivative of chitin forms the structural components in the exoskeletons of crustacean animals and is also found in the cell walls of fungi. Chitosan is produced primarily from the crab shell waste through chemical means. The chemical structure of chitosan has been identified and characterized by FT-IR and XRD. In the current study, the antimicrobial activity of chemically deacetylated chitosan extracts of mud crabs (Scylla serrata) was evaluated against five human pathogenic isolates viz. Staphylococcus aureus, Salmonella typhi, Klebsiella pneumonia, Bacillus cereus and Pseudomonas aeruginosa using agar disc diffusion method. These were performed to determine the crystallinity and functional properties of chitosan. The results showed that the antibacterial effect increased with increasing chitosan concentration. This study showed that chitosan isolated from crab shell has potential antibacterial activity therefore it can be utilized in the food and pharmaceutical industries, and that antibacterial activity may be due to functional groups present in the crab shell.

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