scholarly journals Antimicrobial activity of medicinal plant leaf extracts against pathogenic bacteria

2014 ◽  
Vol 4 ◽  
pp. S920-S923 ◽  
Author(s):  
Atikya Farjana ◽  
Nagma Zerin ◽  
Md. Shahidul Kabir
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plant ◽  
Pathogenic Bacteria ◽  
Leaf Extracts ◽  
Plant Leaf

Biological synthesis of silver nanoparticles using plant leaf extracts and their specific antimicrobial activity

2014 ◽  
Vol 31 ◽  
pp. S173
Author(s):  
Beom Soo Kim ◽  
Bipinchandra Salunke ◽  
Shailesh Sawant ◽  
Bassam Alkotaini
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Biological Synthesis ◽  
Leaf Extracts ◽  
Plant Leaf

scholarly journals Extraction of the Metabolites from Medicinal plant Euphorbia leaf

2021 ◽  
Vol 37 (5) ◽  
pp. 1257-1261
Author(s):  
Uday M. Muddapur ◽  
Aejaz A. Khan ◽  
Amal Bahafi ◽  
S. M. Shakeel Iqubal ◽  
Abdul Rahman Ikbal ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plant ◽  
Ethyl Acetate ◽  
Leaf Extract ◽  
Research Work ◽  
Leaf Extracts ◽  
Different Types ◽  
Phytochemical Contents ◽  
Ethyl Acetate Extracts

The antimicrobial, phytochemical contents of extracts obtained from the leaf extract of mature Euphorbia pilulifera (E. pilulifera) were examined in this research work. Using ethyl acetate extracts of the leaves of Euphorbia pilulifera, phytochemical metabolites were studied. Further using chromatography, different components were separated and its antimicrobial activity was studied. Different types of bacterial organisms were used for evaluating the antimicrobial activity. The results indicated that leaf extracts are more sensitive towards organisms. Thus the presence of phytochemicals in the leaf extract can be used for the treatment of different diseases.

scholarly journals In vitro antimicrobial activity of artemisia annua leaf extracts against pathogenic bacteria

2014 ◽  
Vol 6 ◽  
pp. 93-97 ◽  
Author(s):  
Ahmad Tajehmiri ◽  
Fahimeh Issapour ◽  
Mina Nasiri Moslem ◽  
Maryam Tavakoli Lakeh ◽  
Masoud Hassani Kolavani
Keyword(s):  
Antimicrobial Activity ◽  
Pathogenic Bacteria ◽  
Artemisia Annua ◽  
Leaf Extracts ◽  
In Vitro Antimicrobial Activity

scholarly journals In vitro Antimicrobial Activity of Ethanolic Leaf Extracts of Hibiscus Asper Hook. F. and Hibiscus Sabdariffa L. on some Pathogenic Bacteria

2021 ◽  
Vol 2 (3) ◽  
pp. 1-12
Author(s):  
Joseph Olowo Arogbodo ◽  
Oyetayo Bolanle Faluyi ◽  
Festus Omotere Igbe
Keyword(s):  
Antimicrobial Activity ◽  
Pathogenic Bacteria ◽  
Leaf Extract ◽  
Hibiscus Sabdariffa ◽  
Bacterial Isolates ◽  
Leaf Extracts ◽  
In Vitro Antimicrobial Activity ◽  
Significant Difference ◽  
Ethanolic Leaf Extract

Purpose: The study aims to assess the antimicrobial activity of ethanolic leaf extracts of Hibiscus asper and Hibiscus sabdariffa against eight bacterial isolates. Materials and Methods:  An in vitro Antimicrobial activity of ethanolic leaf extract of the two plants against eight nosocomical and pathogenic bacteria viz; Pseudomonas aeruginosa (PAE), Proteus vulgaris (PVU), Klebsiella aerogenes (KAE), Staphylococcus aureus (SAU), Bacillus cereus (BCE), Escherichia coli (ECO), Moraxella catarrhalis (MCA) and Salmonella typhi (STY) was carried out using agar well diffusion assay with the concentration range of 3.13 – 100 mg/mL. Results: H. asper and H. sabdariffa showed significant difference (p< 0.05) in antimicrobial activity against BCE over the rest of the isolates. Inhibition zone diameters exhibited by the isolates to ethanolic leaf extract of H. asper was in descending order of BCE (15.00 ± 1.00a) >ECO (11.67 ± 0.58b) >SAU (7.67 ± 0.58c) >PAE (6.67 ± 0.58d) >STY (5.67 ± 0.58e) while that of H. sabdariffa was in the order BCE (15.33 ± 1.15a) > MCA (11.33 ± 1.15b) > SAU (11.00 ± 1.00bc) > KAE (9.67 ± 0.58c) > PAE (8.00 ± 1.00d) >PVU (7.67 ± 0.57e). PVU, KAE and MCA were resistant to the extract of H. asper while only STY was resistant to that of H. sabdariffa. Conclusion: H. sabdariffa extract demonstrated higher antimicrobial activity against the selected bacterial isolates than H. asper. However, the two extracts minimum inhibition concentrations (MICs) ranged from 25 mg/mL to 12.5 mg/mL. This is worthy of further exploration by pharmacological industries in the formulation of potent broad spectrum antibiotics for combating the present health challenge due to antimicrobial resistance.

Antimicrobial activity of leaf extracts of Eupatorium triplinerve Vehl. against some human pathogenic bacteria and phytopathogenic fungi

1970 ◽  
Vol 37 (1) ◽  
pp. 89-92 ◽  
Author(s):  
Md Shafiqur Rahman ◽  
Mohammad Junaid
Keyword(s):  
Antimicrobial Activity ◽  
Mycelial Growth ◽  
Pathogenic Bacteria ◽  
Antimicrobial Activities ◽  
Chloroform Extract ◽  
Phytopathogenic Fungi ◽  
Zone Of Inhibition ◽  
Leaf Extracts ◽  
Human Pathogenic Bacteria ◽  
Ethyl Acetate Extracts

Petroleum ether, carbon tetrachloride, chloroform, and ethyl acetate extracts of Eupatorium triplinerve Vehl. leaves were investigated for their antimicrobial activities against 11 human pathogenic bacteria and six phytopathogenic fungi. The crude extracts showed good activity against the organisms tested herein. The chloroform extract exhibited the largest zone of inhibition (22 mm in diam with 1000 μg/disc extract) against Vibrio and the highest inhibition of fungal radial mycelial growth (73.5% with 100 μg extract/ml medium) against Colletotrichum corchori. The chloroform extract exhibited the lowest MIC against Vibrio (250 μg/ml) and C. corchori (62.5 μg/ml). It appeared that E. triplinerve could be a potential natural source of new antimicrobial agent.    Key words: Antimicrobial activity, Leaf extract, Eupatorium triplinerve doi:10.3329/bjb.v37i1.1570 Bangladesh J. Bot. 37(1): 89-92, 2008 (June)

scholarly journals STUDY OF ANTIMICROBIAL ACTIVITY OF THE FOLKLORE MEDICINAL PLANT, ACALYPHA FRUTICOSA FORSSK.

2017 ◽  
Vol 4 (2) ◽  
pp. 57-60
Author(s):  
Thambiraj J
Keyword(s):  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Medicinal Plant ◽  
Ethyl Acetate ◽  
Pathogenic Bacteria ◽  
Antimicrobial Properties ◽  
Pathogenic Fungi ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Rhizopus Sp

The purpose of the study is to examine the antimicrobial efficacy of root extracts of the folklore medicinal plant species, Acalypha fruticosa Forssk by using three alcoholic solvents viz; petroleum ether, ethyl acetate and methanol were tested against ten human pathogenic bacteria viz., Pseudomonas aeruginosa, P. stutzeri, Escherichia coli, Micrococcus sp., Lactobacillus sp., Servatia sp., Moraxetta sp., Bacillus subtilis, B. thuriengensis, and Klebsiella pneumoniae and ten human pathogenic fungi viz., Aspergillus niger, A. flavus, A.baumannii, Fusarium oxysporum, F. solani, Mucor rouxii, Alternaria alternata, Candida albicans, Cladosporium sp. and Rhizopus sp. for assessing the antimicrobial properties by adapting disc diffusion method. The results of the study revealed that all extracts showed varied degree of antimicrobial activity against the tested pathogens. However, the methanol extracts exhibited higher inhibition zone (21.83 mm) against the bacterium, Bacillus subtilis and ethyl acetate extracts showed higher inhibiotion zone (24.83 mm) against the fungus, Rhizopus sp. Results concluded that this spices contain high amount of secondary metabolites due to these metabolites they have high antimicrobial activity and it can be used as good bio- preservater and it can also use for medicinal purpose.

Sign in / Sign up

Export Citation Format

Share Document