scholarly journals Antibacterial activities of aqueous and methanol leaf extracts of Solanum incanum Linn. (Solanaceae) against multi-drug resistant bacterial isolates

2019 ◽  
Vol 13 (4) ◽  
pp. 70-76 ◽  
Author(s):  
Oluwasoji Akanmu Ayodele ◽  
Alhaji Bulama Yakaka ◽  
Tunde Balogun Sulayman ◽  
Musa Samaila
Keyword(s):  
Antibacterial Activities ◽  
Drug Resistant ◽  
Bacterial Isolates ◽  
Leaf Extracts ◽  
Solanum Incanum

Antibacterial Activities of Sirih Merah (Piper crocatum) Leaf Extracts

2019 ◽  
Vol 5 (3) ◽  
pp. 1-10
Author(s):  
Puspa Julistia Puspita ◽  
Mega Safithri ◽  
Nirmala Peni Sugiharti
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Agent ◽  
Leaf Extract ◽  
Antibacterial Activities ◽  
Leaf Extracts ◽  
Herbal Plants

Piper crocatum is one of medicinal herbal plants with a large number of benefits. Usually herbal plants have activity as antibacterial agent. Therefore, the objectives of this research were to obtain information on antibacterial activities of the leaf extracts of Piper crocatum againts four types of bacteria, in that Staphylococcus, Bacillus substilis, Escherichia coli, and Pseudomonas aeruginosa and then to analyze the phytochemistry of the leaf extracts of Piper crocatum. The leaves of Piper crocatum were extracted by maceration and reflux using ethanol 30%. The assays of the antibacterial activities and phytochemistry on the extracts were carried out using the method of Maria Bintang. Results showed that the yield of the extraction using ethanol by maceration method was 20.8%. Meanwhile, using the reflux method, the yield was obtained about 26.25%. The phytochemistry analysis showed that the leaf extracts of Piper crocatum contained alkaloid, steroid and tanin. According to this study, it was found that the leaf extract of Piper crocatum can be used to inhibit the growth of B. subtilis and P. aeuruginosa, but can not inhibit the growth of E.coli and S. aureus.

scholarly journals Antibacterial Activities ofGinkgo bilobaL. Leaf Extracts

2011 ◽  
Vol 11 ◽  
pp. 2237-2242 ◽  
Author(s):  
S. C. Sati ◽  
Savita Joshi
Keyword(s):  
Escherichia Coli ◽  
Inhibitory Concentration ◽  
Methanol Extract ◽  
Antibacterial Activities ◽  
Erwinia Chrysanthemi ◽  
Disc Diffusion ◽  
Zone Of Inhibition ◽  
Leaf Extracts ◽  
Hexane Extracts ◽  
Broth Dilution

The antibacterial activity of methanol, ethanol, chloroform, and hexane extracts of the leaves of Himalayan gymnospermous plantGinkgo bilobaL. was assessed against five animal and plant pathogenic strains (Agrobacterium tumefaciens, Bacillus subtilis, Escherichia coli, Erwinia chrysanthemi, and Xanthomonas phaseoli) employing disc-diffusion and broth-dilution assays. The methanol extract showed the highest activity (zone of inhibition of 15–21 mm) followed by ethanol (14–19 mm), chloroform (15–20 mm), and hexane (14–19 mm) extracts at 250 μg/mL. A minimum inhibitory concentration (MIC) of 7.8 μg/mL was found for the methanol extract against most of the pathogens tested.

scholarly journals Multidrug Resistant and Extensively Drug Resistant Bacteria: A Study

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Silpi Basak ◽  
Priyanka Singh ◽  
Monali Rajurkar
Keyword(s):  
Antimicrobial Resistance ◽  
Antibiotic Susceptibility ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Close Monitoring ◽  
Care Hospital ◽  
Drug Resistant ◽  
Bacterial Isolates ◽  
Bacterial Strains ◽  
Extensively Drug Resistant

Background and Objective. Antimicrobial resistance is now a major challenge to clinicians for treating patients. Hence, this short term study was undertaken to detect the incidence of multidrug-resistant (MDR), extensively drug-resistant (XDR), and pandrug-resistant (PDR) bacterial isolates in a tertiary care hospital.Material and Methods. The clinical samples were cultured and bacterial strains were identified in the department of microbiology. The antibiotic susceptibility profile of different bacterial isolates was studied to detect MDR, XDR, and PDR bacteria.Results. The antibiotic susceptibility profile of 1060 bacterial strains was studied. 393 (37.1%) bacterial strains were MDR, 146 (13.8%) strains were XDR, and no PDR was isolated. All (100%) Gram negative bacterial strains were sensitive to colistin whereas all (100%) Gram positive bacterial strains were sensitive to vancomycin.Conclusion. Close monitoring of MDR, XDR, or even PDR must be done by all clinical microbiology laboratories to implement effective measures to reduce the menace of antimicrobial resistance.

scholarly journals Antibacterial Activities of Leaf Extracts of Jatropha tanjorensis Ellis and Saroja (Euphorbiaceae)

2018 ◽  
Author(s):  
Safiya Yahaya Daniyan ◽  
Chinenye Catherine Ukubuiwe ◽  
Azubuike Christian Ukubuiwe ◽  
Oghenekevwe Juliet Oluwafemi ◽  
Prince Ossai Chukwudi
Keyword(s):  
Antibacterial Activities ◽  
Leaf Extracts
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