scholarly journals Antibacterial and antifungal activity of methanolic extracts of Salix alba L. against various disease causing pathogens

2023 ◽  
Vol 83 ◽  
Author(s):  
B. Javed ◽  
F. Farooq ◽  
M. Ibrahim ◽  
H. A. B. Abbas ◽  
H. Jawwad ◽  
...  

Abstract The present study was aimed to manifest the antibacterial and antifungal activity of methanolic extracts of Salix alba L. against seven Gram-positive and Gram-negative bacterial pathogens e.g. Streptococcus pyogenes, Staphylococcus aureus (1), S. aureus (2), Shigella sonnei, Escherichia coli (1), E. coli (2) and Neisseria gonorrhoeae and three fungal isolates from the air such as Aspergillus terreus, A. ornatus, and Rhizopus stolonifer. Two different serotypes of S. aureus and E. coli were used. The agar well-diffusion method results showed the dose-dependent response of plant extracts against bacterial and fungal strains while some organisms were found resistant e.g. E. coli (1), S. sonnei, A. terreus and R. stolonifer. The highest antibacterial activity was recorded at 17.000±1.732 mm from 100 mg/mL of leaves methanolic extracts against S. pyogenes while the activity of most of the pathogens decreased after 24 h of incubation. The highest antifungal activity was reported at 11.833±1.0 mm against A. ornatus at 50 mg/mL after 48 h of the incubation period. These experimental findings endorse the use of S. alba in ethnopharmacological formulations and suggest the use of methanolic extracts of the said plant to develop drugs to control the proliferation of resistant disease causing pathogenic microbes.

2020 ◽  
Vol 8 (6) ◽  
pp. 179-187
Author(s):  
Titik Taufikurohmah ◽  
Tasha Anandya Tantyani

This Research on the antibacterial and antifungal activity of nanosilver against Neisseria gonorrhoeae and Candida albincas fungi has been carried out. The purpose of this study was to determine antibacterial activity of nanosilver against Neisseria gonorrhoeae and antifungal activity against Candida albincas. Synthesis Nanosilver uses bottom up method and characterized using UV-Vis Spectrophotometer. Nanosliver concentrations used were 30, 40, 50, and 60 ppm. Antibacterial and antifungal activity tests using disk diffusion method. Observations obtained in form of the presence or absence of clear zones formed around paper discs indicate the inhibition of nanosilver on microbial growth. The results of testing the antifungal activity of Candida albicans on nanosilver with concentrations of 30, 40, 50 and 60 ppm resulted in clear zones of 9.73 nm, 11.46 nm, 11.93 nm, and 13 nm with fungal inhibition response categories is medium and strong. The results antibacterial activity test of Neisseria gonorrhoeae on nanosilver with concentrations of 30, 40, 50 and 60 ppm did not show any clear zone around the disc, it showed that nanosilver in this study did not have antibacterial activity against Neisseria gonorrhoeae.


2021 ◽  
Vol 2 (2) ◽  
pp. 93-103
Author(s):  
Nathaniel Hiwandika ◽  
Susana Elya Sudrajat ◽  
Ika Rahayu

Cloves is one of the native Indonesian plants and is used in many aspects of life. Cloves are used in multiple industries and as detergents, soaps, perfumes, food seasonings, aromatherapy, etc. Cloves are mainly used for ingredients in kretek cigarettes in Indonesia. Various studies of cloves reported they have good pharmacological and therapeutic effects. The main compounds of clove extract are eugenol and β-caryophyllene, which are powerful antibacterial and antifungal agents. The clove ethanolic extract showed the activity to inhibit Gram positive and negative bacteria such as B. cereus, S. aureus, E. coli, P. aeruginosa, S. pneumoniae, S. aureus, S. epidermidis, A. hydrophila, K. pneumoniae, P. gingivalis, and P. mirabilis. Clove essential oil has shown the ability to inhibit the growth of V. inaequalis, C. albicans, C. glabrata, and C. tropicalis. Cloves extract can be used as an essential ingredient of various medicines. However, it requires further research and trials.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Chakradhar Sridhar ◽  
Nagesh Gunvanthrao Yernale ◽  
M. V. N. Ambika Prasad

The present study deals with the synthesis and characterization of nanocrystalline vanadium pentoxide (V2O5) nanoparticles and their antibacterial and antifungal activity onStaphylococcus aureus and Aspergillus niger, respectively, by agar diffusion method. The metal oxide has been synthesized by employing the sol-gel method, polyaniline (PANI) has been synthesized by chemical oxidation, and PANI/V2O5composites have been synthesized byin situpolymerization method with different ratios (10, 20, 30, 40, and 50 weight%) of V2O5in PANI. The newly prepared composites were characterized by FTIR and powder X-ray diffraction (P-XRD) techniques and are found to be formed of PANI/V2O5nanocomposites, and also the compounds showed moderate antibacterial and antifungal activity.


Author(s):  
Laila Jarin ◽  
Md Shafiqur Rahman ◽  
MN Anwar

Petroleum ether, carbon tetrachloride, chloroform and ethyl acetate extracts of Plumeria rubra leaves were studied for their antimicrobial activities against eleven human pathogenic bacteria, viz., Shigella dysenteriae, S. sonnei, Salmonella typhi, S. paratyphi, Bacillus subtilis, B. megaterium, B. cereus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Vibrio cholerae and four human pathogenic fungi, viz., Aspergillus niger, A. ochraceus, A. ustus and Candida albicans using disc diffusion and poisoned food method, respectively. Chloroform and ethyl acetate extract exhibited moderate to good antibacterial and antifungal activity against all the pathogens tested. The ethyl acetate extracts exhibited the largest zone of inhibition (25 mm in diameter with 2000 mg/disc extract) against E. coli. The highest inhibition of fungal radial mycelial growth (62.00% with 100 mg extract/ml medium) was recorded against A. ustus with ethyl acetate extract. The MICs were determined by broth macrodilution technique. The ethyl acetate extract exhibited the lowest MIC (750 mg/ml) against E. coli. However, for fungi the lowest MIC was 500 mg/ml against A. ustus with the same extract. DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13409 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):87-94, 2008


Author(s):  
AJIT KUMAR MARISETTI ◽  
VENKATARATHANAMMA V.

Objective: To evaluate the antibacterial and antifungal activity of three different medicinal plants invitro. Oil extracts of the plants from three different families (Hedyotis corymbosa, Inula racemose, Holostemma adakodien) are used to find the antibacterial and antifungal activity. Methods: Study of anti-microbial activity using agar cup diffusion method, inoculums preparation, Anti-bacterial activity screening (well diffusion method), Anti-fungal activity screening (well diffusion method) are the different methods which are used to find the anti-bacterial and anti-fungal activities of the oil extracts of the above medicinal plants. The activity of these oil extracts and the selected antibiotics are evaluated against four bacterial strains (E. Coli, S. aureus and P. aeruginosa) and three Candida fungal strains (albicans, parapsilosis and tropicalis.). The anti microbial activity of Hedyotis corymbosa, Inula racemose, Holostemma adakodien oil extracts zone of inhibition evaluation was compared with positive control of fungal strain Fluconozole and bacterial strain Norfloxacin, Cefepime and Gatifloxacin. Results: The anti microbial activity of Hedyotis corymbosa, Inula racemose, Holostemma adakodien oil extracts zone of inhibition evaluation was compared with positive control of fungal strain Fluconozole and bacterial strain Norfloxacin, Cefepime and Gatifloxacin. Further studies are needed to explore the novel antibacterial bioactive molecules. Conclusion: The plants Hedyotis corymbosa, Inula racemose and Holostemma adakodien have shown significant anti-bacterial and anti-fungal activity.


2011 ◽  
Vol 8 (s1) ◽  
pp. S149-S154 ◽  
Author(s):  
P. Panneerselvam ◽  
G. Geete Ganesh

The syntheses of series of 2, 5-disubstituted 1, 3, 4-oxadiazole derivatives are described. A total of twelve new compounds were synthesized and characterized by IR,1H-NMR and Mass spectral data. All newly synthesized compounds were screened for their antimicrobial activityi.e. antibacterial activity againstS. aureusandE. coliand antifungal activity against fungusA. nigar. CompoundsG5andG7exhibited significant both antibacterial and antifungal activity whileG2,G10andG3,G9showed antibacterial and antifungal activity respectively. These compounds were 2, 5-disubstituted 1, 3, 4-oxadiazole moiety at position two and five showed reasonable antibacterial and antifungal activity.


Author(s):  
Bindu Singh Yadav ◽  
Yeddu Trilochana ◽  
Kiran Kumari ◽  
Saurabh Singh ◽  
Anupam K Sachan

In today’s scenario, fungal and bacterial infections are one of the most challenging pestilential diseases for the health-care professional which is increasing with a very high rate in the growing population, especially among the immune compromised people.The present work involved the study to extract active principles of Moringa concanensis and perform antibacterial and antifungal activity for various extracts. The leaves were dried powdered unexpected using solvents petroleum ether, chloroform, ethanol and water. Chemical tests were performed to ascertain presence of various classes of phyto-constituents like alkaloids, glycosides, saponins, carbohydrates, proteins, amino acids tannins, flavonoids and phenolic substances. All four extracts showed the presence of various phytochemicals responsible for multiple pharmacological activities. The extracts were reconstituted using 1% aqueous solution of carboxy methyl cellulose and were tested for antibacterial and antifungal activity against six microorganisms, namely Bacillus subtilis, Enterobacter aerogenes, Bacillus cereus, Aspergillus Flavus, Aspergillus Niger and Helminthosporium, using well diffusion method. The results of the activity are promising with chloroform extract showing highest inhibitory activity against most of the organisms. All the extracts were able to demonstrate significant activity compared to control inhibition of microorganisms tested and hold key to discover lead molecules after further scientific investigation.


Author(s):  
Neeraj Kumar ◽  
Dhruti Bhatt ◽  
Chandra Shekhar Sharma ◽  
Hamendra Pratap Singh ◽  
Harshda Pandiya ◽  
...  

A series of of Chalconyl Incorporated Schiff’s Bases of Sulphonamides was synthesized by reacting substituted chalcone derivatives with Sulphacetamide sodium in methanol. All the title compounds synthesized (2a-2d) were tested for antibacterial and antifungal activity using E. coli, P. aeruginosa, S. aureus, S. pyogenus and C. albicans, A. niger and A. clavatus respectively as microbial strains and Sulphacetamide sodium as standard. The compound 2d showed significant antibacterial activity and 2a showed moderate antifungal activity as compared with Sulphacetamide Sodium.


2003 ◽  
Vol 58 (9-10) ◽  
pp. 687-690 ◽  
Author(s):  
Ahmet C. Goren ◽  
Gokhan Bilsel ◽  
Mine Bilsel ◽  
Huseyin Demir ◽  
E. Esin Kocabaş

AbstractThe water-distilled essential oil the leaves of Coridothymus capitatus were analyzed by GC/MS and also analyzed by direct thermal desorption GC/MS. Comparison was made between two analyses techniques. The essential oil consisted mainly of monoterpenes 98.9%, while oxygenated hydrocarbons were identified as 55.6% and non-oxygenated hydrocarbons as 43.6%. As major components were found carvacrol (35.6%), p-cymene (21.0%), thymol (18.6%), γ-terpinene (12.3%), α-terpinene (3.2%), β-myrcene (3.0%) and α-thujene (1.3%) by hydrodistillation and by the GC/MS method. The direct thermal desorption GC/MS analysis also showed the same major components, namely carvacrol (51.6%), thymol (21.7%), pcymene (9.7%) γ-terpinene (8.2%), α-terpinene (1.64%). The essential oil of C. capitatus showed strong activity against S. aureus, P. vulgaris, P. aeruginosa, E. coli, K. pneumonia, B. subtilis, E. faecalis, S. epidermidis and C. albicans.


2021 ◽  
Vol 7 (2) ◽  
pp. 79
Author(s):  
Isnaini Isnaini ◽  
Agung Biworo ◽  
Husnul Khatimah ◽  
Khusnan Mustofa Gufron ◽  
Shafa Rahmani Puteri

Galam (Melaleuca cajuputi subsp. Cumingiana (Turcz.) Barlow) is a peat swamp forest plant. This plant is used to treat respiratory diseases, colitis, sore throat, itchy skin, diarrhea, and dizziness. This study aimed to analyze the antibacterial and antifungal activity of the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow flowers and fruit against Escherichia coli and Candida albicans bacteria. This research is a pretest-posttest research with control group design and consists of 3 stages of research. The first stage is the phytochemical screening test, the second stage determines the minimum inhibitory concentration (MIC) and the third determines the minimum bactericidal concentration (MBC). The results showed that the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow flowers and fruit contained terpenoids, flavonoids, phenols, saponins, quinones, steroids, tannins, while alkaloid compounds only found in the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow fruit. The MIC and MBC values ​​of M. cajuputi subsp. Cumingiana (Turcz.) Barlow flower methanol extract against E. coli were 1.67 and 2.083 mg/mL, respectively, while the MIC and MBC values ​​of the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow flower against C. albicans were 3.125 and 25 mg/mL. The MIC and MBC values ​​of the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow fruit against E. coli have same value  were 3.334 mg/mL, while the MIC and MBC values ​​of the methanol extract of M. cajuputi subsp. Cumingiana (Turcz.) Barlow fruit against C. albicans were 3.125 and 12.5 mg/mL, respectively. Keywords: Galam  antibacterial, antifungal, Escherichia coli, Candida albicans


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