scholarly journals Antagonistic Study of Lantana camara (Linn) against with Pathogenic Bacteria

1970 ◽  
Vol 7 (7) ◽  
pp. 64-67 ◽  
Author(s):  
Geeta Shrestha Vaidya ◽  
Nabin Bhattarai
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Organic Solvent ◽  
Pathogenic Bacteria ◽  
Antibacterial Effect ◽  
Research Work ◽  
Lantana Camara ◽  
Bacterial Strains ◽  
Water Solvent

A research work of antagonistic effect of water solvent and organic solvent (Ethanol of different concentration 50 % and 100 %) of extracts of Lantana camara were studied against with pathogenic fifteen strains of bacteria.Among fifteen species, of bacteria most of them were inhibited by L.camara extracts and only two species such as Klebsella oxytoca and Klebsella pneumoniae did not showed antibacterial activity with same extract with same concentration. Extracts obtained from the organic solvent and water solvent showed the different antagonistic properties with the same bacterial strains. Those bacterial strains which were inhibited their growth by water solvent could not inhibited by organic solvent extracts. This depends on presence of polar and non-polar bioactive compounds in the extracts. It also depends on polar and non-polar solvents used for the plant extract. Organic solvent extracts showed antibacterial effect towards Pseudomonas aeruginosa, Staphylococcus sp., Bacillus cereus, Bacillus subtilis, Bacillus thurengiensis, Escherichia coli, Staphylococcus aureus, Proteus mirabilis and water solvent extracts showed antibacterial effect towards Pseudomonas aeruginosa, Staphylococcus sp., Citrobacter frundi, Proteus sp., Bacillus subtilis, Enterobacter aerogenes, Salmonella paratyphie, Staphylococcus aureus, Shigella dysenteria. Both solvent extracts showed high antibacterial effect towards Staph aureus, Staphylococcus sp. and Pseudomonas aeruginosa. Both plant extracts showed selective antibacterial effect with different strains of bacteria, which shows that these are confined to cure the same bacterial diseases. Key words: Lantana camara; Pathogenic bacteria; Antimicrobial; Organic and water solvent; Concentration. DOI: 10.3126/sw.v7i7.3828 Scientific World Vol.7(7) 2009 pp.64-67

scholarly journals Antibacterial and Antifungal Effect of Eupatorium adenophorum Spreng against Bacterial and Fungal Isolates

1970 ◽  
Vol 10 ◽  
pp. 91-95 ◽  
Author(s):  
Nabin Bhattarai ◽  
Geeta Shrestha
Keyword(s):  
Staphylococcus Aureus ◽  
Organic Solvent ◽  
Plant Extracts ◽  
Antibacterial Effect ◽  
Enterobacter Aerogenes ◽  
Bacterial Strains ◽  
Eupatorium Adenophorum ◽  
Salmonella Spp ◽  
Water Solvent ◽  
Staphylococcus Spp

A research work on antimicrobial effect of water solvent and organic solvent extracts of different concentration of Eupatorium adenophorum (Spreng) was conducted at Nepal Academy of Science and Technology (NAST) during August 2008. Fifteen strains of bacteria, six strains of fungi and two concentrations, 50% and 100% of plant extracts were taken for the study. Among the 15 strains of bacteria, most of them were inhibited with E. adenophorum extracts and only three species, Klebsiella oxytoca, K. pneumoniae and Shigella dysenteriae did not show antibacterial activity with the same extract. Extracts obtained from the organic solvent and water solvent showed different antimicrobial properties with the same bacterial strains. Those bacterial strains whose growth was inhibited by water solvent could not inhibited by organic solvent extracts. Organic solvent extract showed antibacterial effect towards Proteus spp., Salmonella spp., Staphylococcus spp., Bacillus subtilis, B. thurengiensis, B. cereus, Enterobacter aerogenes, Salmonella paratyphi, Staplococcus aureus, Proteus mirabilis and water solvent extract showed antibacterial effect towards Peudomonas aeruginosa, E. coli, Staphylococcus aureus, Staphylococcus spp., Citrobacter frundii, Proteus spp., B. subtilis, B. thurengiensis, Enterobacter aerogenes, Salmonella spp. and S. paratyphi. Altogether 12 species out of 15 were inhibited by E. adenophorum extracts. Both solvent extracts showed high antibacterial effect towards Proteus spp., Staphylococcus spp., Staphylococcus aureus and Pseudomonas aeruginosa. Among the six species of the fungi, Fusarium spp. were inhibited by plant extract while the Aspergillus spp. and Stenophylum botryosum did not show any effect of the extracts. The plant extracts showed selective effect with different strains of bacteria and fungi, which indicated that they were confined to cure the same bacterial diseases and fungal diseases.Key words: Plant extract; Bacteria; Fungi; Antibacterial; Antifungal; Eupatorium adenophorumDOI: 10.3126/njst.v10i0.2834Nepal Journal of Science and Technology Volume 10, 2009 December Page: 91-95

scholarly journals Spatial Structure and Antimicrobial Activity of Cyclopropane Derivative of Limonene

2018 ◽  
Vol 13 (4) ◽  
pp. 1934578X1801300
Author(s):  
Daniyar Sadyrbekov ◽  
Timur Saliev ◽  
Yuri Gatilov ◽  
Ivan Kulakov ◽  
Roza Seidakhmetova ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Spatial Structure ◽  
Bacterial Strains ◽  
Gram Negative ◽  
X Ray ◽  
Cyclopropane Derivative

A cyclopropane derivative of limonene, (1 S, 4 S, 6 R)-7,7-dichloro-4-[(1 S)-2,2-dichloro-1-methylcyclopropyl]-1-methylbicyclo [4.1.0] heptane (compound 2), was synthesized and its structure was determined by NMR and X-ray crystallographic methods. In addition, an antimicrobial activity of the compound against Gram-positive ( Staphylococcus aureus, Bacillus subtilis) and Gram-negative ( Escherichia coli, Pseudomonas aeruginosa) bacterial strains was also scrutinized.

scholarly journals (1S,2S)-Cyclohexane-1,2-diamine-based Organosilane Fibres as a Powerful Tool Against Pathogenic Bacteria

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 206 ◽  
Author(s):  
Veronika Máková ◽  
Barbora Holubová ◽  
David Tetour ◽  
Jiří Brus ◽  
Michal Řezanka ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Direct Contact ◽  
Pathogenic Bacteria ◽  
Bacterial Resistance ◽  
Positive Impact ◽  
Effective Means ◽  
Point Of View ◽  
Bacterial Strains ◽  
Covalent Bonds

An urgent need to find an effective solution to bacterial resistance is pushing worldwide research for highly effective means against this threat. Newly prepared hybrid organosilane fibres consisting of a (1S,2S)-cyclohexane-1,2-diamine derivative, interconnected in the fibre network via covalent bonds, were fully characterised via different techniques, including FTIR, TGA-FTIR, SEM-EDS, and solid-state NMR. Fibrous samples were successfully tested against two types of pathogenic bacterial strains, namely Staphylococcus aureus, and Pseudomonas aeruginosa. The obtained results, showing >99.9% inhibition against Staphylococcus aureus and Pseudomonas aeruginosa in direct contact compared to the control, may help particularly in case of infections, where there is an urgent need to treat the infection in direct contact. From this point of view, the above-mentioned fibrous material may find application in wound healing. Moreover, this new material has a positive impact on fibroblasts viability.

scholarly journals Assessment of anti bacterial screening of Pongamia pinnata stem against bacterial species: An In-vitro approach

2019 ◽  
Vol 9 (1-s) ◽  
pp. 181-184
Author(s):  
Adithya Gadeela Manish ◽  
Nerella Mounika ◽  
Bakshi Vasudha ◽  
Boggula Narender
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Medicinal Plants ◽  
Bacterial Species ◽  
Bacterial Activity ◽  
Pongamia Pinnata ◽  
Bacterial Strains ◽  
Agar Diffusion ◽  
Diffusion Technique

Numerous studies have shown that aromatic and medicinal plants are sources of diverse nutrient and non-nutrient molecules which protect the human body against various pathogens. Nature has been a source of medicinal agents for thousands of years and a large number of modern drugs have been isolated from natural sources. Herbal medicine is the oldest known healthcare system known to mankind. India has rich medicinal plants of nearly 7500 species. Many medicinal plants were with a long history of use in folk medicine against a variety of diseases. Recently, many researchers have taken a great interest on medicinal plants for their phytochemical constituents and biological activities including anti microbial activity. The anti bacterial activity of the ethanolic crude stem extract of Pongamia pinnata against four bacterial species (Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis and Escherichia coli) was investigated, using agar diffusion technique. At concentrations ranging from 10-40 mg/mL, the ethanolic crude extract showed activity against the four bacteria (Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis and E. coli) from 2 mm-20 mm, after 24 hours incubation. The present study showed the effectiveness of the crude plant extract against the tested bacterial strains and indicates the potential use of the extract as anti bacterial agent for the control of infectious diseases. Keywords:  Pongamia pinnata, anti bacterial activity, agar diffusion technique, bacterial strains, chloramphenicol.

Synthesis, Characterization and Antimicrobial Activity of Bis-Acetylferrocene Schiff Base

2011 ◽  
Vol 396-398 ◽  
pp. 1875-1878 ◽  
Author(s):  
Yu Ting Liu ◽  
Hai Long Guo ◽  
Da Wei Yin
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Salmonella Typhi ◽  
Bacterial Strains ◽  
Gram Negative ◽  
And Staphylococcus Aureus

Three bis-acetylferrocene schiff bases have been synthesized and characterized by IR, 1H NMR, and elemental analysis, the results conformed well with expected structures. The synthesized compounds were screened in vitro for their antimicrobial activity against three Gram-negative (Escherichia coli, Pseudomonas aeruginosa, and Salmonella typhi) and two Gram-positive (Bacillus subtilis and Staphylococcus aureus) bacterial strains. The results showed that these compounds are show excellent antimicrobia activities against Escherichia coli, Pseudomonas aeruginosa, Salmonella typhi ,Bacillus subtilis,Staphylococcus aureus.

Synthesis, characterization and antibacterial evaluation of novel benzothiazole clubbed acetamide derivatives

2021 ◽  
Vol 25 (7) ◽  
pp. 157-160
Author(s):  
Vikaskumar Shukla ◽  
Jayesh Jadhav ◽  
Maharshi Shukla ◽  
Jigar Patel ◽  
Jyotindra Mahyavanshi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Bacterial Strains ◽  
Gram Positive ◽  
Gram Negative ◽  
Benzothiazole Derivatives ◽  
Antibacterial Evaluation ◽  
Antibacterial Potential

A novel series of mercapto benzothiazole derivatives clubbed through acetamide linkage was designed and synthesized which was subjected to antibacterial evaluation using gram positive bacterial strains Staphylococcus aureus and Bacillus subtilis and Pseudomonas aeruginosa and Escherichia coli as gram negative strains. Some of the synthesized compounds showed their excellent antibacterial potential.

The Study of Bacillus Subtils Antimicrobial Activity on Some of the Pathological Isolates

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Hussein A Kadhum ◽  
Thualfakar H Hasan2
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Bacterial Growth ◽  
Broad Spectrum ◽  
Inhibitory Activity ◽  
Bacterial Pathogens ◽  
Inhibitory Ability ◽  
Selection Of

The study involved the selection of two isolates from Bacillus subtilis to investigate their inhibitory activity against some bacterial pathogens. B sub-bacteria were found to have a broad spectrum against test bacteria such as Staphylococcus aureus and Pseudomonas aeruginosa. They were about 23-30 mm and less against Klebsiella sp. The sensitivity of some antibodies was tested on the test samples. The results showed that the inhibitory ability of bacterial growth in the test samples using B. subtilis extract was more effective than the antibiotics used.

scholarly journals Staphylococcus aureus Serves as an Iron Source for Pseudomonas aeruginosa during In Vivo Coculture

2005 ◽  
Vol 187 (2) ◽  
pp. 554-566 ◽  
Author(s):  
Lauren M. Mashburn ◽  
Amy M. Jett ◽  
Darrin R. Akins ◽  
Marvin Whiteley
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Pathogenic Bacteria ◽  
Iron Acquisition ◽  
Low Oxygen ◽  
Dialysis Membrane ◽  
Opportunistic Human Pathogen ◽  
The Impact

ABSTRACT Pseudomonas aeruginosa is a gram-negative opportunistic human pathogen often infecting the lungs of individuals with the heritable disease cystic fibrosis and the peritoneum of individuals undergoing continuous ambulatory peritoneal dialysis. Often these infections are not caused by colonization with P. aeruginosa alone but instead by a consortium of pathogenic bacteria. Little is known about growth and persistence of P. aeruginosa in vivo, and less is known about the impact of coinfecting bacteria on P. aeruginosa pathogenesis and physiology. In this study, a rat dialysis membrane peritoneal model was used to evaluate the in vivo transcriptome of P. aeruginosa in monoculture and in coculture with Staphylococcus aureus. Monoculture results indicate that approximately 5% of all P. aeruginosa genes are differentially regulated during growth in vivo compared to in vitro controls. Included in this analysis are genes important for iron acquisition and growth in low-oxygen environments. The presence of S. aureus caused decreased transcription of P. aeruginosa iron-regulated genes during in vivo coculture, indicating that the presence of S. aureus increases usable iron for P. aeruginosa in this environment. We propose a model where P. aeruginosa lyses S. aureus and uses released iron for growth in low-iron environments.

scholarly journals The Relationship between Colonization by Moraxella catarrhalis and Tonsillar Hypertrophy

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Mirela C. M. Prates ◽  
Edwin Tamashiro ◽  
José L. Proenca-Modena ◽  
Miriã F. Criado ◽  
Tamara H. Saturno ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Streptococcus Pneumoniae ◽  
Haemophilus Influenzae ◽  
Moraxella Catarrhalis ◽  
Pathogenic Bacteria ◽  
Simultaneous Detection ◽  
Tonsillar Hypertrophy ◽  
Palatine Tonsils ◽  
Adenotonsillar Hypertrophy

We sought to investigate the prevalence of potentially pathogenic bacteria in secretions and tonsillar tissues of children with chronic adenotonsillitis hypertrophy compared to controls. Prospective case-control study comparing patients between 2 and 12 years old who underwent adenotonsillectomy due to chronic adenotonsillar hypertrophy to children without disease. We compared detection of Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcus aureus, Pseudomonas aeruginosa, and Moraxella catarrhalis by real-time PCR in palatine tonsils, adenoids, and nasopharyngeal washes obtained from 37 children with and 14 without adenotonsillar hypertrophy. We found high frequency (>50%) of Haemophilus influenzae, Streptococcus pneumoniae, Moraxella catarrhalis, and Pseudomonas aeruginosa in both groups of patients. Although different sampling sites can be infected with more than one bacterium and some bacteria can be detected in different tissues in the same patient, adenoids, palatine tonsils, and nasopharyngeal washes were not uniformly infected by the same bacteria. Adenoids and palatine tonsils of patients with severe adenotonsillar hypertrophy had higher rates of bacterial coinfection. There was good correlation of detection of Moraxella catarrhalis in different sampling sites in patients with more severe tonsillar hypertrophy, suggesting that Moraxella catarrhalis may be associated with the development of more severe hypertrophy, that inflammatory conditions favor colonization by this agent. Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Moraxella catarrhalis are frequently detected in palatine tonsils, adenoids, and nasopharyngeal washes in children. Simultaneous detection of Moraxella catarrhalis in adenoids, palatine tonsils, and nasopharyngeal washes was correlated with more severe tonsillar hypertrophy.

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