Antibacterial Effects of Silver Nanoparticles Produced by Satureja hortensis Extract on Isolated Bacillus cereus from Soil of Sistan Plain

Shirmohammadi, Ebrahim; Saeidi, Saeide; Mohasseli, Taher; Boogar, A. Rahimian

doi:10.17795/iji-21944

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…Earlier study exhibited significant antibacterial activity against Klebsiella pneumonia, Bacillus subtilis, P. aeruginosa and Salmonella paratyphi. [18] Also an ecofriendly approach for synthesis of AgNPs by using Morus nigra leaves extract was reported earlier. …”

Section: Discussionmentioning

confidence: 94%

Antibacterial Activity of Biosynthesized Silver Nanoparticles From Viola Serpens Against Multi Drug Resistant Strains of Staphylococcus Aureus and Pseudomonas Aeruginosa

Kumar¹

2017

WJPR

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Section: Discussionmentioning

confidence: 94%

Antibacterial Activity of Biosynthesized Silver Nanoparticles From Viola Serpens Against Multi Drug Resistant Strains of Staphylococcus Aureus and Pseudomonas Aeruginosa

Kumar¹

2017

WJPR

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“…The optimum temperature for the growth of B. cereus is between 30 and 35°C but it can grow at temperatures up to 48°C or under 7°C. D100 of the spore forms of B. cereus is 2.2 to 5.4 minutes that indicates their high resistance to heat (2,3). The enterotoxins of this bacterium can produce two types of the food-poisoning syndrome: diarrhea (diarrheal type) and nauseous type (emetic type) (4,5).…”

Section: Introductionmentioning

confidence: 99%

Molecular Detection of Metallo-β-lactamase Genes blaIMP, blaVim,‎ ‎and blaSPM-1‎ in Bacillus cereus Strains Isolated from Infant Milk Powder Samples

Ghazaei

2019

Int J Infect

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Background: Infant milk powder (IMP) is a very suitable medium for the growth of micro-organisms such as Bacillus cereus. B. cereus is a spore-producer that can survive easily during the pasteurization process to cause some health problems. Objectives: This study was carried out to determine the antibiotic resistance pattern of B. cereus isolates producing metallo-βlactamase (MBL) enzymes in IMP samples. Methods: After preparing 50 samples of IMP, they were cultured to detect the presence of B. cereus. The Kirby-Bauer method was used to determine antibiotic susceptibility and the DDST method to phenotypically detect MBL enzymes. MBL genes blaVIM, blaSMP-1, and blaIMP were genotypically examined in the isolates by the PCR method. Results: Most samples of IMP had a high level of contamination with B. cereus when compared to national and international standards. The highest percentage of resistance was related to ceftazidime and oxacillin (100%) and the lowest resistance to tetracycline (21.4%) and ciprofloxacin (26.3%). All B. cereus isolates were the producers of MBL in the DDST test. None of the isolates was positive for the blaSPM gene. Of the other MBL genes, the blaVIM gene was seen in all isolates (100%) and the blaIMP gene in 16 isolates (84.21%). Conclusions: Antibiotic resistance is on the rise in the study region due to the production of MBL enzymes. Among MBL-producing isolates, the frequency of the blaVIM gene was more than that of blaIMP and blaSPM-1.

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“…Medicinal plants with antibacterial effects do not have any major side effects on human health and are also inexpensive. During the last 40 years, many researchers in the world worked on plants to find new antibiotics which were clinically effective against drug sensitive-and drug-resistant bacteria (1)(2)(3)(4)(5)(6). One of these plants which is important in traditional medicine in Sistan region (southeast of Iran) is Portulaca oleracea.…”

Section: Introductionmentioning

confidence: 99%

“…In many parts of the world including southern countries of Asia, this plant is used as a green vegetable (5). Other biological properties include antiinflammation, muscle relaxation and fever suppression (6). P. oleracea is a rich source of omega-3 fatty acids and can prevent heart attacks and improve the immune system in human (7).…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activities of the Hydroalcoholic Extract of Portulaca oleracea Leaves and Seeds in Sistan Region, Southeastern Iran

2015

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Background: Many efforts have been made by researchers to find new antibiotics which are clinically useful against bacteria and drug resistant microorganisms. Objectives: We aimed to evaluate the antimicrobial effects of hydroalcoholic extracts of leaves and seeds of the Portulaca oleracea plant in traditional medicine of Sistan region, southeast of Iran. Materials and Methods:In this cross-sectional and descriptive study, from January 2010 to January 2012, we studied the antibacterial activity of P. oleracea extract using nine bacteria (Gram-positive and Gram-negative bacterial strains) which were resistant to standard antibiotics such as erythromycin, cefixime, ceftazidime, tetracycline, ampicillin and amikacin. Bacterial strains were obtained from a standard laboratory. Broth microdilution method was used to determine the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Results: The hydroalcoholic extract of P. oleracea L. leave and seed had antibacterial effects on selected drug resistant bacterial strains. Conclusions:The leaves and seeds extract of P. oleracea has a remarkable antibacterial effect and it can be a good alternative when we are faced with drug resistance bacteria. However, more studies are required.

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Antibacterial Effects of Silver Nanoparticles Produced by Satureja hortensis Extract on Isolated Bacillus cereus from Soil of Sistan Plain

Cited by 4 publications

References 18 publications

Antibacterial Activity of Biosynthesized Silver Nanoparticles From Viola Serpens Against Multi Drug Resistant Strains of Staphylococcus Aureus and Pseudomonas Aeruginosa

Antibacterial Activity of Biosynthesized Silver Nanoparticles From Viola Serpens Against Multi Drug Resistant Strains of Staphylococcus Aureus and Pseudomonas Aeruginosa

Molecular Detection of Metallo-β-lactamase Genes blaIMP, blaVim,‎ ‎and blaSPM-1‎ in Bacillus cereus Strains Isolated from Infant Milk Powder Samples

Antibacterial Activities of the Hydroalcoholic Extract of Portulaca oleracea Leaves and Seeds in Sistan Region, Southeastern Iran

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