Green synthesis of iron nanoparticles using Moringa oleifera extracts and their applications: Removal of nitrate from water and antibacterial activity against Escherichia coli

2018 ◽  
Vol 256 ◽  
pp. 296-304 ◽  
Author(s):  
Lebogang Katata-Seru ◽  
Tshepiso Moremedi ◽  
Oluwole Samuel Aremu ◽  
Indra Bahadur
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Moringa Oleifera ◽  
Iron Nanoparticles

scholarly journals Green Synthesis of Silver Nanoparticles Using Moringa Oleifera Leaf Extract, Tamarindus Indica Fruit Extract and Assessement of Antibacterial Activity Against Staphylococcus Aureus

2021 ◽  
Author(s):  
Shirisha A ◽  
ANUMOLU VIJAYA KUMAR ◽  
Laxman Chatlod R ◽  
Shashi Kumar M ◽  
Krishnaiah N ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Silver Nitrate ◽  
Leaf Extract ◽  
Moringa Oleifera ◽  
Diffusion Method ◽  
Tamarindus Indica ◽  
Fruit Extract

Abstract The present study mainly deals with the green synthesis, characterization and evaluation of antibacterial properties of silver nanoparticles (AgNPs) synthesized by using the leaf extract of Moringa oleifera and fruit extract of Tamarindus indica. In this study for synthesis of silver nanoparticles different ratios of 1mM silver nitrate and Moringa oleifera leaf extract i.e, 95:5, 90:10 and 85: 15 was taken in conical flask and kept for one 1 hr at 25 0 c on magnetic stirrer, out of which 90:10 ratio was selected for further study based on highest peak, good size and stability. Tamarindus indica fruit extract was added to silver nitrate solution till the colour of the solution changes from light brown to chocolate brownish colour. The synthesized silver nanoparticles were characterized by UV-Visible spectroscopy, Zeta potential, size distribution by intensity. The absorption spectrum of the silver nano solution prepared by using Moringa oleifera and Tamarindus indica fruit extract showed a surface plasmon absorption band with maximum of 420 nm and 430 nm respectively indicating the presence of silver nanoparticles. The zeta value of silver nanoparticles synthesized from Moringa oleifera and Tamarindus indica fruit extract was -12.5 mV and -15.5 mV, size of 110.2 nm and 130.2 nm respectively. The antibacterial efficacy of nanosilver was checked by agar well diffusion method, and the silver nanoparticles showed effective antibacterial activity against Staphylococcus aureus.

scholarly journals Aktivitas Antibakteri Ekstrak Metanol dari Kulit Batang Kelor (Moringa oleifera Lam.) Terhadap Bakteri Staphylococcus aureus dan Escherichia coli

KOVALEN ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 34-38
Author(s):  
Nurul Cholifah ◽  
Ahmad Ridhay ◽  
Pasjan Satrimafitrah ◽  
Ruslan ◽  
Hardi Ys
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Moringa Oleifera ◽  
Methanol Extract ◽  
Inhibition Zone ◽  
Stem Bark ◽  
Diffusion Method ◽  
Bark Extract ◽  
Moringa Oleifera Lam

Antibacterial activity of Moringa oleifera Lam. stem bark has been tested against Staphylococcus aureus and Escherichia coli. The extraction of Moringa oleifera Lam. stem bark was used maceration method with methanol solvent and has obtained extract yield of 6.1%. The antibacterial activity test of Moringa oleifera stem bark extracts used a well diffusion method. The concentration of Moringa oleifera stem bark extract was varied to four concentrations of 1% 2% 3% 4% (w/v). The inhibition zone of methanol extract of Moringa oleifera stem bark against Staphylococcus aureus at extract concentrations of 1%, 2%, 3%, and 4% was 10.08 mm, 11.8 mm, 15.00 mm, and 17.02 mm, respectively. The methanol extract of Moringa oleifera stem bark at concentrations of 1%, 2%, 3%, and 4% could also inhibition of Escherichia coli growth with inhibition zone of 14.01 mm, 16.50 mm, 17.09 mm, and 17.10 mm, respectively. Keywords: Moringa Oleifera Lam., Antibacterial, Staphylococcus aureus, Escherichia coli

scholarly journals Antibacterial Activity of Green Synthesis of Iron Nanoparticles UsingLawsonia inermisandGardenia jasminoidesLeaves Extract

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Tayyaba Naseem ◽  
Muhammad Akhyar Farrukh
Keyword(s):  
Electron Microscopy ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Metal Nanoparticles ◽  
Metallic Nanoparticles ◽  
Iron Nanoparticles ◽  
Conventional Heating ◽  
Diffusion Method ◽  
Gravimetric Analysis ◽  
Lawsonia Inermis

Recently, development of reliable experimental protocols for synthesis of metal nanoparticles with desired morphologies and sizes has become a major focus of researchers. Green synthesis of metallic nanoparticles has accumulated an ultimate interest over the last decade due to their distinctive properties that make them applicable in various fields of science and technology. Metal nanoparticles that are synthesized by using plants have emerged as nontoxic and ecofriendly. In this study a very cheap and simple conventional heating method was used to obtain the iron nanoparticles (FeNPs) using the leaves extract ofLawsonia inermisandGardenia jasminoidesplant. The iron nanoparticles were characterized by thermal gravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray diffraction (XRD). The antibacterial activity was studied againstEscherichia coli,Salmonella enterica,Proteus mirabilis, andStaphylococcus aureusby using well-diffusion method.

scholarly journals A Green Synthesis and Antibacterial Activity of N-Arylsulfonylhydrazone Compounds

2019 ◽  
Vol 25 (1) ◽  
pp. 152-156 ◽  
Author(s):  
Qian Yang ◽  
Wangwang Hao ◽  
Yangqing He ◽  
Qian Zhang ◽  
Xiaojiao Yu ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
High Activity ◽  
Antibacterial Activities ◽  
High Yield ◽  
Green Method ◽  
Aryl Aldehydes

AbstractA green method has been developed for the synthesis of N-arylsulfonylhydrazones via a simple grindstone procedure. By grinding mixtures of benzensulfonyl hydrazides and a series of aryl aldehydes or ketones in the mortar using L-tyrosine as catalyst, 24 N-arylsulfonylhydrazones were synthesized in a few minutes with high yield. All compounds were screened for their antibacterial activities. Most of them exhibit some antibacterial activities especially for 3d, 3l and 3v showing high activity against Staphylococcus aureus and Escherichia coli.

scholarly journals Green synthesis of MgO nanoparticles using Moringa oleifera leaf aqueous extract for antibacterial activity

2021 ◽  
Vol 35 (1) ◽  
pp. 161-170
Author(s):  
A. Fatiqin ◽  
H. Amrulloh ◽  
W. Simanjuntak
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Moringa Oleifera ◽  
X Ray Diffraction ◽  
Mgo Nanoparticles ◽  
Alternative Method ◽  
Leaf Aqueous Extract ◽  
Vis Spectroscopy ◽  
Escherchia Coli

Nanoparticle fabrication using plant extracts is an important alternative method because it is non-toxic, biocompatible, and environmentally friendly. In this study, green synthesis of MgO nanoparticles using Moringa oleifera leaf water extracts was conducted by mixing the extract and a solution of magnesium chloride. The product was characterized using different techniques, i.e. UV-Visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The UV-Vis spectrum of MgO nanoparticles shows an absorption at 280 nm. The size of the synthesized MgO nanoparticles ranges from 20-50 nm. The antibacterial activity of MgO nanoparticles was seen from the zone of inhibition against Staphylococcus aureus (6.3 mm) and against Escherichia coli (6 mm). MgO nanoparticles have been successfully fabricated using Moringa oleifera leaf aqueous extracts, providing an alternative method for synthesizing MgO nanoparticles.                     KEY WORDS: Antibacterial activity, Escherchia coli, MgO nanoparticles, Moringa oleifera, Staphylococcus aureus   Bull. Chem. Soc. Ethiop. 2021, 35(1), 161-170. DOI: https://dx.doi.org/10.4314/bcse.v35i1.14

scholarly journals Nutritional Assessment and Biological Activity of Moringa oleifera

2021 ◽  
Vol 64 (1) ◽  
pp. 1-6
Author(s):  
Abdul Hameed Lanjwani ◽  
Allah Bux Ghanghro ◽  
Taj Muhammad Jahangir Khuhawar ◽  
Muhammad Farooque Lanjwani
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Moringa Oleifera ◽  
Nutritional Assessment ◽  
Inhibition Zone ◽  
New Drugs ◽  
Appreciable Amount ◽  
Klebsiella Pneumonia ◽  
Antibacterial Protein ◽  
Different Types

Moringa oleifera medicinal plant is used for medicinal purposes for the treatment of different types of human diseases. The fresh roots, stems, leaves, flowers and seeds have been selected for such medicinal purposes. The findings of present study indicated that an appreciable amount of proximate composition and phytochemical had been confirmed. The leaves and seeds for this study showed significant phytochemical sources including phenolic compound, flavonoid, tannin alkaloid and antioxidant content, whereas the most sensitive minerals composition sources including Ca, Fe, Mg, Na, K, antibacterial activity including the Escherichia coli, Bacillus cereus and Staphylococcus aurous were found to be the most sensitive, while Klebsiella pneumonia least sensitive in this study. The growth of Escherichia coli is mostly inhibited by all plants components. Whereas, flowers and leaves showed good inhibition zone against Escherichia coli. The flowers of Maringa oleifera possessed antibacterial protein and peptide which showed highly significant against Staphylococcus aurous, Escherichia coli, Klebsiella pneumonia, Pseudomonas, proteus and enterobacter. The research will be supported for nutrition and sources of new drugs for the treatment of the different types of diseases.    

scholarly journals Biologically synthesized iron nanoparticles (FeNPs) from Phoenix dactylifera have anti-bacterial activities

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Faryal Batool ◽  
Muhammad Shahid Iqbal ◽  
Salah-Ud-Din Khan ◽  
Javed Khan ◽  
Bilal Ahmed ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Green Synthesis ◽  
Iron Nanoparticles ◽  
Antimicrobial Agents ◽  
Phoenix Dactylifera ◽  
Iron Sulfate ◽  
Visible Spectroscopy ◽  
Sulfate Heptahydrate ◽  
Uv Visible

AbstractNanotechnology is a vast field of science with the most vibrant and conspicuous applications. The green synthesis approach is cost-effective, eco-friendly, and produces the most stable metal-based nanoparticles without the use of toxic chemicals. This study presents the green synthesis of iron nanoparticles (FeNPs). For biosynthesis of FeNPs, Phoenix dactylifera extract was used as a reducing agent and iron sulfate heptahydrate (FeSO4·7H2O) was used as a substrate. FeNPs were characterized by different techniques including UV–Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), and nano zeta-sizer analysis. The antimicrobial activity of FeNPs synthesized by using an aqueous extract of Phoenix dactylifera was evaluated against Escherichia coli, Bacillus subtilis, Micrococcus leutus, and Klebsiella pneumoniae. A notable color change from yellow to black confirmed the synthesis of FeNPs. The sharp peak at 450 nm UV–Visible spectroscopy confirmed the synthesis of FeNPs. FTIR showed the presence of O–H and C=C stretching due to the presence of phenol and alkene functional groups. The average size of FeNPs was 6092 d.nm. The results of antimicrobial activity showed that FeNPs exhibit different potential against different bacterial strains with a maximum 25 ± 0.360 zone of inhibition against Escherichia coli. Thus, green synthesized FeNPs could be used as potential antimicrobial agents.

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