scholarly journals Antimicrobial activity of the leaf extract and fractions of Lupinus arboreus

2014 ◽  
Vol 8 (8) ◽  
pp. 386-391 ◽  
Author(s):  
S. C. Ohadoma ◽  
I. Nnatuanya ◽  
L. U. Amazu ◽  
C. E. Okolo
Keyword(s):  
Antimicrobial Activity ◽  
Leaf Extract ◽  
Lupinus Arboreus

Green Synthesis of Silver Nanoparticles by Allamanda cathartica L. Leaf Extract and Evaluation for Antimicrobial Activity

2013 ◽  
Vol 6 (4) ◽  
pp. 2260-2268
Author(s):  
M. Linga Rao ◽  
Bhumi G ◽  
Savithramma N
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Fusarium Species ◽  
Inhibition Zone ◽  
Fungal Species ◽  
Green Technology ◽  
Metallic Silver ◽  
Synthesis Of Nanoparticles ◽  
Aqueous Leaf Extract

Silver nanoparticles (SNPs) exhibit tremendous applications in medicine as antimicrobial agent.  The use of different parts of plants for the synthesis of nanoparticles is considered as a green technology as it does not involve any harmful chemicals.  In the present study, we report a rapid biosynthesis of silver nanoparticles from aqueous leaf extract of medicinal plant Allamanda cathartica.  The active phytochemicals present in the plant were responsible for the quick reduction of silver ion to metallic silver nanoparticles. The reduced silver nanoparticles were characterized by using UV-Vis spectrophotometry, Scanning Electron Microscope (SEM), Energy Dispersive Analysis of X-ray (EDAX) and Atomic Force Microscopy (AFM).  The spherical shaped silver nanoparticles were observed and it was found to 19-40 nm range of size.  These phytosynthesized SNPs were tested for their antimicrobial activity and it analyzed by measuring the inhibitory zone. A. cathartica aqueous leaf extract of SNPs showed highest toxicity to Pseudomonas followed by Klebsiella, Bacillus and E. coli and lowest toxicity towards Proteus. In fungal species, highest inhibition zone was noted against Rhizopus followed by Curvularia, Aspergillus flavus and Aspergillus niger and minimum inhibition zone was observed against Fusarium species.  These results suggest a promising potential of Indian plant-based green chemistry for production of SNPs for biomedical and nanotechnology applications.

scholarly journals Biogenic synthesis, characterization and antimicrobial activity of Ixora brachypoda (DC) leaf extract mediated silver nanoparticles

2020 ◽  
pp. 101296
Author(s):  
Meghashyama Bhat ◽  
Bidhayak Chakraborty ◽  
Raju Suresh Kumar ◽  
Abdulrahman I. Almansour ◽  
Natarajan Arumugam ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Biogenic Synthesis

scholarly journals Synthesis of Gold Nanoparticles Using Leaf Extract of Ziziphus zizyphus and their Antimicrobial Activity

Nanomaterials ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 174 ◽  
Author(s):  
Alaa Aljabali ◽  
Yazan Akkam ◽  
Mazhar Al Zoubi ◽  
Khalid Al-Batayneh ◽  
Bahaa Al-Trad ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Gold Nanoparticles ◽  
Leaf Extract

Biosynthesis of silver nanoparticles using Ocimum sanctum (Tulsi) leaf extract and screening its antimicrobial activity

2011 ◽  
Vol 13 (7) ◽  
pp. 2981-2988 ◽  
Author(s):  
Garima Singhal ◽  
Riju Bhavesh ◽  
Kunal Kasariya ◽  
Ashish Ranjan Sharma ◽  
Rajendra Pal Singh
Keyword(s):  
Antimicrobial Activity ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Ocimum Sanctum

scholarly journals Phytochemical Screening and Antimicrobial Activity of Chromolaena odorata Leaf Extract against Selected Microorganisms

2017 ◽  
Vol 13 (4) ◽  
pp. 1-9 ◽  
Author(s):  
Foluke Odutayo ◽  
Cajethan Ezeamagu ◽  
Taofikat Kabiawu ◽  
Daniel Aina ◽  
Grace Mensah-Agyei
Keyword(s):  
Antimicrobial Activity ◽  
Leaf Extract ◽  
Phytochemical Screening ◽  
Chromolaena Odorata

scholarly journals Macrophytes as a potential tool for crop production by providing nutrient as well as protection against common phyto pathogen

2021 ◽  
pp. bs202103
Author(s):  
Yachana Jha
Keyword(s):  
Antimicrobial Activity ◽  
Crop Production ◽  
Leaf Extract ◽  
Agricultural Practices ◽  
Control Agent ◽  
Mineral Nutrient ◽  
High Concentration ◽  
Maize Crop ◽  
Agar Disc ◽  
Chemical Inputs

Applications of synthetic chemical fertilizers and pesticides lead to several environmental hazards, causing damages to entire ecosystem. To reduce damage caused by such chemical inputs in agriculture and environment required a serious attention for replacement of chemicals input with eco-friendly options. In this study decaying macrophytes were selected as an option for organic agriculture, by analyzing its ability to provide important mineral nutrient to the maize crop grown in low nutrient soil as well as for providing resistant towards many common phyto-pathogens to enhance yield. The results of the study showed that decaying macrophytes have high concentration of stored important mineral nutrient in their body mass, which get released in the soil during its decay and to be used by the maize plant. The decaying macrophytes leaf extract have considerable amount of phenolic and flavonoids also having antimicrobial activity. The antimicrobial activity of the leaf extract has been analyzed against the common phyto-pathogen Pseudomonas aeruginosa , and S. aureus by agar disc method and the formation of clear zone indicate its potential as bio-control agent. So under intensive agricultural practices, application of such biological waste is of particular importance for enhancing soil fertility without chemical input, to ensure sustainable agriculture.

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