Zinc Oxide Nanoparticles Modulates the Production of β-Glucosidase and Protects its Functional State Under Alcoholic Condition in Saccharomyces cerevisiae

2014 ◽  
Vol 173 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Deependra Kumar Ban ◽  
Subhankar Paul
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Zinc Oxide ◽  
Functional State ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Optimisation of Zinc Oxide Nanoparticle Biosynthesis Using Saccharomyces Cerevisiae with Box-Behnken Design

2021 ◽  
Vol 72 (1) ◽  
pp. 79-89
Author(s):  
Fitry Mulyani ◽  
M. Diki Permana ◽  
Safri Ishmayana ◽  
Iman Rahayu ◽  
Diana Rakhmawaty Eddy
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Zinc Oxide ◽  
Incubation Time ◽  
Zinc Acetate ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Optimum Conditions ◽  
Box Behnken Design ◽  
Nanoparticle Biosynthesis ◽  
Oxide Nanoparticle

Zinc oxide nanoparticles have wide applications as catalysts, antimicrobial agents, drug delivery agents, etc. because of their intrinsic properties. Various methods can be applied to synthesise nanoparticles, one of which is the biosynthesis process. Biosynthesis is more eco-friendly than chemical and physical methods. In the present study, the optimisation of zinc oxide nanoparticle biosynthesis using the yeast Saccharomyces cerevisiae was performed by applying a response surface method called the Box�Behnken design (BBD). Three factors were optimised in the present study, namely the concentration of zinc acetate as the precursor (X1), concentration of the S. cerevisiae fermentation broth (X2), and the incubation time (X3). The mass of zinc oxide nanoparticles (Y) was recorded as the response of the experiment. The product was then characterised by fourier transform infrared spectroscopy (FTIR), X-Ray diffraction (XRD), scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), and particle size analyser (PSA). The optimum conditions for the preparation of zinc oxide nanoparticles were found to be 0.3 M, 100% (v/v), and 24 h as the zinc acetate concentration, medium concentration, and incubation time, respectively. The FTIR analysis showed peaks at ~600 cm−1, which is characteristic for ZnO stretching. From the XRD result, the ZnO nanoparticles with hexagonal structure was confirm. The SEM/EDS analysis confirmed that the morphology was spherical and showed the major energy emission for zinc and oxygen. Moreover, the PSA analysis revealed that the smallest size was 218.6 nm (12%) when the synthesis was performed at the optimum conditions, while when the incubation time was prolonged for 120 h, the size decreased to 134.2 nm.

Activity evaluation of pure and doped zinc oxide nanoparticles against bacterial pathogens and Saccharomyces cerevisiae

2019 ◽  
Vol 127 (5) ◽  
pp. 1391-1402 ◽  
Author(s):  
V. Zanet ◽  
J. Vidic ◽  
S. Auger ◽  
P. Vizzini ◽  
G. Lippe ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Bacterial Pathogens ◽  
Oxide Nanoparticles ◽  
Activity Evaluation

Optical Characteristics of Zinc Oxide Nanoparticles with Surface Modification Using Polyethylene Glycol

2014 ◽  
Vol 29 (10) ◽  
pp. 1039
Author(s):  
TAN Man-Lin ◽  
WANG Yan-Tao ◽  
ZHANG Wei-Li ◽  
FU Dong-Ju ◽  
LI Dong-Shuang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Surface Modification ◽  
Polyethylene Glycol ◽  
Zinc Oxide Nanoparticles ◽  
Optical Characteristics ◽  
Oxide Nanoparticles

A comparative study of the antibacterial activity of Quercus robur (Ethanolic extract) and Zinc oxide nanoparticles on Salmonella (In vitro)

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hams H. H. Alfattli ◽  
Ghufran Zuhair Jiber ◽  
Ghaidaa Gatea Abbass
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Oxide Nanoparticles ◽  
Quercus Robur ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Significant Inhibition ◽  
Oxide Nanoparticles ◽  
Inhibition Zones

This study which designed to evaluate the inhibitory effect of Ethanolic extract of (Quercusrobur) and Zinc oxide nanoparticles on the growth of one genus of enterobacteriacae (Salmonella). In vitro. For this purpose graduate concentrates for plant extract (50, 100, 200, 400 )mg/ml which prepared and compared with Zinc oxide nanoparticles of different concentration (2, 1, 0.5, 0.25) μg/ml,and examined. The result showed that the studied medicinal plant has antibacterial activity against this bacteria which used. The result showed that the plant has good activity in decrease the growth of this bacteria. The results of the study also showed that the nano-ZnO has very effective antibacterial action against the studied bacteria which was Salmonella,nanoparticles concentrations lead to increasing in the inhibition zones of tested bacterial growth. We also study the effect of three antibiotics Lomefloxacin (LOM), Ciprofloxacin (SIP) and Rifampin (RA) and the result showed,in a comparison within the tested bacteria,Salmonella had a significant inhibition increase in Lomefloxacin ; the ciprofloxacin showed effect on tested bacteria. However,Rifampin does not show any effect on tested bacteria.

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