In situ synthesis of silver nanoparticles into TEMPO-mediated oxidized bacterial cellulose and their antivibriocidal activity against shrimp pathogens
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Date
2017
Journal Title
Journal ISSN
Volume Title
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Abstract
Vibrionaceae is bifolded drug resistant emerging pathogens, active in various aquaculture sectors especially in shrimp culture around the world. V. parahaemolyticus are most dreadful viral outbreaks to shrimp
culture. During the last decade the shrimp production level has been increased and also accompanied with
various diseases. In the present research bacterial cellulose (BC) membrane produced by Gluconacetobacter xylinus in cell suspension. Further, TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical) oxidation
was done to activate carboxyl group subsequently, TEMPO oxidized BC immersed in AgNO3 solution to
generate AgNP anchored with BC to increase vibriocidal activity. Investigation of pure BC, TEMPO-BC and
AgNP deposited BC was done by scanning electron microscopy (SEM), energy-dispersive spectroscopy
(EDS) and X-ray diffraction (XRD). Further vibriocidal effect was observed against the pathogen V. parahaemolyticus and V. harveyi. We found AgNP-BC more effective as compare pure BC, TEMP-BC, and AgNO3.
Therefore AgNP deposited BC, is promising alternative to control the shrimp pathogen.
Description
Subject(s)
Gluconacetobacter xylinum, Bacterial cellulose, Silver nanoparticles, Shrimp pathogens, Antivibriocidal activity
Citation
ISSN
0144-8617