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Comparative in- vitro studies on antimicrobial activity of bulk and nanozinc oxide incorporated chitosan

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Title Comparative in- vitro studies on antimicrobial activity of bulk and nanozinc oxide incorporated chitosan
Not Available
 
Creator Visnuvinayagam, S.
Murthy, L.N.
Jeyakumari, A.
Parvathy, U.
Sivaraman, G. K.
 
Subject Not Available
 
Description Not Available
NnO-Nano particle is known for its antimicrobial property but as it is not food grade, it has limitations in seafood application. However, ZnO-Bulk particle is a GRAS (Generally Recognized As Safe) listed substance and hence can be added in the food as a supplement (CFRNo.182.8991). However, no previous literature is available on the antimicrobial property exhibited by ZnO-BP. Hence, the present study was carried out to exploit the antimicrobial activity of ZnO-BP incorporated chitosan and its comparison with ZnO-NP incorporated chitosan. ZnO-NP was prepared by Solgel method and the size was confirmed by the UV-Visible spectrometer
and scanning electron microscope. The activity of the BP and NP was assessed by minimum inhibitory concentration and minimum bactericidal concentration. Similarly, the activity of the ZnO-NP incorporated
chitosan and ZnO-BP incorporated chitosan was assessed by antibiogram with various food borne pathogenic and specific spoilage organisms in fish. The results indicated that ZnO-BP-CH was equally effective to ZnO-NP-CH against most of the bacteria. Both ZnO-BP-CH and ZnO-NP-CH exhibited higher inhibition zone i.e., 10 - 15 mm than chitosan alone. Among the SSOs, Pseudomonas was found highly susceptible. The order of susceptibility of the SSOS against ZnO-BP-CH and ZnO-NP-CH were as follows: Pseudomonas greater than H2S formers greater than Mould greater than B. thermosphacta greater than Lactobacillus greater than
Yeast. Hence, the present study concluded that ZnO-BP-CH can be used as a suitable antimicrobial agent in seafoods for their shelf stability.
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Date 2019-11-25T08:40:55Z
2019-11-25T08:40:55Z
2017-11-21
 
Type Other
 
Identifier Visnuvinayagam, S.,Murthy, L.N.,Jeyakumari, A.,Parvathy, U. and Sivaraman, G. K. (2017) Comparative in- vitro studies on antimicrobial activity of bulk and nanozinc oxide incorporated chitosan. In: (Thomas, S.N., Rao, B.M., Madhu, V.R., Asha, K.K., Binsi, P.K., Viji, P., Sajesh, V.K. and Jha, P.N., Eds.) Fostering Innovations in Fisheries and Aquaculture: Focus on Sustainability and Safety – Book of Abstracts, 11th Indian Fisheries and Aquaculture Forum, ICAR-Central Institute of Fisheries Technology, Kochi and Asian Fisheries Society, Indian Branch, 21-24 November, 2017, Kochi, India, pp. 389-390.
978-81-933623-1-0
http://krishi.icar.gov.in/jspui/handle/123456789/25326
 
Language English
 
Relation Not Available;
 
Publisher ICAR-Central Institute of Fisheries Technology, Kochi and Asian Fisheries Society, Indian Branch