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
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Creator |
Visnuvinayagam, S.
Murthy, L.N. Jeyakumari, A. Parvathy, U. Sivaraman, G. K. |
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Subject |
Not Available
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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. Not Available |
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Date |
2019-11-25T08:40:55Z
2019-11-25T08:40:55Z 2017-11-21 |
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Type |
Other
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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 |
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Language |
English
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Relation |
Not Available;
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Publisher |
ICAR-Central Institute of Fisheries Technology, Kochi and Asian Fisheries Society, Indian Branch
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