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dc.contributor.authorWebster, Samantha Jayde
dc.contributor.authorWright, Mitchell Henry
dc.contributor.authorGreene, Anthony Carlson
dc.contributor.authorCock, Ian Edwin
dc.date.accessioned2021-06-02T05:38:14Z
dc.date.available2021-06-02T05:38:14Z
dc.date.issued2017
dc.identifier.issn2249-0159
dc.identifier.doi10.5530/pc.2017.2.10
dc.identifier.urihttp://hdl.handle.net/10072/404866
dc.description.abstractIntroduction: Shewanella spp. are a major cause of fish spoilage. Terminalia spp. have a long history of medicinal uses, including being used to treat bacterial infections. Despite their well-established antibacterial properties, the Indian Terminalia spp. have not been tested for the ability to inhibit the growth of fish spoilage bacteria. Methods: Solvent extracts were prepared using Indian Terminalia spp. known to inhibit microbial growth. The growth inhibitory activity of the extracts was investigated by disc diffusion assay against four Shewanella spp. environmental isolates. Their MIC values were calculated to quantify and compare their relative efficacies. Toxicity was determined using the Artemia franciscana nauplii bioassay. Results: Extracts prepared from several Indian a. displayed potent antibacterial activity in the disc diffusion assay against the environmental Shewanella spp. isolates. The methanolic T. chebula fruit extract was particularly effective at inhibiting Shewanella spp. growth, with MIC values of 198, 329, 162 and 176 μg/mL against S. putrefaciens, S. baltica, S. frigidimarina and S. loihica respectively. The T. chebula fruit ethyl acetate and T. catappa fruit methanolic extracts were similarly potent, with MIC values generally substantially <1000 μg/mL against all Shewanella spp. In contrast, the T. catappa bark and all T. arjuna extracts were only moderate growth inhibitors (MIC values 1000-5000 μg/mL). All other extracts were either inactive or of only low growth inhibitory activity. All the extracts were nontoxic, with all recorded LC50 values substantially >1000 μg/mL. Conclusions: The potent growth inhibitory activity of the methanolic and ethyl acetate T. chebula fruit extracts against all Shewanella spp. indicates their potential in the prevention of fish spoilage. Furthermore, the lack of toxicity of these extracts indicates their suitability for use as natural fish preservatives.
dc.description.peerreviewedYes
dc.publisherEManuscript Services
dc.relation.ispartofpagefrom66
dc.relation.ispartofpageto75
dc.relation.ispartofissue2
dc.relation.ispartofjournalPharmacognosy Communications
dc.relation.ispartofvolume7
dc.subject.fieldofresearchPlant Biology
dc.subject.fieldofresearchPharmacology and Pharmaceutical Sciences
dc.subject.fieldofresearchcode0607
dc.subject.fieldofresearchcode1115
dc.titleNatural Methods for Preventing Fish Spoilage Using Indian Terminalia spp. Extracts: Growth Inhibition of Shewanella spp.
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWebster, SJ; Wright, MH; Greene, AC; Cock, IE, Natural Methods for Preventing Fish Spoilage Using Indian Terminalia spp. Extracts: Growth Inhibition of Shewanella spp., Pharmacognosy Communications, 2017, 7 (2), pp. 66-75
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated2021-06-02T01:23:06Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2017. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND 4.0) License (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorCock, Ian E.
gro.griffith.authorGreene, Tony C.
gro.griffith.authorWright, Mitchell H.
gro.griffith.authorWebster, Samantha J.


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