Investigation of extracellular protease activity of two different extremely halophilic archaea isolated from raw hide

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dc.contributor.authorKesbiç, Fevziye Işil
dc.contributor.authorYapici, Binnur Meriçli
dc.date.accessioned2025-01-27T18:59:03Z
dc.date.available2025-01-27T18:59:03Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, it was aimed to investigate extracellular protease activity of two different extremely halophilic archaea and to identify them by using phenotypic and molecular methods. The haloarchaea were isolated from salted raw hide. The isolates were screened for production of protease enzyme and two isolates which have extracellular protease activity were selected. To identify the halophilic archaea, Gram staining procedure, antibiotic sensitivity tests and molecular methods were used. According to the 16S r-RNA molecular identifi cation results, isolate 1 identifi ed as Halococcus morrhuae JCM 8876 with ti99 sequence similarities and isolate 2 identifi ed as Natrinema pallidum 153 with %99 sequence similarities. Azocasein was used as a substrate for measuring their proteases activities daily and their optimum activities were determined. H. morrhuae and N. pallidum showed daily maximum proteases activity on 6 and 4 days, respectively. According to the results of the study, it was found that proteases activity was related with different reaction conditions. These conditions were detected as different pH (4-11), temperature (4-70°C) and NaCl concentration (1-5 M) values. H. morrhuae showed the maximum activity at pH 9.5, 2M NaCl concentration and 50°C temperature and N. pallidum displayed the optimum activity at pH 9.0, 2M NaCl concentration and 40°C temperature. © 2017 by the author(s).
dc.identifier.doi10.24264/lfj.17.4.9
dc.identifier.endpage262
dc.identifier.issn1583-4433
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85038897221
dc.identifier.scopusqualityQ4
dc.identifier.startpage255
dc.identifier.urihttps://doi.org/10.24264/lfj.17.4.9
dc.identifier.urihttps://hdl.handle.net/20.500.12428/13134
dc.identifier.volume17
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherINCDTP: Division Leather Footwear Research Institute
dc.relation.ispartofLeather and Footwear Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20250125
dc.subject16S r-RNA sequence analysis; Extracellular protease enzyme; Haloarchaea; Salted hide
dc.titleInvestigation of extracellular protease activity of two different extremely halophilic archaea isolated from raw hide
dc.typeArticle

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