| Yazarlar |
Öğr. Gör. Dr. Fevziye Işıl KESBİÇ
Kastamonu Üniversitesi, Türkiye |
Binnur Meriçli Yapıcı
Çanakkale Onsekiz Mart Üniversitesi, Türkiye |
| Özet |
| In 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. |
| Anahtar Kelimeler |
| 16S r-RNA sequence analysis | Extracellular protease enzyme | Haloarchaea | Salted hide |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | Uluslararası alan indekslerindeki dergilerde yayımlanan tam makale |
| Dergi Adı | Leather and Footwear Journal |
| Dergi ISSN | 1583-4433 |
| Dergi Tarandığı Indeksler | CABI, SCOBUS, EBSCO |
| Makale Dili | İngilizce |
| Basım Tarihi | 12-2017 |
| Cilt No | 17 |
| Sayı | 4 |
| Sayfalar | 255 / 262 |
| Doi Numarası | 10.24264/l .17.4.9 |
| Makale Linki | http://revistapielarieincaltaminte.ro/revistapielarieincaltaminte/ |
| Atıf Sayıları | |
| SCOPUS | 1 |
