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Öztaş Gülmüş, Ebru

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Profile URL
https://hdl.handle.net/20.500.14901/1284
Name Variants
Öztaş Gülmüş, E
Gülmüs, EÖ
Gulmus, EO
Job Title
Dr. Öğr.Üyesi
Email Address
ebru.oztas@erzurum.edu.tr
Main Affiliation
2.1. Moleküler Biyoloji ve Genetik Bölümü
Status
Website
https://erzurum.edu.tr/personel/426/ebru-oztas#gsc.tab=0
ORCID ID
0000-0003-4772-8288
Scopus Author ID
57211453527
Turkish CoHE Profile ID
246012
Google Scholar ID
gpnkFgsAAAAJ&hl
WoS Researcher ID
KLZ-6452-2024

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Scholarly Output

2

Articles

2

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Now showing 1 - 2 of 2
  • Thumbnail Image
    Article
    Characterization and Biotechnological Application of Protease from Thermophilic Thermomonas Haemolytica
    (Springer Heidelberg, 2020) Oztas Gulmus, Ebru; Gormez, Arzu
    In this study, it was aimed to determine the ability to produce protease enzyme of Thermomonas haemolytica isolated from geothermal Nenehatun hot spring in Turkey and utilization of this enzyme in the detergent industry to remove protein stains. The protease-producing strains were screened from hot springs, and a potential strain was identified as T. haemolytica according to morphological, physiological and biochemical characteristics and sequence of 16S rRNA gene. Maximum protease activity was observed at 55 degrees C and pH 9.0 at 72 h of incubation. Activity was very stable between 50 and 65 degrees C and pH 8.0-10.0, respectively. The enzyme activity was significantly inhibited by PMSF and partly inhibited by EDTA, EGTA, SDS, and urea. Some divalent metal ions such as Ca2+, Mg2+, and Mn2+ increased the enzyme activity, while Zn2+ and Cu2+ decreased. Michaelis-Menten constant (K-m) and maximum velocity (V-max) values were calculated by Lineweaver-Burk plot as 125 EU/ml and 1262 mg/ml, respectively. The biochemical characterization of the protease obtained from T. haemolytica was performed and applied on the blood and grass-stained fabrics with detergent to evaluate the stain removal performance of the enzyme. It was observed that the application of detergent with enzyme was more effective than the detergent without enzyme to clean up the stained fabrics. This is the first report of characterization of the protease of T. haemolytica. According to results obtained from this study, this new strain is a promising candidate for industrial applications in production of detergent.
  • Thumbnail Image
    Article
    Identification and Characterization of Novel Thermophilic Bacteria from Hot Springs, Erzurum, Turkey
    (Springer, 2020) Oztas Gulmus, Ebru; Gormez, Arzu
    The aim of present study was the isolation and characterization of thermophilic bacteria from three different hot springs in Erzurum, Turkey. For this purpose, 85 bacteria were isolated and characterized by ERIC-PCR genomic fingerprinting and classical identification methods such as morphological, physiological and biochemical characteristics. According to the results, 29 bacterial isolates with different band profiles were analyzed by 16S rRNA gene sequencing and identified as belonging to the genus of Bacillus, Pseudomonas, Silanimonas, Thermomonas and Thauera. This is the first report on the isolation of Silanimonas lenta, Thauera sp. and Thermomonas haemolytica from Turkey Hot Springs. The amylase, lipase and protease enzyme production potentials of the isolates were 80%, 91.25% and 81.25%, respectively. Moreover, 56.47% of the isolates (48) were able to produce all of these enzymes. Therefore, the results of the study indicated that these bacteria and their enzymes can be used as a source of industrial enzymes.