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Browsing Medical School by Author "Acar, Elif Esma"
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Article A metagenomic survey of bacterial communities from kurut: The fermented cow milk in Kyrgyzstan(Chemistry and Biodiversity, 2024-02) Yeğin, Zeynep; Mamatova, Zhanylbubu; Yurt, Mediha Nur Zafer; Taşbaşi, Behiye Büşra; Acar, Elif Esma; Uçak, Samet; Süleymanoğlu, Ali Anil; Aydın, Ali; Özalp, Veli Cengiz; Sudağıdan, MertKurut is a traditional dry dairy product mostly consumed in Central Asia. In this study, the distribution of the dominant bacteria present in kurut samples (n=84) originated from seven (Chuy, Issyk-Kul, Talas, Naryn, Jalal-Abad, Osh, and Batken) regions in Kyrgyzstan were analyzed with Illumina iSeq100 platform. The dominant phylum detected was Firmicutes followed by Proteobacteria, Actinobacteria, Cyanobacteria/Chloroplast, and Tenericutes. The most abundant family detected was Lactobacillaceae followed by Streptococcaceae, Enterococcaceae, Chloroplast, and Leuconostocaceae. At the genus level, Lactobacillus was the predominant one in samples and Streptococcus, Enterococcus, Lactococcus, and Streptophyta followed this. Further comprehensive characterization analyses in kurut samples may have potential applications both in industrial starter culture developments and also future therapeutic approaches based on potential strains with probiotic properties.Article Bacterial and fungal microbiota of mould-ripened cheese produced in Konya(International Journal of Dairy Technology, 2023-09-01) Yurt, Mediha Nur Zafer; Ömeroğlu, Esra Ersoy; Taşbaşı, Behiye Büşra; Acar, Elif Esma; Altunbaş, Osman; Özalp, Veli Cengiz; Sudağıdan, MertBacterial and fungal diversities of 24 mould-ripened cheeses originating from Konya-Türkiye were examined by metagenomic analysis. Firmicutes phylum, Enterococcus, Clostridium sensu stricto and Lactobacillus (Levilactobacillus) genera were the dominant bacteria. Ascomycota phylum and Penicillium and Pichia genera and Penicillium roqueforti and Pichia membranifaciens species were dominant fungi. Enterococcus faecium (n = 30) and Enterococcus faecalis (n = 6) were identified, and all strains were susceptible to penicillin, ampicillin, vancomycin, teicoplanin, chloramphenicol and linezolid. The highest resistance (n = 14) was against rifampin. Tetracycline resistance was determined in two strains. Biofilm-forming ability was found in nine E. faecium and 1 E. faecalis. E. faecium strains revealed 40–88.9%, and E. faecalis showed 59.2–100% homology by pulsed field gel electrophoresis.Article Determination of Bacterial Diversity of Propolis Microbiota(Chemistry and Biodiversity, 2023-03) Ersoy-Ömeroğlu, Esra; Arserim-Uçar, Dilhun Keriman; Yeğin, Zeynep; Çağlayan, Nevzat; Zafer-Yurt, Mediha Nur; Taşbaşı, Behiye Büşra; Acar, Elif Esma; Uçak, Samet; Özalp, Veli Cengiz; Sudağıdan, MertPropolis is a natural resinous mixture produced by the excretions of honeybees. PCR amplification of the 16S rRNA gene region was achieved using DNA of pre-enriched propolis samples collected from Apis mellifera production hives (n=37) in Eastern Türkiye (Bingöl and its regions). Next-generation sequencing and metabarcoding techniques were used to identify bacterial communities in propolis samples. Firmicutes dominated the phylum structure, with Proteobacteria, Actinobacteria, Tenericutes, and Spirochaetes following. The top three bacterial families were Bacillaceae, Enterobacteriaceae, and Enterococcaceae. Bacillus (dominantly B. badius and B. thermolactis at the species level) was recognized at the genus level, followed by Enterococcus and Clostridium sensu stricto. Our study comprehensively identified the bacterial diversity of propolis samples. Further investigations targeting to enlighten the microbiota of propolis and its potential application fields are required to gain better insight into ecological, nutritional, and medicinal perspectives.