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ELAL MUŞ, TÜLAY

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ELAL MUŞ

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TÜLAY

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2015 - 201922020 - 20211
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    Publication
    The effect of orally administrated β-glucan and dietary restriction on faecal microflora in rats
    (Kafkas Üniversitesi, 2015-01-01) Elal Muş, Tülay; Ak Sonat, Füsun; ELAL MUŞ, TÜLAY; SONAT, FÜSUN; Veteriner Fakültesi; Gıda Hijyeni ve Teknolojisi Ana Bilim Dalı; 0000-0002-3943-0097; AAG-8396-2021; K-1637-2017; AAW-5282-2020
    In this study we aimed to evaluate the effect of orally administered beta-glucan and/or dietary restriction on Lactobacillus spp., coliforms, Enterobacteriaceae and enterococci counts in rat faeces. For this aim, rats were divided into three experimental groups: i) first group animals received normal diet for 6 months and administrated orally with beta-glucan (20 mg/kg for bodyweigth) over the last 14 day of experiment, ii) second group was dietary restricted animals for 6 months and receiving beta-glucan as those of first group animals, iii) last group was the control group rats receiving only ad libitum feed. Compared to control group, numeric increase was observed in the number of coliforms, Enterobacriaceae and lactobacillus counts in first group but this was not statistically important. The increase in coliforms and Enterobacteriaceae counts was nearly 2 log while this was 1 log for lactobacillus counts. Interestingly, dietary restriction + beta-glucan administration had no significant influence on the increase of defined bacterial groups. The results of the present study showed that orally administration of the beta-glucan, widely used as prebiotic, has the potential to modify faeces microbiota in rat model.
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    Isolation of Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus from nature: Technological characterisation and antibiotic resistance
    (Czech Academy Agricultural Sciences, 2021-01-01) Tavsanli, Hakan; Muş, Tülay Elal; Çetinkaya, Figen; Ayanoğlu, Ergün; Çıbık, Recep; ELAL MUŞ, TÜLAY; ÇETİNKAYA, FİGEN; AYANOĞLU, ERGÜN; ÇIBIK, RECEP; Veteriner Fakültesi; Gıda İşleme Bölümü; 0000-0002-3943-0097; K-1637-2017; AAW-5282-2020; CIP-6922-2022; CEH-2176-2022; CJW-9519-2022
    Yoghurt fermenting bacteria were isolated from natural sources including plants, dew, and rain samples (total of 300 samples) by the same methods nomadic peoples used for several centuries in Turkey. Inoculation into the reconstituted skim milk followed by planting on specific media and matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF MS) analysis allowed for the identification of 18 Lactobacillus delbrueckii subsp. and 26 Streptococcus thermophilus. A multiplex polymerase chain reaction (PCR) assay applied to lactobacilli enabled the identification of 5 isolates as L. delbrueckii subsp. bulgaricus. The isolates showed a varying range of acidification rates and proteolytic activity in reconstituted skimmed milk (RSM). S. thermophilus isolates showed a broader range of resistance and the most frequent resistance was observed for streptomycin (69.2%), gentamycin (65.3%), clindamycin (61.5%), ampicillin (61.5%), kanamycin (53.8%), and erythromycin (50%). For L. delbrueckii subsp. the highest resistance was determined for vancomycin (38.8%), ciprofloxacin (33.3%), and penicillin (27.8%). The frequency of multiple resistance was tested on 14 different antimicrobials determining that 19 S. thermophilus (73%) and 3 L. delbrueckii subsp. (16.7%) demonstrated resistance to more than three different antibiotics. In contrast to this wide-ranging resistance, five isolates from each genus were found to be susceptible to all tested antibiotics. The present study indicates that lactic acid bacteria (LAB) isolated from nature may have broad-range of resistance to antibiotics and could be a source for the transfer of resistance.
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    Publication
    Effect of dietary restriction on probiotic bacteria lactobacillus
    (Wiley, 2015-09-01) Muş, Tülay Elal; Sonat, Füsun Ak; Altınbaş, Burin; ELAL MUŞ, TÜLAY; SONAT, FÜSUN; Altınbaş, Burin; Keles Meslek Yüksekokulu; Gıda Teknolojisi Programı; 0000-0002-3943-0097; AAG-8396-2021; AAW-5282-2020; K-1637-2017