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Yayın Biodegradation of microplastic by probiotic bifidobacterium(Inderscience Enterprises Ltd, 2022) Bozkurt, Hüseyin Sancar; Yoruklu, Hulya Civelek; Bozkurt, Kutsal; Denktas, Cenk; Bozdogan, Altan; Özdemir, Orhan; Özkaya, BestamiA growing accumulation of microplastics has become a severe environmental and health issue. Scientific reports on biodegradation of microplastics by microorganisms have sprung up, and these offer a possibility to develop different microbial biodegradation approaches for microplastics. Bifidobacterium infantis is a probiotic commensal heterotrophic anaeorobic bacterium that regulates the intestinal microbiota. In this study, we have comprehensively analysed the probiotic Bifidobacterium infantis microorganism and that is able to degrade polypropylene, which is generally used as synthetic plastic in various atmospheric conditions. Microplastic biodegradation of probiotic bifidobacterium occurs in an aerobic environment and FTIR spectrum of biofilm structure result provides that probiotic bifidobacterium uses polypropylene as an energy and carbon source. The microbial biofilm structure that emerges as a result of biodegradation is a bio-based compound that prevents the growth of pathogenic bacteria. The probiotic bifidobacterial biodegradation of microplastics, which is a global environmental problem threatening human health, is promising.Yayın Development and characterization of sodium alginate/bifidobacterium probiotic biohybrid material used in tissue engineering(Wiley, 2022) Denktaş, Cenk; Baysoy, Derya Yılmaz; Bozdogan, Altan; Bozkurt, Hüseyin Sancar; Bozkurt, Kutsal; Özdemir, Orhan; Yılmaz, MehmetMechanical properties are crucial for biodegradable and/or non-biodegradable materials used in tissue engineering applications. In this study, bio-hybrid films were produced by using both Bifidobacterium animalis subsp. lactis BB-12 probiotic strain and Bifidobacterium infantis in combination with sodium alginate (SA), which demonstrates biocompatibility and facilitated gelation properties. Bio-hybrid films were characterized by using different methods. Based on the spectroscopic and mechanical analysis, it was found that mechanical strength increased in films produced by adding Bifidobacterium infantis in SA while this increase was relatively lower as compared to those containing Bifidobacterium animalis subsp. lactis BB-12 as cross-linking ratio increases. Besides, bacteria contained in bio-hybrid films increased the percentage of amorphous zone of SA in SA/bacteria films, which reduced the crystallinity ratio. This indicated that crystalline chains contained in the structure of SA are degraded by bacteria.