Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Book Part Citation - Scopus: 5Potential of Bacterial Cellulose for Sustainable Cities: a Review and Bibliometric Analysis on Bacterial Cellulose(Springer International Publishing, 2023) Kale, İ.; K, I, Rdök, O.; Bilgi, E.; Akyol-Altun, T.D.; Tokuç, A.; Köktürk, G.; Özkaban, F.This book chapter focuses on bacterial cellulose (BC), with many recent contemporary studies, an explanation of BC producers and synthesis mechanisms, and a summary of their production methods. Few studies are directly related to sustainability with BC, a promising biomaterial for different solutions due to its properties. Thus, a comprehensive review of BC and research trends in this area are evaluated by bibliometric analysis. The distribution of publications by years, influential countries, organizations, journals, authors, citation analysis, distribution of publications by scientific disciplines, keyword analysis, and research focuses are emphasized. Scientific publications were taken from the WoS database, and graphics were created with the “VOSviewer” and “Carrot2” programs. According to the analysis, studies on BC started in 1980, but studies on sustainability were found in 2005 and later. It has also been observed that studies on BC in materials science have increased significantly in 2016 and beyond. Finally, bacterial cellulose has been discussed in line with the UN’s Sustainable Development Goals. Therefore it can be said that there is a potential for use in the textile, architecture, and food packaging sectors, and more detailed research is still needed. As a result, the dissemination of BC-related studies in these areas has great potential for a completely sustainable production method. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.Article Citation - WoS: 19Citation - Scopus: 21Bacterial Cellulose Based Facial Mask With Antioxidant Property and High Moisturizing Capacity(Springer, 2021) Bilgi, Eyüp; Homan Gökçe, Evren; Bayır, Ece; Şendemir, Aylin; Özgen Özer, Kevser; Hames Tuna, Elif EsinBacterial cellulose (BC) produced by certain bacteria has the potential to be used in many different areas. Despite its advantageous properties compared to plant cellulose, such as high purity, mechanical strength, nanofiber mesh structure, and high-water holding capacity, its production through a biotechnological process prevents it from competing with plant counterparts in terms of cost-effectiveness. Therefore, studies have focused on the development of culture media with cost-effective BC production methods and the production of high value-added products from BC. In this study, it was aimed to develop a taurine-loaded moisturizing facial mask with antioxidant properties based on BC's high-water retention and chemical retention capacity. BC facial mask samples were characterized by Scanning Electron Microscopy (SEM) imaging, Fourier Transform Infrared (FTIR) Spectroscopy, Differential Scanning Calorimetry (DSC), Liquid Chromatography-Mass spectrometry (LC-MS), microbial and mechanical stability tests, as well as cytotoxicity tests. According to our results, produced facial mask samples did not show any cytotoxic effect on human keratinocyte (HS2) or mouse fibroblast (L-929) cell lines; it has high thermal stability, which makes it suitable for different sterilization techniques including sterilization by heat treatment. Taurine release (over 2 mu g/mL in 5 min) and microbial stability tests (no bacterial growth observed) of packaged products kept at 40 and 25 degrees C for 6 months have shown that the product preserves its characteristics for a long time. In conclusion bacterial cellulose-based facial masks are suitable for use as a facial mask, and they can be used for moisturizing and antioxidant properties by means of taurine.Article Citation - WoS: 71Citation - Scopus: 76Characterization of Bacterial Cellulose Nanocrystals: Effect of Acid Treatments and Neutralization(Elsevier Ltd., 2021) Arserim-Uçar, Dilhun Keriman; Korel, Figen; Liu, LinShu; Yam, Kit LIn this study, bacterial cellulose nanocrystals (BCNCs) were obtained from bacterial cellulose nanofibers (BCNFs) by controlled hydrolysis of sulfuric and hydrochloric acids. The influence of hydrolysis temperature and acid type with the addition of the post-treatment step was studied. The obtained BCNCs were analyzed based on the structural characterization and the properties of the nanocrystals. The BCNCs crystallinity increased, and the size of nanocrystals decreased with increasing 10 °C hydrolysis temperature for both acid hydrolysis conditions. Hydrolysis conditions with neutralization post-treatment did not alter the thermal stability of nanocrystals, and BCNCs had high thermal stability like raw BCNFs. Elemental analysis results indicated that sulfur content (S %) was very low for sulfuric acid hydrolyzed samples, and X-ray results did not show any sulfate salt peaks. Thermal stable BCNCs with high crystallinity were successfully produced to meet the process requirements in various applications, especially in the food industry.