Tarımsal atık ve nano-yapılı yarı-iletken bazlı, antimikrobik, biyobozunur filmlerin üretilmesi ve karakterizasyonu

Bakır, Ufuk
Karakaş, Gürkan


Co-production of xylanase and itaconic acid by aspergillus terreus nrrl 1960 on agricultural biomass and biochemical characterization of xylanase
Kocabaş, Aytaç; Bakır, Ufuk; Department of Biotechnology (2010)
Production of xylanase and itaconic acid (IA) from Aspergillus terreus NRRL 1960 from agricultural residues was investigated in this study. Two different media were tested and the medium having itaconic acid inducing capacity was chosen for further studies due to its high xylanase and IA production capacity. The best xylan concentration was found as 2% (w/v). Addition of commercial xylanase to production culture resulted in higher initial simple sugar concentration which increased IA production slightly but...
Three dimensional (3D) printing of bio-polymers from agricultural wastes
Bahçegül, Eylül Gökçe; Özkan, Necati; Şengönül, Cemal Merih; Department of Polymer Science and Technology (2022-8-8)
Lignocellulosic biomass, which is a composite structure made up of cellulose, hemicellulose and lignin biopolymers, is the most abundant biopolymer resource on earth. Among the biopolymers found in lignocellulosic agricultural wastes, hemicellulose and lignin receive significantly less attention compared to cellulose for material applications despite the fact that these two biopolymers constitute almost a half of a given biomass. In this context, three novel strategies were developed that render hemicellu...
Tarımsal atıklardan elde edilen hemiselüloz temelli biyopolimerlerden ekstrüzyon vasıtası ile filmlerin üretilmesi
Bölükbaşı, Ufuk; Özkan, Necati; Bahçegül, Erinç; Akınalan, Büşra; Erdemir, Duygu(2014)
Majority of materials used in daily life are produced by using petroleum based polymers. However sustainability of such production processes is problematic when it is considered that petroleum is not a renewable resource in addition to the environmental pollution caused by petroleum based products. Currently, biopolymers are more frequently utilized as an alternative to petroleum based polymers. Due to their low cost because of the waste status and abundance, lignocellulosic agricultural wastes are among th...
Preparation of antimicrobial films from agricultural biomass
Seber, Ayşe Gizem; Bakır, Ufuk; Department of Biotechnology (2010)
Mainly used food packaging materials are petro-chemical based polymers which present environmental problems since they are not biodegradable and ecologically sustainable. In this study, biodegradable biofilms are produced from xylan, extracted from cotton stalk which is an agricultural biowaste without nutritional value. Antimicrobial property was given to the biofilms with either titanium dioxide sol-gel coatings or titanium dioxide powder addition into the biofilm forming solutions. The antimicrobial acti...
Isolation of antimicrobial molecules from agricultural biomass and utilization in xylan-based biodegradable films
Çekmez, Umut; Bakır, Ufuk; Department of Biotechnology (2010)
Cotton stalk lignin extractions were performed via alkaline methods at different conditions. Crude and post treated cotton stalk lignins, olive mill wastewater and garlic stalk juice were examined in terms of antimicrobial activity. Antimicrobial lignin was isolated depending on alkaline extraction conditions. Lignin extracted at 60°C exhibited significant antimicrobial effect towards both Escherichia coli and Bacillus pumilus. However different post treatments such as ultrasonication and TiO2-assisted phot...
Citation Formats
U. Bakır and G. Karakaş, “Tarımsal atık ve nano-yapılı yarı-iletken bazlı, antimikrobik, biyobozunur filmlerin üretilmesi ve karakterizasyonu,” 2010. Accessed: 00, 2020. [Online]. Available: https://app.trdizin.gov.tr/publication/project/detail/TVRFd09UZzQ.