Mine Güngörmüşler

İzmir University of Economics · Department of Genetics and Bioengineering

In recent years, the development of feed ingredients with natural additives has gained significant importance in increasing the health and quality of animal products, as well as in promoting weight gain in animals. Since Salmonella infection is a significant disease that transmits from animals to humans, the inhibition of Salmonella species can be...

Environmental pollution is a big challenge that has been faced by humans in contemporary life. In this context, fossil fuel, cement production, and plastic waste pose a direct threat to the environment and biodiversity. One of the prominent solutions is the use of renewable sources, and different organisms to valorize wastes into green energy and b...

The microbial community composition of five distinct thermophilic hot springs was effectively described in this work, using broad-coverage nanopore sequencing (ONT MinION sequencer). By examining environmental samples from the same source, but from locations with different temperatures, bioinformatic analysis revealed dramatic changes in microbial...

Bu çalışmada, ulaşım sektörünün CO2 emisyonu oluşumuna yüksek katkısı nedeniyle, petrol türevi yakıtların yenilenebilir ve sürdürülebilir alternatiflerle ikame edilmesinin en iyi senaryosuna yönelik bir değerlendirme, ikinci nesil biyoetanolün kullanımının önerildiği çoklu bir yaklaşımla değerlendirilmiştir. Bu bağlamda, bu makale, belirtilen dört...

Since the exploration of sequencing began in 2005, third and next-generation sequencing (TGS and NGS) technologies have fundamentally changed metagenomics research. These platforms provide essential benefits regarding speed, cost, quality and precision in the never-ending search for microorganisms’ genetic material, regardless of location on earth....

Commercial pickled cucumbers are produced in variety of salt concentrations including brines up to 15% sodium chloride due to the preventive nature of the salt towards microbial growth. Although it is deemed necessary for manufacturers to utilize high amounts of salts to prolong shelf life, the high content creates a burden for the growth of benefi...

Air pollution is a topic of important global concern because it has contributed significantly to an increase in the earth's global warming potential and contributed to severe health and environmental impacts. In this review, the different bioreactor configurations commonly used for waste gas treatment, namely the biofilters, the biotrickling filter...

Probiotics are living organisms that have beneficial effects on host by regulating the microbial balance of the intestinal system. While probiotics are naturally found in yogurt and other fermented foods, they can also be added to many products. Although mostly in dairy products, it is possible to see examples of food products supplemented by probi...

Assessment of the environmental impacts of food products that are produced and consumed in large amounts globally is crucial to promote sustainability. The main objective of this study was to assess the environmental impact of two brined vegetables through life cycle assessment. Six different impacts were calculated. The analysis of both products,...

Biological hydrogen (H2) is a promising candidate for production of renewable hydrogen. Using entrapped cells rather than conventional suspended cell cultures for the production of H2 offers several advantages, such as improved production yields related to higher cell density, and enhanced resistance to substrate and end-product inhibition. In this...

As being a rapidly developing area, the production of nondairy-based functional beverages continues to accelerate considerably. In the present study, the probiotification of a mixture of the juices of Jerusalem artichoke, pineapple, pumpkin, spinach, and cucumber has been utilized for the development of probiotic fruit-vegetable juice. Lactic acid...

The present paper reports the results of Citrobacter freundii, strain DSM 15979, that was tested for its ability to produce value added chemicals from biodiesel derived glycerol in a mesophilic fluidized bed biofilm reactor operating under continuous conditions at a specified hydraulic retention time (HRT) at 30°C. Elevating feed concentrations (10...

A gluten‐free pasta formulation was developed by buckwheat supplemented with two different gluten‐free flours (chickpea and teff) and a natural thickener (xanthan gum). A statistical experimental design was used in three levels and protein values were enhanced with the supplementation of tested flours. The optimum formulation was determined via a m...

Biodiesel production, in which glycerol is produced as a by-product, has increased significantly and now vast amounts of glycerol have been considered as a waste product. Biotechnological conversion of glycerol into a valuable bioplastic raw material, namely, 1,3-propanediol (1,3-PDO) seems to be very promising. In this study, locally isolated Kleb...

Cell and enzyme immobilization are often used for industrial production of high-value products. In recent years, immobilization techniques have been applied to the production of value-added chemicals such as 1,3-Propanediol (1,3-PDO). Biotechnological fermentation is an attractive alternative to current 1,3-PDO production methods, which are primari...

Higher initial glycerol loadings (620 mM) have a negative effect on growth and 1,3-propanediol (1,3-PDO) synthesis in Clostridium butyricum DSM 10702 relative to lower initial glycerol concentrations (170 mM). To help understand metabolic shifts associated with elevated glycerol, protein expression levels were quantified by LC/MS/MS analyses. Thirt...

Among the economically viable and ecologically acceptable solutions for the safe disposal of waste glycerol coming from biodiesel production, the biotechnological conversion of glycerol into a very high-value-added bioplastic raw material, namely 1,3 propanediol (1,3-PDO) seems to be very promising. This process is easy and environmentally friendly...

Immobilized cultures of locally isolated Klebsiella pneumoniae (GenBank no: 27F HM063413) were employed in the continuous production of the high value added biomonomer, 1,3-propanediol from waste glycerol. The effect of hydraulic retention time (HRT) was tested by increasing the dilution rate gradually. Three different immobilization materials (sta...

In this study, pumice stone (PS), which is a vastly available material in Turkey, was evaluated as an alternative immobilization material in comparison to other commercially available immobilization materials such as glass beads and polyurethane foam. All immobilized bioreactors resulted in much better 1,3-propanediol production from waste glycerol...

Glycerol is the main by-product of transesterification of fats in the biodiesel production. 1,3-Propanediol (1,3-PDO) is a valuable chemical that can be obtained from glycerol by microbial conversion. A number of Enterobacteriaceae species are able to produce 1,3-PDO from glycerol in stirred tank freely suspended cell bioreactors. Little is known a...

The fermentative production of 1,3-propanediol (1,3-PDO) by Klebsiella pneumoniae under different initial substrate concentrations (between 5 and 110g/L) was investigated. It was found that glycerol was almost 100% utilized and 1,3-PDO production increased up to 20g/L of influent substrate concentration, but there was a significant decrease in both...

The feasibility of the continuous production of a valuable bioplastic raw material, namely 1,3-propanediol (1,3-PDO) from biodiesel by-product glycerol, using immobilized cells was investigated. In addition, the effect of hydraulic retention time (HRT) was also analysed. Ceramic balls and ceramic rings were used for the immobilization of a locally...

The continuous production of 1,3-propanediol (1,3-PDO) was investigated with Clostridium beijerinckii NRRL B-593 using raw glycerol without purification obtained from a biodiesel production process. Ceramic rings and pumice stones were used for cell immobilization in a packed-bed bioreactor. For comparison purpose, a control bioreactor with suspend...

Klebsiella species are excellent 1,3-propanediol (1,3 PDO) producers. Klebsiella pneumoniae is a well-studied microorganism and, therefore, its metabolic pathway is known. Accordingly, a number of by-products are simultaneously produced together with 1,3 PDO. Optimization of medium composition significantly decreased these byproducts' concentration...