Fak. 3 Prozesswissenschaften

1138 Items

Recent Submissions
Conditioning fixed-bed filters with fine fractions of granulated iron hydroxide (µGFH)

Hilbrandt, Inga ; Ruhl, Aki S. ; Jekel, Martin (2018-09-25)

The fine fraction of granular ferric hydroxide (µGFH, <0.3 mm) is a promising adsorbent for the removal of heavy metals and phosphate, but properties of µGFH were hitherto not known. The present study aimed at characterizing µGFH regarding its physical and chemical properties and at evaluating methods for the conditioning of fixed-bed filters in order to develop a process that combines filtrati...

The Changes in the Lipid Composition of Mung Bean Seeds as Affected by Processing Methods

Abdel-Rahman, El-Sayed Ali ; El-Fishawy, Fawzy A. ; El-Geddawy, Mohamed A. ; Kurz, Tomas ; El-Rify, Mohamed N. (2007)

This study was conducted to assess in detail the possible effects of some technological processes such as soaking, germination, cooking, soaking + cooking, and germination + cooking on the lipid composition of mung bean seeds of Giza 1 variety. TLC analysis of mung bean lipids showed that the phospholipids and triglycerides recorded the highest percentage among lipid fractions (32.26 and 30.10%...

Simplified Kinetics and Colour Formation in Sucrose Solutions Based on A-Dicarbonyl Compounds

Smejkal, Quido ; Fiedler, Thorsten ; Kurz, Tomas ; Kroh, Lothar (2007)

Colour formation in technical and model sucrose solutions was investigated resulting in a novel kinetic approach of MAILLARD reaction during thermal processing of sugar solutions. Presented results describe new aspects of the non-enzymatic browning reaction (MAILLARD reaction). Two temperature depending pathways of colour formation were found. Both reaction mechanisms are based on the formation...

Experimentelle Analyse und Modellierung des Stofftransportes durch Kohlenstoffmembranen bei der Hochdruckgastrennung

Kruse, Nicolas (2018)

Obwohl die Gastrennung mit Kohlenstoffmembranen mittlerweile ein etabliertes Gebiet der Membranforschung darstellt und Kohlen-stoffmembranen generell geeignet für den Einsatz unter Hochdruckbedingungen sind, liegen bisher nur wenige Veröffentlichungen zur Untersuchung ihres Trennverhaltens oberhalb von 2 MPa vor. Auch die etablierten Stofftransportmodelle zur Beschreibung von porösen Membranen ...

Analysis of metabolic pathways controlling cAMP-regulated aquaporin-2 trafficking in renal principal cells

Schulz, Maike (2018)

One of the main effectors of the second messenger cyclic adenosine monophosphate (cAMP) is the ubiquitously expressed serine/threonine protein kinase, cAMP-dependent protein kinase (PKA). Binding of cAMP to the regulatory subunits of PKA results in a conformational change and the release of the catalytic subunits to phosphorylate nearby targets. To ensure spatially and temporally controlled pho...

The Sustainable Child Development Index (SCDI)

Chang, Ya-Ju (2018)

Children and sustainable development are mutually supporting to each other. However, children are not widely addressed in existing sustainability assessments. The disregard of children in sustainability assessments can lead to incomplete evaluation of sustainable development. In addition, current children related studies have not yet considered topics with regard to sustainable development with...

Entwicklung und Validierung eines Prüfverfahrens zur Bestimmung der Radon-222-Exhalationsrate aus Bauprodukten in VOC-Emissionsprüfkammern

Hofmann, Michael (2018)

This doctoral thesis describes the development and validation of a practical test procedure for the determination of the radon-222 exhalation rate from building materials under simulated indoor conditions. To ensure practical relevance, the test procedure is based on standardised and validated methods for the determination of emission of volatile organic compounds (VOC) from materials in emissi...

Optimization of cell-laden bioinks for 3D bioprinting and efficient infection with influenza A virus

Berg, Johanna ; Hiller, Thomas ; Kissner, Maya S. ; Qazi, Taimoor H. ; Duda, Georg N. ; Hocke, Andreas C. ; Hippenstiel, Stefan ; Elomaa, Laura ; Weinhart, Marie ; Fahrenson, Christoph ; Kurreck, Jens (2018-09-17)

Bioprinting is a new technology, which arranges cells with high spatial resolution, but its potential to create models for viral infection studies has not yet been fully realized. The present study describes the optimization of a bioink composition for extrusion printing. The bioinks were biophysically characterized by rheological and electron micrographic measurements. Hydrogels consisting of ...

Sequencing traces for plasmid pDR111

Giessmann, Robert T. (2018)

This data object contains the raw sequencing traces generated by Sanger dideoxy sequencing for the plasmid pDR111, a kind gift of David Z. Rudner.

Experimentelle und modellgestützte Charakterisierung von Adsorptionswärmeübertragern

Wittstadt, Ursula (2018)

Adsorptionsprozesse können zur Wärme- oder Kälteerzeugung genutzt werden. Dafür kommen thermisch angetriebene Wärmepumpen oder Kältemaschinen zum Einsatz. Zentrale Komponenten dieser Anlagen sind Wärmeübertrager, die mit einem Adsorptionsmaterial befüllt oder beschichtet sind. Da Wärme – und Stofftransport in solchen Adsorptionswärmeübertragern stark gekoppelt sind, ist die gezielte Entwicklung...

Exercise Increases the Plasma Antioxidant Capacity of Adolescent Athletes

Carlsohn, Anja ; Rohn, Sascha ; Bittmann, Frank ; Raila, Jens ; Mayer, Frank ; Schweigert, Florian (2008)

Background: The reactive oxygen species produced as a result of exercise might exceed an individual’s antioxidant defence system. Various endogenous antioxidants are elevated in adult athletes, resulting in an improved antioxidant capacity. However, little is known about antioxidant defence in adolescents. The purpose of this study was to examine presumed adaptations of antioxidant capacity in ...

An X-ray tomographic study of rechargeable Zn/MnO2 batteries

Osenberg, Markus ; Manke, Ingo ; Hilger, André ; Kardjilov, Nikolay ; Banhart, John (2018-08-21)

We present non-destructive and non-invasive in operando X-ray tomographic investigations of the charge and discharge behavior of rechargeable alkaline-manganese (RAM) batteries (Zn-MnO2 batteries). Changes in the three-dimensional structure of the zinc anode and the MnO2 cathode material after several charge/discharge cycles were analyzed. Battery discharge leads to a decrease in the zinc parti...

Development of recombinant oncolytic Coxsackievirus B3 for treatment of colorectal carcinoma

Hazini, Ahmet (2018)

Colorectal cancer is one of the most death related cancer type in worldwide. Conventional cancer therapeutics show curable effect only in the patients at early stage of the disease. In case of the diagnosis at late stages, the survival rate decreases dramatically up to 10%. Therefore, novel cancer therapeutics are urgently needed. Oncolytic virotherapy is a new treatment approach which exploits...

Rocking Aspergillus: morphology-controlled cultivation of Aspergillus niger in a wave-mixed bioreactor for the production of secondary metabolites

Kurt, Tutku ; Marbà-Ardébol, Anna-Maria ; Turan, Zeynep ; Neubauer, Peter ; Junne, Stefan ; Meyer, Vera (2018-08-21)

Background Filamentous fungi including Aspergillus niger are cell factories for the production of organic acids, proteins and bioactive compounds. Traditionally, stirred-tank reactors (STRs) are used to cultivate them under highly reproducible conditions ensuring optimum oxygen uptake and high growth rates. However, agitation via mechanical stirring causes high shear forces, thus affecting fun...

The effects of fermentation and enzymatic treatment of pea on nutrient digestibility and growth performance of broilers

Goodarzi Boroojeni, Farsgad ; Senz, M. ; Kozłowski, K. ; Boros, D. ; Wisniewska, M. ; Rose, D. ; Männer, K. ; Zentek, J. (2017)

The present study examined the impacts of native, fermented or enzymatically treated peas (Pisum sativum L.) inclusion in broiler diets, on growth performance and nutrient digestibility. For the fermentation process, Madonna pea was mixed with water (1/1) containing 2.57×108 Bacillus subtilis (GalliPro®) spores/kg pea and then, incubated for 48 h at 30 °C. For the enzymatic treatment process, t...

Analysing impacts on biodiversity within the framework of life cycle assessment

Winter, Lisa (2018)

The flora, fauna and their surrounding ecosystems on earth are drastically decreasing since the era of industrialisation. Currently, the extinction rate of species is measured to be between 0.01% and 0.1% per year and is expected to increase in the future. This decline of life on earth is influencing human well-being because humans are dependent on the services ecosystems provide. In order to c...

In vivo-Analyse der B-Zell-Rezeptor-Signaltransduktion im Keimzentrum

Ulbricht, Carolin (2018)

Unser Immunsystem stellt uns eine Vielzahl von Effektormechanismen zur Verfügung, die für den lebenslangen Schutz vor Krankheitserregern sorgen. Ein Aspekt dieser Mechanismen ist die Produktion von Immunglobulin-Antikörpern durch langlebige Plasmazellen, die aus B-Zellen in Keimzentren der sekundären lymphatischen Organe stammen. Innerhalb der Keimzentren bilden B-Zellen, T-Zellen und follikulä...

Reconstruction of the lantibiotic ruminococcin-A biosynthesis machinery in Escherichia coli and structural characterization

Ongey, Elvis Legala (2018)

Lanthipeptides are a group of therapeutically relevant proteinaceous compounds predominantly produced by Gram-positive bacteria at the ribosomal level, containing thioether cross-linked amino acids called lanthionine as a characteristic structural element. Lanthipeptides are attracting growing interests stemming from their wide range of bioactivities including antimicrobial, antiviral and antic...

Analyse der Mikrostrukturentwicklung von CuInSe2 mittels in-situ Röntgenbeugung

Stange, Anna Helena (2018)

Die Reduzierung der Absorberschichtdicke auf wenige Mikrometer eröffnet neue Anwendungsmöglichkeiten für die Photovoltaik. Der Verbindungshalbleiter Cu(In,Ga)Se2 (CIGSe) hat sich als besonders geeignet für solche Dünnschichtsolarzellen herausgestellt. Mit CIGSe-Absorbern aus einem mehrstufigen Syntheseprozess werden die bisher höchsten Effizienzen im Bereich der Dünnschichttechnologie erreicht....

The effects of mixing syrups from beet and cane origin on sugar quality

Schlumbach, Karl (2018)

With the decision of the EU market liberalization, the European sugar manufacturers are forced to optimize their process management and to increase factory utilization. The co-production of beet thick juice and raw cane sugar is a promising opportunity to increase the period of operation in factory processing sugar beets. Both raw materials comprise impurities (e.g. colorants) with different ph...