Refine
Year of publication
Document Type
- Article (585)
- Patent (117)
- Book (65)
- Conference Proceeding (33)
- Part of a Book (21)
- Report (4)
- Doctoral Thesis (3)
- Preprint (1)
Language
- English (522)
- German (304)
- Multiple languages (2)
- Spanish (1)
Has Fulltext
- no (829) (remove)
Keywords
- Heparin (3)
- Chemometrics (2)
- IR spectroscopy (2)
- NMR spectroscopy (2)
- Principal component analysis (2)
- Standardization (2)
- (R)- or (S)- gamma-valerolactone (1)
- 4-hydroxy valeric acid (1)
- Alginate beads (1)
- Analytics (1)
- Authenticity (1)
- Bioeconomy (1)
- Bioethanol (1)
- Biomass (1)
- Biorefinery (1)
- Biorefinery definitions (1)
- Bladder (1)
- Bragg peak (1)
- CRISPR/Cas9 (1)
- Chimeric liver-humanized mice (1)
- Chiralidon-R (1)
- Chiralidon-S (1)
- Crude heparin (1)
- Cyclotron production (1)
- Decentral (1)
- Dehydrogenase (1)
- Detergent protease (1)
- Deuterated solvents (1)
- Deuterium NMR (1)
- Diaphorase (1)
- Drug distribution (1)
- Drug metabolism (1)
- Enzymatic biosensor (1)
- Extracellular enzymes (1)
- Ga-68 (1)
- Growth modelling (1)
- Hypersecretion (1)
- IR (1)
- Inorganic ions (1)
- Introduction (1)
- Ions (1)
- Knockout mice (1)
- Levulinic acid (1)
- Lignocellulose feedstook (1)
- Linear discriminant analysis (1)
- Manufacturer (1)
- Marker-free mutagenesis (1)
- Mechanical (1)
- Mechanical simulation (1)
- Medical radionuclide production (1)
- Metal contaminants (1)
- Microfluidic solvent extraction (1)
- Minor chemistry (1)
- Molecular modelling (1)
- Molecular weight determination (1)
- NMR (1)
- On-site (1)
- P2G (1)
- PLS-regression (1)
- Physical chemistry (1)
- Physical chemistry basics (1)
- Physical chemistry starters (1)
- Physikalische Chemie (1)
- Pre-treatment (1)
- Process schemes (1)
- Quality control (1)
- Quantum chemistry (1)
- Reconstruction (1)
- Renewable resources (1)
- Simultaneous determination (1)
- Soft independent modeling of class analogy (1)
- Stenotrophomonas maltophilia (1)
- Thermodynamics as minor (1)
- Toxicology (1)
- USP (1)
- Uracil-phosphoribosyltransferase (1)
- Ureter (1)
- actuator-sensor system (1)
- aspergillus (1)
- bacterial cellulose (1)
- bi-enzyme biosensor (1)
- bioavailability (1)
- biodegradable polymers (1)
- biological dosimeter (1)
- biomethane (1)
- borehole disposal (1)
- bubble column (1)
- capacitive field-effect sensor (1)
- coculture (1)
- deficit irrigation (1)
- disposal facility (1)
- drug metabolising enzymes (1)
- drug–drug interactions (1)
- elastomers (1)
- enzyme kinetics (1)
- enzyme-logic gate (1)
- exopolysaccharides (1)
- filamentous fungi (1)
- genome engineering (1)
- geological disposal (1)
- glycine (1)
- human metabolites (1)
- hydrogel (1)
- hydrogels (1)
- light-addressable electrode (1)
- light-addressable potentiometric sensor (1)
- mechanical properties (1)
- methanation (1)
- microfluidics (1)
- micronutrients (1)
- neutrons (1)
- nuclear waste (1)
- onion (1)
- optical fibers (1)
- penicillinase (1)
- plug flow reactor (1)
- polyaspartic acid (1)
- prebiotic (1)
- proton therapy (1)
- protons (1)
- pullulan (1)
- qNMR (1)
- relative dosimetry (1)
- retention time (1)
- rubber (1)
- superabsorbent polymers (1)
- supramolecular structures (1)
- swelling properties (1)
- theory and modeling (1)
- tobacco mosaic virus (TMV) (1)
- transporters (1)
- urease (1)
- water economy (1)
- yield (1)
Institute
- Fachbereich Chemie und Biotechnologie (829) (remove)
Paracoccus denitrificans for the effluent recycling during continuous denitrification of liquid food
(2010)
Nitrate is an undesirable component of several foods. A typical case of contamination with high nitrate contents is whey concentrate, containing nitrate in concentrations up to 25 l. The microbiological removal of nitrate by Paracoccus denitrificans under formation of harmless nitrogen in combination with a cell retention reactor is described here. Focus lies on the resource-conserving design of a microbal denitrification process. Two methods are compared. The application of polyvinyl alcohol-immobilized cells, which can be applied several times in whey feed, is compared with the implementation of a two step denitrification system. First, the whey concentrate's nitrate is removed by ion exchange and subsequently the eluent regenerated by microorganisms under their retention by crossflow filtration. Nitrite and nitrate concentrations were determined by reflectometric color measurement with a commercially available Reflectoquant® device. Correction factors for these media had to be determined. During the pilot development, bioreactors from 4 to 250 mg·L-1 and crossflow units with membrane areas from 0.02 to 0.80 m2 were examined. Based on the results of the pilot plants, a scaling for the exemplary process of denitrifying 1,000 tons per day is discussed.
Partielle Oxidation von o-Xylol zu Phthalsäreanhydrid an V/Ti-Schalenkatalysatoren : [Synopsis 1898]
(1990)
Partielle Oxidation von o-Xylol zu Phthalsäureanhydrid in einem strukturierten Festbettreaktor
(1991)
Die Darstellung der N-[2-(p-Biphenylyl)isopropyloxycarbonyl]-Derivate (Bpoc-Derivate) des Cysteins unter Verwendung der Thiolschutzgruppen Tetrahydropyranyl (Thp) für 1, Diphenylmethyl (Dpm) für 2, Trityl (Trt) für 3 und S-tert.-Butyl (SBut) für 4 sowie die Synthese von aktivierten Estern der Bpoc-Derivate des Glycins (5), Isoleucins (6) und Prolins (7) werden beschrieben. An einem Beispiel wird die Möglichkeit aufgezeigt, die Bpoc-Gruppe über das Bpoc-Azid nachträglich in den Peptidverband einzuführen.
Die Synthese der Sequenzen A2—21 (13) und A1—21 (15) der Schafinsulin-A-Kette als monomere cyclische Dicystinpeptidderivate wird beschrieben. Die intrachenaren Cystinbrücken A6—7 und A 11 —20 vermitteln die Löslichkeit dieser Derivate in Dimethylformamid und ermöglichen erstmalig die Reindarstellung vollgeschützter Insulin-A-Kettenderivate. Die während der Synthese eingesetzten Schutzgruppen lassen sich mittels Trifluoressigsäure und 2-Mercaptoäthanol quantitativ entfernen.