@article{TippkoetterDuweWiesenetal.2014,
  author    = {Tippk{\"o}tter, Nils and Duwe, Anna-Maria and Wiesen, Sebastian and Sieker, Tim and Ulber, Roland},
  title     = {Enzymatic hydrolysis of beech wood lignocellulose at high solid contents and its utilization as substrate for the production of biobutanol and dicarboxylic acids},
  series = {Bioresource Technology},
  volume    = {167},
  journal   = {Bioresource Technology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.biortech.2014.06.052},
  pages     = {447 -- 455},
  year      = {2014},
  abstract  = {The development of a cost-effective hydrolysis for crude cellulose is an essential part of biorefinery developments. To establish such high solid hydrolysis, a new solid state reactor with static mixing is used. However, concentrations >10\% (w/w) cause a rate and yield reduction of enzymatic hydrolysis. By optimizing the synergetic activity of cellulolytic enzymes at solid concentrations of 9\%, 17\% and 23\% (w/w) of crude Organosolv cellulose, glucose concentrations of 57, 113 and 152 g L⁻¹ are reached. However, the glucose yield decreases from 0.81 to 0.72gg⁻¹ at 17\% (w/w). Optimal conditions for hydrolysis scale-up under minimal enzyme addition are identified. As result, at 23\% (w/w) crude cellulose the glucose yield increases from 0.29 to 0.49gg⁻¹. As proof of its applicability, biobutanol, succinic and itaconic acid are produced with the crude hydrolysate. The potential of the substrate is proven e.g. by a high butanol yield of 0.33gg⁻¹.},
  language  = {en}
}
@article{TippkoetterWollnySucketal.2014,
  author    = {Tippk{\"o}tter, Nils and Wollny, Steffen and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland},
  title     = {Recycling of spent oil bleaching earth as source of glycerol for the anaerobic production of acetone, butanol, and ethanol with Clostridium diolis and lipolytic Clostridium lundense},
  series = {Engineering in Life Sciences},
  volume    = {14},
  journal   = {Engineering in Life Sciences},
  number    = {4},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1618-2863},
  doi       = {10.1002/elsc.201300113},
  pages     = {425 -- 432},
  year      = {2014},
  abstract  = {A major part of edible oil is subjected to bleaching procedures, primarily with minerals applied as adsorbers. Their recycling is currently done either by regaining the oil via organic solvent extraction or by using the spent bleaching earth (SBE) as additive for animal feed, etc. As a new method, the reutilization of the by-product SBE for the microbiologic formation of acetone, butanol, and ethanol (ABE) is presented as proof-of-concept. The SBE was taken from a palm oil cleaning process. The recycling concept is based on the application of lipolytic clostridia strains. Due to considerably long fermentation times, co-fermentation with Candida rugosa and enzymatic hydrolyses of the bound oil with a subsequent clostridia fermentation are shown as alternative routes. Anaerobic fermentations under comparison of different clostridia strains were performed with glycerol media, enzymatically hydrolyzed palm oil and SBE. Solutes, side product compositions and productivities were quantified via HPLC. A successful production of ABE solutes from SBE has been done with a yield of 0.15 g butanol per gram of bound glycerol. Thus, the biotechnological recycling of the waste stream is possible in principle. Inhibition of the substrate suspension has been observed. A chromatographic ion-exchange of substrates increased the biomass concentration.},
  language  = {en}
}
@article{BaeckerDellePoghossianetal.2011,
  author    = {B{\"a}cker, Matthias and Delle, L. and Poghossian, Arshak and Biselli, Manfred and Zang, Werner and Wagner, P. and Sch{\"o}ning, Michael Josef},
  title     = {Electrochemical sensor array for bioprocess monitoring},
  series = {Electrochimica Acta (2011)},
  volume    = {56},
  journal   = {Electrochimica Acta (2011)},
  number    = {26},
  publisher = {Elsevier},
  address   = {Amsterdam},
  pages     = {9673 -- 9678},
  year      = {2011},
  language  = {en}
}
@article{BaeckerRaueSchusseretal.2012,
  author    = {B{\"a}cker, Matthias and Raue, Markus and Schusser, Sebastian and Jeitner, C. and Breuer, L. and Wagner, P. and Poghossian, Arshak and F{\"o}rster, Arnold and Mang, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Microfluidic chip with integrated microvalves based on temperature- and pH-responsive hydrogel thin films},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201100763},
  pages     = {839 -- 845},
  year      = {2012},
  abstract  = {Two types of microvalves based on temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) and pH-responsive poly(sodium acrylate) (PSA) hydrogel films have been developed and tested. The PNIPAAm and PSA hydrogel films were prepared by means of in situ photopolymerization directly inside the fluidic channel of a microfluidic chip fabricated by combining Si and SU-8 technologies. The swelling/shrinking properties and height changes of the PNIPAAm and PSA films inside the fluidic channel were studied at temperatures of deionized water from 14 to 36 °C and different pH values (pH 3-12) of Titrisol buffer, respectively. Additionally, in separate experiments, the lower critical solution temperature (LCST) of the PNIPAAm hydrogel was investigated by means of a differential scanning calorimetry (DSC) and a surface plasmon resonance (SPR) method. Mass-flow measurements have shown the feasibility of the prepared hydrogel films to work as an on-chip integrated temperature- or pH-responsive microvalve capable to switch the flow channel on/off.},
  language  = {en}
}
@incollection{DuongSeifarthTemizArtmannetal.2018,
  author    = {Duong, Minh Tuan and Seifarth, Volker and Temiz Artmann, Ayseg{\"u}l and Artmann, Gerhard and Staat, Manfred},
  title     = {Growth Modelling Promoting Mechanical Stimulation of Smooth Muscle Cells of Porcine Tubular Organs in a Fibrin-PVDF Scaffold},
  series = {Biological, Physical and Technical Basics of Cell Engineering},
  booktitle = {Biological, Physical and Technical Basics of Cell Engineering},
  editor    = {Artmann, Gerhard and Temiz Artmann, Ayseg{\"u}l and Zhubanova, Azhar A. and Digel, Ilya},
  publisher = {Springer},
  address   = {Singapore},
  isbn      = {978-981-10-7904-7},
  doi       = {10.1007/978-981-10-7904-7_9},
  pages     = {209 -- 232},
  year      = {2018},
  abstract  = {Reconstructive surgery and tissue replacements like ureters or bladders reconstruction have been recently studied, taking into account growth and remodelling of cells since living cells are capable of growing, adapting, remodelling or degrading and restoring in order to deform and respond to stimuli. Hence, shapes of ureters or bladders and their microstructure change during growth and these changes strongly depend on external stimuli such as training. We present the mechanical stimulation of smooth muscle cells in a tubular fibrin-PVDFA scaffold and the modelling of the growth of tissue by stimuli. To this end, mechanotransduction was performed with a kyphoplasty balloon catheter that was guided through the lumen of the tubular structure. The bursting pressure was examined to compare the stability of the incubated tissue constructs. The results showed the significant changes on tissues with training by increasing the burst pressure as a characteristic mechanical property and the smooth muscle cells were more oriented with uniformly higher density. Besides, the computational growth models also exhibited the accurate tendencies of growth of the cells under different external stimuli. Such models may lead to design standards for the better layered tissue structure in reconstructing of tubular organs characterized as composite materials such as intestines, ureters and arteries.},
  language  = {en}
}
@article{AlKaidyDuweHusteretal.2015,
  author    = {Al-Kaidy, Huschyar and Duwe, Anna and Huster, Manuel and Muffler, Kai and Schlegel, Christin and Tim, Sieker and Stadtm{\"u}ller, Ralf and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Biotechnology and bioprocess engineering - from the first ullmann's article to recent trends},
  series = {ChemBioEng Reviews},
  volume    = {2},
  journal   = {ChemBioEng Reviews},
  number    = {3},
  publisher = {Wiley},
  address   = {Weinheim},
  doi       = {10.1002/cben.201500008},
  pages     = {175 -- 184},
  year      = {2015},
  abstract  = {For several thousand years, biotechnology and its associated technical processes have had a great impact on the development of mankind. Based on empirical methods, in particular for the production of foodstuffs and daily commodities, these disciplines have become one of the most innovative future issues. Due to the increasing detailed understanding of cellular processes, production strains can now be optimized. In combination with modern bioprocesses, a variety of bulk and fine chemicals as well as pharmaceuticals can be produced efficiently. In this article, some of the current trends in biotechnology are discussed.},
  language  = {en}
}
@article{PothMonzonTippkoetteretal.2011,
  author    = {Poth, Sebastian and Monzon, Magaly and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Lignocellulosic biorefinery: Process integration of hydrolysis and fermentation (SSF process)},
  series = {Holzforschung},
  volume    = {65},
  journal   = {Holzforschung},
  number    = {5},
  publisher = {De Gruyter},
  address   = {Berlin},
  pages     = {633 -- 637},
  year      = {2011},
  abstract  = {The aim of the present work is the process integration and the optimization of the enzymatic hydrolysis of wood and the following fermentation of the products to ethanol. The substrate is a fiber fraction obtained by organosolv pre-treatment of beech wood. For the ethanol production, a co-fermentation by two different yeasts (Saccharomyces cerevisiae and Pachysolen tannophilus) was carried out to convert glucose as well as xylose. Two approaches has been followed: 1. A two step process, in which the hydrolysis of the fiber fraction and the fermentation to product are separated from each other. 2. A process, in which the hydrolysis and the fermentation are carried out in one single process step as simultaneous saccharification and fermentation (SSF). Following the first approach, a yield of about 0.15 g ethanol per gram substrate can be reached. Based on the SSF, one process step can be saved, and additionally, the gained yield can be raised up to 0.3 g ethanol per gram substrate.},
  language  = {en}
}
@inproceedings{AlKaidyUlberTippkoetter2014,
  author    = {Al-Kaidy, H. and Ulber, Roland and Tippk{\"o}tter, Nils},
  title     = {A platform technology for the automated reaction control in magnetizable micro-fluidic droplets},
  series = {Biomaterials - made in bioreactors : book of abstracts, May 26 - 28, 2014, Radisson Blu Park Hotel and Conference Dentre, Radebeul, Germany},
  booktitle = {Biomaterials - made in bioreactors : book of abstracts, May 26 - 28, 2014, Radisson Blu Park Hotel and Conference Dentre, Radebeul, Germany},
  publisher = {DECHEMA},
  address   = {Frankfurt am Main},
  pages     = {21 -- 22},
  year      = {2014},
  language  = {en}
}
@article{GerigkBujnickiGanpoNkwenkwaetal.2002,
  author    = {Gerigk, M. and Bujnicki, R. and Ganpo-Nkwenkwa, E. and Bongaerts, Johannes and Sprenger, G. and Takors, Ralf},
  title     = {Process control for enhanced L-phenylalanine production using different recombinant Escherichia coli strains},
  series = {Biotechnology and bioengineering},
  volume    = {Vol. 80},
  journal   = {Biotechnology and bioengineering},
  number    = {Iss. 7},
  issn      = {1097-0290 (E-Journal); 0006-3592 (Print)},
  pages     = {746 -- 754},
  year      = {2002},
  language  = {en}
}
@article{BongaertsBovenbergKraemeretal.2002,
  author    = {Bongaerts, Johannes and Bovenberg, Roel and Kr{\"a}mer, Marco and M{\"u}ller, Ulrike and Raeven, Leon and Wubbolts, Marcel},
  title     = {Metabolic engineering to produce fine chemicals in Escherichia coli},
  series = {Chemie - Ingenieur - Technik (CIT)},
  volume    = {Vol. 74},
  journal   = {Chemie - Ingenieur - Technik (CIT)},
  number    = {Iss. 5},
  issn      = {1522-2640 (E-Journal); 0009-286X (Print)},
  pages     = {694},
  year      = {2002},
  language  = {en}
}
@article{BongaertsZoschkeWeidneretal.1995,
  author    = {Bongaerts, Johannes and Zoschke, Sascha and Weidner, Uwe and Linden, Gottfried},
  title     = {Transcriptional regulation of the proton translocating NADH},
  series = {Molecular microbiology},
  volume    = {Vol. 16},
  journal   = {Molecular microbiology},
  number    = {Iss. 3},
  issn      = {1365-2958 (E-Journal); 0950-382x (Print)},
  pages     = {521 -- 534},
  year      = {1995},
  language  = {en}
}
@article{MonakhovaDiehl2021,
  author    = {Monakhova, Yulia and Diehl, Bernd W.K.},
  title     = {Novel approach of qNMR workflow by standardization using 2H integral: Application to any intrinsic calibration standard},
  series = {Talanta},
  volume    = {222},
  journal   = {Talanta},
  number    = {Article number: 121504},
  publisher = {Elsevier},
  isbn      = {0039-9140},
  doi       = {10.1016/j.talanta.2020.121504},
  year      = {2021},
  abstract  = {Quantitative nuclear magnetic resonance (qNMR) is routinely performed by the internal or external standardization. The manuscript describes a simple alternative to these common workflows by using NMR signal of another active nuclei of calibration compound. For example, for any arbitrary compound quantification by NMR can be based on the use of an indirect concentration referencing that relies on a solvent having both 1H and 2H signals. To perform high-quality quantification, the deuteration level of the utilized deuterated solvent has to be estimated. In this contribution the new method was applied to the determination of deuteration levels in different deuterated solvents (MeOD, ACN, CDCl3, acetone, benzene, DMSO-d6). Isopropanol-d6, which contains a defined number of deuterons and protons, was used for standardization. Validation characteristics (precision, accuracy, robustness) were calculated and the results showed that the method can be used in routine practice. Uncertainty budget was also evaluated. In general, this novel approach, using standardization by 2H integral, benefits from reduced sample preparation steps and uncertainties, and can be applied in different application areas (purity determination, forensics, pharmaceutical analysis, etc.).},
  language  = {en}
}
@article{MonakhovaDiehl2022,
  author    = {Monakhova, Yulia and Diehl, Bernd W.K.},
  title     = {Multinuclear NMR screening of pharmaceuticals using standardization by 2H integral of a deuterated solvent},
  series = {Journal of Pharmaceutical and Biomedical Analysis},
  volume    = {209},
  journal   = {Journal of Pharmaceutical and Biomedical Analysis},
  number    = {Article number: 114530},
  publisher = {Elsevier},
  isbn      = {0731-7085},
  doi       = {10.1016/j.jpba.2021.114530},
  year      = {2022},
  abstract  = {NMR standardization approach that uses the 2H integral of deuterated solvent for quantitative multinuclear analysis of pharmaceuticals is described. As a proof of principle, the existing NMR procedure for the analysis of heparin products according to US Pharmacopeia monograph is extended to the determination of Na+ and Cl- content in this matrix. Quantification is performed based on the ratio of a 23Na (35Cl) NMR integral and 2H NMR signal of deuterated solvent, D2O, acquired using the specific spectrometer hardware. As an alternative, the possibility of 133Cs standardization using the addition of Cs2CO3 stock solution is shown. Validation characteristics (linearity, repeatability, sensitivity) are evaluated. A holistic NMR profiling of heparin products can now also be used for the quantitative determination of inorganic compounds in a single analytical run using a single sample. In general, the new standardization methodology provides an appealing alternative for the NMR screening of inorganic and organic components in pharmaceutical products.},
  language  = {en}
}
@article{BlockMayWetzeletal.2023,
  author    = {Block, Franziska and May, Alexander and Wetzel, Katharina and Adels, Klaudia and Elbers, Gereon and Schulze, Margit and Monakhova, Yulia},
  title     = {What is the best spectroscopic method for simultaneous analysis of organic acids and (poly)saccharides in biological matrices: Example of Aloe vera extracts?},
  series = {Talanta Open},
  volume    = {7},
  journal   = {Talanta Open},
  number    = {Art. No. 100220},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2666-8319},
  doi       = {10.1016/j.talo.2023.100220},
  pages     = {1 -- 9},
  year      = {2023},
  abstract  = {Several species of (poly)saccharides and organic acids can be found often simultaneously in various biological matrices, e.g., fruits, plant materials, and biological fluids. The analysis of such matrices sometimes represents a challenging task. Using Aloe vera (A. vera) plant materials as an example, the performance of several spectro-scopic methods (80 MHz benchtop NMR, NIR, ATR-FTIR and UV-vis) for the simultaneous analysis of quality parameters of this plant material was compared. The determined parameters include (poly)saccharides such as aloverose, fructose and glucose as well as organic acids (malic, lactic, citric, isocitric, acetic, fumaric, benzoic and sorbic acids). 500 MHz NMR and high-performance liquid chromatography (HPLC) were used as the reference methods. UV-vis data can be used only for identification of added preservatives (benzoic and sorbic acids) and drying agent (maltodextrin) and semiquantitative analysis of malic acid. NIR and MIR spectroscopies combined with multivariate regression can deliver more informative overview of A. vera extracts being able to additionally quantify glucose, aloverose, citric, isocitric, malic, lactic acids and fructose. Low-field NMR measurements can be used for the quantification of aloverose, glucose, malic, lactic, acetic, and benzoic acids. The benchtop NMR method was successfully validated in terms of robustness, stability, precision, reproducibility and limit of detection (LOD) and quantification (LOQ), respectively. All spectroscopic techniques are useful for the screening of (poly)saccharides and organic acids in plant extracts and should be applied according to its availability as well as information and confidence required for the specific analytical goal. Benchtop NMR spectroscopy seems to be the most feasible solution for quality control of A. vera products.},
  language  = {en}
}
@article{AdelsElbersDiehletal.2023,
  author    = {Adels, Klaudia and Elbers, Gereon and Diehl, Bernd and Monakhova, Yulia},
  title     = {Multicomponent analysis of dietary supplements containing glucosamine and chondroitin: comparative low- and high-field NMR spectroscopic study},
  series = {Analytical Sciences},
  volume    = {2023},
  journal   = {Analytical Sciences},
  publisher = {Springer Verlag},
  address   = {Cham},
  issn      = {1348-2246 (Online)},
  doi       = {10.1007/s44211-023-00433-2},
  pages     = {13 Seiten},
  year      = {2023},
  abstract  = {With the prevalence of glucosamine- and chondroitin-containing dietary supplements for people with osteoarthritis in the marketplace, it is important to have an accurate and reproducible analytical method for the quantitation of these compounds in finished products. NMR spectroscopic method based both on low- (80 MHz) and high- (500-600 MHz) field NMR instrumentation was established, compared and validated for the determination of chondroitin sulfate and glucosamine in dietary supplements. The proposed method was applied for analysis of 20 different dietary supplements. In the majority of cases, quantification results obtained on the low-field NMR spectrometer are similar to those obtained with high-field 500-600 MHz NMR devices. Validation results in terms of accuracy, precision, reproducibility, limit of detection and recovery demonstrated that the developed method is fit for purpose for the marketed products. The NMR method was extended to the analysis of methylsulfonylmethane, adulterant maltodextrin, acetate and inorganic ions. Low-field NMR can be a quicker and cheaper alternative to more expensive high-field NMR measurements for quality control of the investigated dietary supplements. High-field NMR instrumentation can be more favorable for samples with complex composition due to better resolution, simultaneously giving the possibility of analysis of inorganic species such as potassium and chloride.},
  language  = {en}
}
@article{TrappLammersEngudaretal.2023,
  author    = {Trapp, Svenja and Lammers, Tom and Engudar, Gokce and Hoehr, Cornelia and Denkova, Antonia G. and Paulßen, Elisabeth and de Kruijff, Robin M.},
  title     = {Membrane-based microfluidic solvent extraction of Ga-68 from aqueous Zn solutions: towards an automated cyclotron production loop},
  series = {EJNMMI Radiopharmacy and Chemistry},
  volume    = {2023},
  journal   = {EJNMMI Radiopharmacy and Chemistry},
  number    = {8, Article number: 9},
  publisher = {Springer Nature},
  issn      = {2365-421X},
  doi       = {10.1186/s41181-023-00195-2},
  pages     = {1 -- 14},
  year      = {2023},
  language  = {en}
}
@article{MonakhovaDiehl2021,
  author    = {Monakhova, Yulia and Diehl, Bernd W. K.},
  title     = {A step towards optimization of the qNMR workflow: proficiency testing exercise at an GxP-accredited laboratory},
  series = {Applied Magnetic Resonance},
  volume    = {52},
  journal   = {Applied Magnetic Resonance},
  publisher = {Springer Nature},
  address   = {Wien},
  issn      = {1613-7507},
  doi       = {10.1007/s00723-021-01324-3},
  pages     = {581 -- 593},
  year      = {2021},
  abstract  = {Quantitative nuclear magnetic resonance (qNMR) is considered as a powerful tool for multicomponent mixture analysis as well as for the purity determination of single compounds. Special attention is currently paid to the training of operators and study directors involved in qNMR testing. To assure that only qualified personnel are used for sample preparation at our GxP-accredited laboratory, weighing test was proposed. Sixteen participants performed six-fold weighing of the binary mixture of dibutylated hydroxytoluene (BHT) and 1,2,4,5-tetrachloro-3-nitrobenzene (TCNB). To evaluate the quality of data analysis, all spectra were evaluated manually by a qNMR expert and using in-house developed automated routine. The results revealed that mean values are comparable and both evaluation approaches are free of systematic error. However, automated evaluation resulted in an approximately 20\% increase in precision. The same findings were revealed for qNMR analysis of 32 compounds used in pharmaceutical industry. Weighing test by six-fold determination in binary mixtures and automated qNMR methodology can be recommended as efficient tools for evaluating staff proficiency. The automated qNMR method significantly increases throughput and precision of qNMR for routine measurements and extends application scope of qNMR.},
  language  = {en}
}
@article{FalkenbergVossBottetal.2023,
  author    = {Falkenberg, Fabian and Voß, Leonie and Bott, Michael and Bongaerts, Johannes and Siegert, Petra},
  title     = {New robust subtilisins from halotolerant and halophilic Bacillaceae},
  series = {Applied Microbiology and Biotechnology},
  volume    = {107},
  journal   = {Applied Microbiology and Biotechnology},
  publisher = {Springer Nature},
  address   = {Berlin},
  issn      = {1432-0614},
  doi       = {10.1007/s00253-023-12553-w},
  pages     = {3939 -- 3954},
  year      = {2023},
  abstract  = {The aim of the present study was the characterisation of three true subtilisins and one phylogenetically intermediate subtilisin from halotolerant and halophilic microorganisms. Considering the currently growing enzyme market for efficient and novel biocatalysts, data mining is a promising source for novel, as yet uncharacterised enzymes, especially from halophilic or halotolerant Bacillaceae, which offer great potential to meet industrial needs. Both halophilic bacteria Pontibacillus marinus DSM 16465ᵀ and Alkalibacillus haloalkaliphilus DSM 5271ᵀ and both halotolerant bacteria Metabacillus indicus DSM 16189 and Litchfieldia alkalitelluris DSM 16976ᵀ served as a source for the four new subtilisins SPPM, SPAH, SPMI and SPLA. The protease genes were cloned and expressed in Bacillus subtilis DB104. Purification to apparent homogeneity was achieved by ethanol precipitation, desalting and ion-exchange chromatography. Enzyme activity could be observed between pH 5.0-12.0 with an optimum for SPPM, SPMI and SPLA around pH 9.0 and for SPAH at pH 10.0. The optimal temperature for SPMI and SPLA was 70 °C and for SPPM and SPAH 55 °C and 50 °C, respectively. All proteases showed high stability towards 5\% (w/v) SDS and were active even at NaCl concentrations of 5 M. The four proteases demonstrate potential for future biotechnological applications.},
  language  = {en}
}
@incollection{MufflerTippkoetterUlber2010,
  author    = {Muffler, Kai and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Chemical feedstocks and fine chemicals from other substrates},
  series = {Handbook of hydrocarbon and lipid microbiology. Volume 4: Consequences of microbial interactions with hydrocarbons, oils and lipids. - (Springer reference)},
  booktitle = {Handbook of hydrocarbon and lipid microbiology. Volume 4: Consequences of microbial interactions with hydrocarbons, oils and lipids. - (Springer reference)},
  editor    = {Timmis, Kenneth N.},
  publisher = {Springer},
  address   = {Berlin [u.a.]},
  isbn      = {978-3-540-77588-1},
  doi       = {10.1007\%2F978-3-540-77587-4_214},
  pages     = {2891 -- 2902},
  year      = {2010},
  language  = {en}
}
@incollection{MufflerPothSiekeretal.2011,
  author    = {Muffler, Kai and Poth, Sabastian and Sieker, Tim and Tippk{\"o}tter, Nils and Ulber, Roland and Sell, Dieter},
  title     = {Bio-feedstocks},
  series = {Comprehensive biotechnology : principles and practices in industry, agcriculture, medicine and the environment. Volume 2: Engineering fundamentals of biotechnology},
  booktitle = {Comprehensive biotechnology : principles and practices in industry, agcriculture, medicine and the environment. Volume 2: Engineering fundamentals of biotechnology},
  editor    = {Moo-Young, Murray},
  edition   = {2. edition},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {978-0-444-53352-4},
  doi       = {10.1016/B978-0-08-088504-9.00088-X},
  pages     = {93 -- 101},
  year      = {2011},
  language  = {en}
}