TY  - CHAP
A1  - Kasper, Katharina
A1  - Schiffels, Johannes
A1  - Krafft, Simone
A1  - Kuperjans, Isabel
A1  - Elbers, Gereon
A1  - Selmer, Thorsten
T1  - Biogas Production on Demand Regulated by Butyric Acid Addition
T2  - IOP Conference Series: Earth and Environmental Science. Bd. 32
Y1  - 2016
U6  - https://doi.org/10.1088/1755-1315/32/1/012009
SN  - 1755-1315
N1  - ICARET 2016, International Conference on Advances in Renewable Energy and Technologies, Putrajaya, MY, Feb 23-25, 2016
VL  - 32
SP  - 012009/1
EP  - 012009/4
ER  - 
TY  - JOUR
A1  - Bertz, Morten
A1  - Schöning, Michael Josef
A1  - Molinnus, Denise
A1  - Homma, Takayuki
T1  - Influence of temperature, light, and H₂O₂ concentration on microbial spore inactivation: in-situ Raman spectroscopy combined with optical trapping
JF  - Physica status solidi (a) applications and materials science
N2  - To gain insight on chemical sterilization processes, the influence of temperature (up to 70 °C), intense green light, and hydrogen peroxide (H₂O₂) concentration (up to 30% in aqueous solution) on microbial spore inactivation is evaluated by in-situ Raman spectroscopy with an optical trap. Bacillus atrophaeus is utilized as a model organism. Individual spores are isolated and their chemical makeup is monitored under dynamically changing conditions (temperature, light, and H₂O₂ concentration) to mimic industrially relevant process parameters for sterilization in the field of aseptic food processing. While isolated spores in water are highly stable, even at elevated temperatures of 70 °C, exposure to H₂O₂ leads to a loss of spore integrity characterized by the release of the key spore biomarker dipicolinic acid (DPA) in a concentration-dependent manner, which indicates damage to the inner membrane of the spore. Intensive light or heat, both of which accelerate the decomposition of H₂O₂ into reactive oxygen species (ROS), drastically shorten the spore lifetime, suggesting the formation of ROS as a rate-limiting step during sterilization. It is concluded that Raman spectroscopy can deliver mechanistic insight into the mode of action of H₂O₂-based sterilization and reveal the individual contributions of different sterilization methods acting in tandem.
KW  - hydrogen peroxide
KW  - optical spore trapping
KW  - Raman spectroscopy
KW  - sterilization conditions
KW  - temperature
Y1  - 2024
U6  - https://doi.org/10.1002/pssa.202300866
SN  - 1862-6319 (Online)
SN  - 1862-6300 (Print)
N1  - Corresponding author: Michael J. Schöning
IS  - Early View
PB  - Wiley-VCH
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Polen, T.
A1  - Krämer, Marco
A1  - Bongaerts, Johannes
A1  - Wubbolts, Marcel
A1  - Wendisch, V. F.
T1  - The global gene expression response of Escherichia coli to L-phenylalanine
JF  - Journal of biotechnology
Y1  - 2005
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
VL  - Vol. 115
IS  - Iss. 3
SP  - 221
EP  - 237
ER  - 
TY  - JOUR
A1  - Bongaerts, Johannes
A1  - Esser, Simon
A1  - Lorbach, Volker
A1  - Al-Momani, Lóay
A1  - Müller, Michael A.
A1  - Franke, Dirk
A1  - Grondal, Christoph
A1  - Kurutsch, Anja
A1  - Bujnicki, Robert
A1  - Takors, Ralf
A1  - Raeven, Leon
A1  - Wubbolts, Marcel
A1  - Bovenberg, Roel
A1  - Nieger, Martin
A1  - Schürmann, Melanie
A1  - Trachtmann, Natalie
A1  - Kozak, Stefan
A1  - Sprenger, Georg A.
A1  - Müller, Michael
T1  - Diversity-oriented production of metabolites derived from chorismate and their use in organic synthesis
JF  - Angewandte Chemie International Edition
Y1  - 2011
SN  - 1521-3773 (E-Journal); 0570-0833 (Print); 1433-7851 (Print)
VL  - Vol. 50
IS  - Iss. 34
SP  - 7781
EP  - 7786
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Rachinger, Michael
A1  - Bauch, Melanie
A1  - Strittmatter, Axel
A1  - Bongaerts, Johannes
A1  - Evers, Stefan
A1  - Maurer, Karl-Heinz
A1  - Daniel, Rolf
A1  - Liebl, Wolfgang
A1  - Liesegang, Heiko
A1  - Ehrenreich, Armin
T1  - Size unlimited markerless deletions by a transconjugative plasmid-system in Bacillus licheniformis
JF  - Journal of biotechnology
Y1  - 2013
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
VL  - Vol. 164
IS  - Iss. 4
SP  - 365
EP  - 369
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Iken, Heiko
A1  - Bronder, Thomas
A1  - Goretzki, Alexander
A1  - Kriesel, Jana
A1  - Ahlborn, Kristina
A1  - Gerlach, Frank
A1  - Vonau, Winfried
A1  - Zander, Willi
A1  - Schubert, Jürgen
A1  - Schöning, Michael Josef
T1  - Development of a Combined pH- and Redox-Sensitive Bi-Electrode Glass Thin-Film Sensor
JF  - physica status solidi a : applications and materials sciences
Y1  - 2019
U6  - https://doi.org/10.1002/pssa.201900114
SN  - 1862-6319
VL  - 216
IS  - 12
SP  - 1
EP  - 8
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Muschallik, Lukas
A1  - Kipp, Carina Ronja
A1  - Recker, Inga
A1  - Bongaerts, Johannes
A1  - Pohl, Martina
A1  - Gelissen, Melanie
A1  - Schöning, Michael Josef
A1  - Selmer, Thorsten
A1  - Siegert, Petra
T1  - Synthesis of α-hydroxy ketones and vicinal diols with the Bacillus licheniformis DSM 13T butane-2, 3-diol dehydrogenase
JF  - Journal of Biotechnology
N2  - The enantioselective synthesis of α-hydroxy ketones and vicinal diols is an intriguing field because of the broad applicability of these molecules. Although, butandiol dehydrogenases are known to play a key role in the production of 2,3-butandiol, their potential as biocatalysts is still not well studied. Here, we investigate the biocatalytic properties of the meso-butanediol dehydrogenase from Bacillus licheniformis DSM 13T (BlBDH). The encoding gene was cloned with an N-terminal StrepII-tag and recombinantly overexpressed in E. coli. BlBDH is highly active towards several non-physiological diketones and α-hydroxyketones with varying aliphatic chain lengths or even containing phenyl moieties. By adjusting the reaction parameters in biotransformations the formation of either the α-hydroxyketone intermediate or the diol can be controlled.
Y1  - 2020
SN  - 2590-1559
U6  - https://doi.org/10.1016/j.jbiotec.2020.09.016
VL  - 202
IS  - Vol. 324
SP  - 61
EP  - 70
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Krämer, Marco
A1  - Bongaerts, Johannes
A1  - Bovenberg, Roel
A1  - Kremer, Susanne
A1  - Müller, Ulrike
A1  - Orf, Sonja
A1  - Wubbolts, Marcel
A1  - Raeven, Leon
T1  - Metabolic engineering for microbial production of shikimic acid
JF  - Metabolic engineering
Y1  - 2003
SN  - 1096-7184 (E-Journal); 1096-7176 (Print)
VL  - Vol. 5
IS  - Iss. 4
SP  - 277
EP  - 283
ER  - 
TY  - JOUR
A1  - Voigt, Birgit
A1  - Albrecht, Dirk
A1  - Sievers, Susanne
A1  - Becher, Dörte
A1  - Bongaerts, Johannes
A1  - Evers, Stefan
A1  - Schweder, Thomas
A1  - Maurer, Karl-Heinz
A1  - Hecker, Michael
T1  - High-resolution proteome maps of Bacillus licheniformis cells growing in minimal medium
JF  - Proteomics
Y1  - 2015
U6  - https://doi.org/10.1002/pmic.201400504
SN  - 1615-9861
VL  - 15
IS  - 15
SP  - 2629
EP  - 2633
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Muschallik, Lukas
A1  - Molinnus, Denise
A1  - Jablonski, Melanie
A1  - Kipp, Carina Ronja
A1  - Bongaerts, Johannes
A1  - Pohl, Martina
A1  - Wagner, Torsten
A1  - Schöning, Michael Josef
A1  - Selmer, Thorsten
A1  - Siegert, Petra
T1  - Synthesis of α-hydroxy ketones and vicinal (R, R)-diols by Bacillus clausii DSM 8716ᵀ butanediol dehydrogenase
JF  - RSC Advances
N2  - α-hydroxy ketones (HK) and 1,2-diols are important building blocks for fine chemical synthesis. Here, we describe the R-selective 2,3-butanediol dehydrogenase from B. clausii DSM 8716ᵀ (BcBDH) that belongs to the metal-dependent medium chain dehydrogenases/reductases family (MDR) and catalyzes the selective asymmetric reduction of prochiral 1,2-diketones to the corresponding HK and, in some cases, the reduction of the same to the corresponding 1,2-diols. Aliphatic diketones, like 2,3-pentanedione, 2,3-hexanedione, 5-methyl-2,3-hexanedione, 3,4-hexanedione and 2,3-heptanedione are well transformed. In addition, surprisingly alkyl phenyl dicarbonyls, like 2-hydroxy-1-phenylpropan-1-one and phenylglyoxal are accepted, whereas their derivatives with two phenyl groups are not substrates. Supplementation of Mn²⁺ (1 mM) increases BcBDH's activity in biotransformations. Furthermore, the biocatalytic reduction of 5-methyl-2,3-hexanedione to mainly 5-methyl-3-hydroxy-2-hexanone with only small amounts of 5-methyl-2-hydroxy-3-hexanone within an enzyme membrane reactor is demonstrated.
Y1  - 2020
U6  - https://doi.org/10.1039/D0RA02066D
SN  - 2046-2069
VL  - 10
SP  - 12206
EP  - 12216
PB  - Royal Society of Chemistry (RSC)
CY  - Cambridge
ER  -