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@MASTERSTHESIS{Kellhammer:572929,
      author       = {Kellhammer, Diana},
      othercontributors = {Henri, Müller},
      title        = {{B}ildverarbeitung filamentöser {S}chimmelpilze kultiviert
                      mit {M}ikro- und {M}akropartikeln},
      school       = {Technische Universität München},
      type         = {Masterarbeit},
      address      = {Freising},
      publisher    = {School of Life Sciences},
      reportid     = {PUBDB-2023-00816},
      pages        = {87},
      year         = {2022},
      note         = {konnte die Arbeit leider nicht online finden.;
                      Masterarbeit, Technische Universität München, 2022},
      abstract     = {The numerous advantages of filamentous fungal-pellets for
                      the production of various products, such as citric acid,
                      attract the attention of researchers and industrial
                      engineers. In this regard, it is important to study the
                      morphology of the fungal pellets, as it has a great impact
                      on productivity. This can best be analyzed using
                      three-dimensional images taken with synchrotron
                      radiation-based X-ray microtomography. The morphology of the
                      fungal pellets can also be greatly influenced by the
                      addition of micro- and macro particles. Therefore, in this
                      thesis, the morphology of Aspergillus niger fungal-pellets
                      from different series of experiments was investigated using
                      three-dimensional images acquired at the synchrotron
                      (Deutsches Elektron Synchrotron DESY, Hamburg, Germany). For
                      morphology analysis, a method was developed in MATLAB® to
                      segment the embedded glass. Subsequently, the hyphal, hyphal
                      tip, and branching densities, as well as the distribution of
                      the embedded glass over the radius, were determined. In the
                      first series of experiment fungal cells were cultivated with
                      and without microparticles for different cultivation times.
                      The result showed that pellets grow faster at the beginning
                      of cultivation and also continue to grow not only at the
                      edge of the pellet but also inside the pellet. Furthermore,
                      pellets with different concentrations of microparticles were
                      cultivated. This resulted in smaller, less dense pellets for
                      higher concentrations. In addition, pellets were cultivated
                      with surface-modified microparticles. This cultivation
                      resulted in pellets with low hyphae density in the center
                      and relatively high hyphae density at the edge of the
                      pellet. In addition, ring-shaped inclusions of the glass
                      resulted for the cultivation of pellets for some
                      modifications. Finally, pellets with macroparticles of
                      different sizes were cultivated. This resulted in less
                      dense, large pellets for relatively small macroparticles and
                      dense, small pellets for relatively large macroparticles.
                      Finally, a new method was developed to divide the fungal
                      pellets into smaller volume parts in order to investigate
                      different properties in more detail.},
      cin          = {DOOR ; HAS-User},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20211150
                      (I-20211150) / FS-Proposal: I-20200214 (I-20200214)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20211150 /
                      G:(DE-H253)I-20200214},
      experiment   = {EXP:(DE-H253)P-P05-20150101},
      typ          = {PUB:(DE-HGF)19},
      url          = {https://bib-pubdb1.desy.de/record/572929},
}