---
_id: '12402'
abstract:
- lang: eng
  text: In anaerobic technology, pH values are crucial for targeted volatile fatty
    acid production. While pH dynamics can be modeled using the Anaerobic Digestion
    Model No. 1 (ADM1), simulation results may be biased. To address this issue, the
    pH prediction routine of Visual Water, a specialized water chemistry simulator,
    was validated. Unlike ADM1, it accounts for ionic strength and activities while
    also providing an automated uncertainty analysis. The analysis revealed Visual Water
    simulations to better fit measured pH data from acidic solutions in a miniaturized
    stirred-tank reactor.
author:
- first_name: Pascal
  full_name: Kosse, Pascal
  last_name: Kosse
- first_name: Tanja
  full_name: Hernández Rodriguez, Tanja
  id: '52466'
  last_name: Hernández Rodriguez
- first_name: Björn
  full_name: Frahm, Björn
  id: '45666'
  last_name: Frahm
- first_name: Manfred
  full_name: Lübken, Manfred
  last_name: Lübken
- first_name: Marc
  full_name: Wichern, Marc
  last_name: Wichern
citation:
  ama: Kosse P, Hernández Rodriguez T, Frahm B, Lübken M, Wichern M. Comparative Analysis
    of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator.
    <i>Chemie Ingenieur Technik</i>. 2024;96(4):528-534. doi:<a href="https://doi.org/10.1002/cite.202300188">10.1002/cite.202300188</a>
  apa: Kosse, P., Hernández Rodriguez, T., Frahm, B., Lübken, M., &#38; Wichern, M.
    (2024). Comparative Analysis of pH Prediction Routines in ADM1 and a Specialized
    Water Chemistry Simulator. <i>Chemie Ingenieur Technik</i>, <i>96</i>(4), 528–534.
    <a href="https://doi.org/10.1002/cite.202300188">https://doi.org/10.1002/cite.202300188</a>
  bjps: <b>Kosse P <i>et al.</i></b> (2024) Comparative Analysis of PH Prediction
    Routines in ADM1 and a Specialized Water Chemistry Simulator. <i>Chemie Ingenieur
    Technik</i> <b>96</b>, 528–534.
  chicago: 'Kosse, Pascal, Tanja Hernández Rodriguez, Björn Frahm, Manfred Lübken,
    and Marc Wichern. “Comparative Analysis of PH Prediction Routines in ADM1 and
    a Specialized Water Chemistry Simulator.” <i>Chemie Ingenieur Technik</i> 96,
    no. 4 (2024): 528–34. <a href="https://doi.org/10.1002/cite.202300188">https://doi.org/10.1002/cite.202300188</a>.'
  chicago-de: 'Kosse, Pascal, Tanja Hernández Rodriguez, Björn Frahm, Manfred Lübken
    und Marc Wichern. 2024. Comparative Analysis of pH Prediction Routines in ADM1
    and a Specialized Water Chemistry Simulator. <i>Chemie Ingenieur Technik</i> 96,
    Nr. 4: 528–534. doi:<a href="https://doi.org/10.1002/cite.202300188">10.1002/cite.202300188</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Kosse, Pascal</span> ; <span
    style="font-variant:small-caps;">Hernández Rodriguez, Tanja</span> ; <span style="font-variant:small-caps;">Frahm,
    Björn</span> ; <span style="font-variant:small-caps;">Lübken, Manfred</span> ;
    <span style="font-variant:small-caps;">Wichern, Marc</span>: Comparative Analysis
    of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator.
    In: <i>Chemie Ingenieur Technik</i> Bd. 96. Weinheim, Wiley (2024), Nr. 4, S. 528–534'
  havard: P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, M. Wichern, Comparative
    Analysis of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator,
    Chemie Ingenieur Technik. 96 (2024) 528–534.
  ieee: 'P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, and M. Wichern, “Comparative
    Analysis of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator,”
    <i>Chemie Ingenieur Technik</i>, vol. 96, no. 4, pp. 528–534, 2024, doi: <a href="https://doi.org/10.1002/cite.202300188">10.1002/cite.202300188</a>.'
  mla: Kosse, Pascal, et al. “Comparative Analysis of PH Prediction Routines in ADM1
    and a Specialized Water Chemistry Simulator.” <i>Chemie Ingenieur Technik</i>,
    vol. 96, no. 4, 2024, pp. 528–34, <a href="https://doi.org/10.1002/cite.202300188">https://doi.org/10.1002/cite.202300188</a>.
  short: P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, M. Wichern, Chemie
    Ingenieur Technik 96 (2024) 528–534.
  ufg: '<b>Kosse, Pascal u. a.</b>: Comparative Analysis of pH Prediction Routines
    in ADM1 and a Specialized Water Chemistry Simulator, in: <i>Chemie Ingenieur Technik</i>
    96 (2024), H. 4,  S. 528–534.'
  van: Kosse P, Hernández Rodriguez T, Frahm B, Lübken M, Wichern M. Comparative Analysis
    of pH Prediction Routines in ADM1 and a Specialized Water Chemistry Simulator.
    Chemie Ingenieur Technik. 2024;96(4):528–34.
date_created: 2025-01-29T13:49:16Z
date_updated: 2025-06-25T12:42:09Z
department:
- _id: DEP4000
doi: 10.1002/cite.202300188
external_id:
  isi:
  - '001169606600001'
intvolume: '        96'
isi: '1'
issue: '4'
keyword:
- Anaerobic Digestion Model No. 1 (ADM1)
- Anaerobic technology
- pH simulation
- Uncertainty assessment
- Visual Water
language:
- iso: eng
page: 528-534
place: Weinheim
publication: Chemie Ingenieur Technik
publication_identifier:
  eissn:
  - 1522-2640
  issn:
  - 0009-286X
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Comparative Analysis of pH Prediction Routines in ADM1 and a Specialized Water
  Chemistry Simulator
type: scientific_journal_article
user_id: '83781'
volume: 96
year: '2024'
...
---
_id: '11385'
abstract:
- lang: eng
  text: Accurate pH calculations are essential for scientists across different disciplines
    to design optimal reactor solutions, but they can be arduous to calculate for
    complex acid-base solutions. Visual Water is a powerful software tool that provides
    accurate pH calculations with automated mathematical uncertainty analysis. Its
    workflow is presented and validated using acids and bases, showing a deviation
    of < 0.2 pH units between measured and calculated pH values. This highlights the
    software's reliability, which can help to simplify the work of non-experts in
    water chemistry.
author:
- first_name: Pascal
  full_name: Kosse, Pascal
  last_name: Kosse
- first_name: Tanja
  full_name: Hernández Rodriguez, Tanja
  id: '52466'
  last_name: Hernández Rodriguez
- first_name: Björn
  full_name: Frahm, Björn
  id: '45666'
  last_name: Frahm
- first_name: Manfred
  full_name: Lübken, Manfred
  last_name: Lübken
- first_name: Marc
  full_name: Wichern, Marc
  last_name: Wichern
citation:
  ama: Kosse P, Hernández Rodriguez T, Frahm B, Lübken M, Wichern M. Validation and
    Uncertainty Assessment of a Software‐Integrated Workflow for pH Calculations.
    <i>Chemie Ingenieur Technik</i>. 2023;95(12):1960-1969. doi:<a href="https://doi.org/10.1002/cite.202300082">10.1002/cite.202300082</a>
  apa: Kosse, P., Hernández Rodriguez, T., Frahm, B., Lübken, M., &#38; Wichern, M.
    (2023). Validation and Uncertainty Assessment of a Software‐Integrated Workflow
    for pH Calculations. <i>Chemie Ingenieur Technik</i>, <i>95</i>(12), 1960–1969.
    <a href="https://doi.org/10.1002/cite.202300082">https://doi.org/10.1002/cite.202300082</a>
  bjps: <b>Kosse P <i>et al.</i></b> (2023) Validation and Uncertainty Assessment
    of a Software‐Integrated Workflow for PH Calculations. <i>Chemie Ingenieur Technik</i>
    <b>95</b>, 1960–1969.
  chicago: 'Kosse, Pascal, Tanja Hernández Rodriguez, Björn Frahm, Manfred Lübken,
    and Marc Wichern. “Validation and Uncertainty Assessment of a Software‐Integrated
    Workflow for PH Calculations.” <i>Chemie Ingenieur Technik</i> 95, no. 12 (2023):
    1960–69. <a href="https://doi.org/10.1002/cite.202300082">https://doi.org/10.1002/cite.202300082</a>.'
  chicago-de: 'Kosse, Pascal, Tanja Hernández Rodriguez, Björn Frahm, Manfred Lübken
    und Marc Wichern. 2023. Validation and Uncertainty Assessment of a Software‐Integrated
    Workflow for pH Calculations. <i>Chemie Ingenieur Technik</i> 95, Nr. 12: 1960–1969.
    doi:<a href="https://doi.org/10.1002/cite.202300082">10.1002/cite.202300082</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Kosse, Pascal</span> ; <span
    style="font-variant:small-caps;">Hernández Rodriguez, Tanja</span> ; <span style="font-variant:small-caps;">Frahm,
    Björn</span> ; <span style="font-variant:small-caps;">Lübken, Manfred</span> ;
    <span style="font-variant:small-caps;">Wichern, Marc</span>: Validation and Uncertainty
    Assessment of a Software‐Integrated Workflow for pH Calculations. In: <i>Chemie
    Ingenieur Technik</i> Bd. 95. Weinheim, Wiley (2023), Nr. 12, S. 1960–1969'
  havard: P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, M. Wichern, Validation
    and Uncertainty Assessment of a Software‐Integrated Workflow for pH Calculations,
    Chemie Ingenieur Technik. 95 (2023) 1960–1969.
  ieee: 'P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, and M. Wichern, “Validation
    and Uncertainty Assessment of a Software‐Integrated Workflow for pH Calculations,”
    <i>Chemie Ingenieur Technik</i>, vol. 95, no. 12, pp. 1960–1969, 2023, doi: <a
    href="https://doi.org/10.1002/cite.202300082">10.1002/cite.202300082</a>.'
  mla: Kosse, Pascal, et al. “Validation and Uncertainty Assessment of a Software‐Integrated
    Workflow for PH Calculations.” <i>Chemie Ingenieur Technik</i>, vol. 95, no. 12,
    2023, pp. 1960–69, <a href="https://doi.org/10.1002/cite.202300082">https://doi.org/10.1002/cite.202300082</a>.
  short: P. Kosse, T. Hernández Rodriguez, B. Frahm, M. Lübken, M. Wichern, Chemie
    Ingenieur Technik 95 (2023) 1960–1969.
  ufg: '<b>Kosse, Pascal u. a.</b>: Validation and Uncertainty Assessment of a Software‐Integrated
    Workflow for pH Calculations, in: <i>Chemie Ingenieur Technik</i> 95 (2023), H.
    12,  S. 1960–1969.'
  van: Kosse P, Hernández Rodriguez T, Frahm B, Lübken M, Wichern M. Validation and
    Uncertainty Assessment of a Software‐Integrated Workflow for pH Calculations.
    Chemie Ingenieur Technik. 2023;95(12):1960–9.
date_created: 2024-04-26T06:52:48Z
date_updated: 2025-06-26T07:50:29Z
department:
- _id: DEP4000
doi: 10.1002/cite.202300082
external_id:
  isi:
  - '001073579300001'
intvolume: '        95'
isi: '1'
issue: '12'
keyword:
- Acid-base equilibria
- Carboxylic acids
- Dissociation constants
- pH calculation software
- Uncertainty assessment
language:
- iso: eng
page: 1960-1969
place: Weinheim
publication: Chemie Ingenieur Technik
publication_identifier:
  eissn:
  - 1522-2640
  issn:
  - 0009-286X
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Validation and Uncertainty Assessment of a Software‐Integrated Workflow for
  pH Calculations
type: scientific_journal_article
user_id: '83781'
volume: 95
year: '2023'
...
---
_id: '10010'
abstract:
- lang: eng
  text: During product development, the customer or internal stakeholders initiate
    changes concerning the components or functions of a cyber-physical system (CPS).
    The complexity of such a CPS causes difficulties in evaluating the effects of
    a component change. Accordingly, product developers need an assistance system
    to quantify the impact of a component change on hardware, software, system functions,
    and production processes. Therefore, this paper focuses on concepts to evaluate
    the effects of component, functional, and process changes and contributes to its
    clarification and further understanding of the importance and requirements for
    such an assistance system. The literature review assesses the identified methods
    regarding their objectives, application objects, level of automation, and relations
    characteristics. However, the literature review pointed out that the change prediction
    method from Clarkson et al. (2004) is well-established in the literature and able
    to quantify the impact of a change.
author:
- first_name: Viktoria
  full_name: Mordaschew, Viktoria
  id: '79005'
  last_name: Mordaschew
- first_name: Jan-Phillip
  full_name: Herrmann, Jan-Phillip
  id: '75846'
  last_name: Herrmann
- first_name: Sven
  full_name: Tackenberg, Sven
  id: '71470'
  last_name: Tackenberg
citation:
  ama: 'Mordaschew V, Herrmann JP, Tackenberg S. <i>METHODS OF CHANGE IMPACT ANALYSIS
    FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE</i>. Cambridge
    University Press; 2023:2655-2664. doi:<a href="https://doi.org/10.1017/pds.2023.266
    ">https://doi.org/10.1017/pds.2023.266 </a>'
  apa: 'Mordaschew, V., Herrmann, J.-P., &#38; Tackenberg, S. (2023). METHODS OF CHANGE
    IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE.
    In <i>Proceedings of the International Conference onEngineering Design (ICED23)</i>
    (pp. 2655–2664). Cambridge University Press. <a href="https://doi.org/10.1017/pds.2023.266
    ">https://doi.org/10.1017/pds.2023.266 </a>'
  bjps: '<b>Mordaschew V, Herrmann J-P and Tackenberg S</b> (2023) <i>METHODS OF CHANGE
    IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE</i>.
    Cambridge: Cambridge University Press.'
  chicago: 'Mordaschew, Viktoria, Jan-Phillip Herrmann, and Sven Tackenberg. <i>METHODS
    OF CHANGE IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE
    LITERATURE</i>. <i>Proceedings of the International Conference OnEngineering Design
    (ICED23)</i>. Cambridge: Cambridge University Press, 2023. <a href="https://doi.org/10.1017/pds.2023.266
    ">https://doi.org/10.1017/pds.2023.266 </a>.'
  chicago-de: 'Mordaschew, Viktoria, Jan-Phillip Herrmann und Sven Tackenberg. 2023.
    <i>METHODS OF CHANGE IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW
    OF THE LITERATURE</i>. <i>Proceedings of the International Conference onEngineering
    Design (ICED23)</i>. Cambridge: Cambridge University Press. doi:<a href="https://doi.org/10.1017/pds.2023.266
    ">https://doi.org/10.1017/pds.2023.266 </a>, .'
  din1505-2-1: '<span style="font-variant:small-caps;">Mordaschew, Viktoria</span>
    ; <span style="font-variant:small-caps;">Herrmann, Jan-Phillip</span> ; <span
    style="font-variant:small-caps;">Tackenberg, Sven</span>: <i>METHODS OF CHANGE
    IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE</i>.
    Cambridge : Cambridge University Press, 2023'
  havard: 'V. Mordaschew, J.-P. Herrmann, S. Tackenberg, METHODS OF CHANGE IMPACT
    ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE, Cambridge
    University Press, Cambridge, 2023.'
  ieee: 'V. Mordaschew, J.-P. Herrmann, and S. Tackenberg, <i>METHODS OF CHANGE IMPACT
    ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE</i>. Cambridge:
    Cambridge University Press, 2023, pp. 2655–2664. doi: <a href="https://doi.org/10.1017/pds.2023.266
    ">https://doi.org/10.1017/pds.2023.266 </a>.'
  mla: 'Mordaschew, Viktoria, et al. “METHODS OF CHANGE IMPACT ANALYSIS FOR PRODUCT
    DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE.” <i>Proceedings of the International
    Conference OnEngineering Design (ICED23)</i>, Cambridge University Press, 2023,
    pp. 2655–64, <a href="https://doi.org/10.1017/pds.2023.266 ">https://doi.org/10.1017/pds.2023.266
    </a>.'
  short: 'V. Mordaschew, J.-P. Herrmann, S. Tackenberg, METHODS OF CHANGE IMPACT ANALYSIS
    FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE, Cambridge University
    Press, Cambridge, 2023.'
  ufg: '<b>Mordaschew, Viktoria/Herrmann, Jan-Phillip/Tackenberg, Sven</b>: METHODS
    OF CHANGE IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE
    LITERATURE, Cambridge 2023.'
  van: 'Mordaschew V, Herrmann JP, Tackenberg S. METHODS OF CHANGE IMPACT ANALYSIS
    FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW OF THE LITERATURE. Proceedings of
    the International Conference onEngineering Design (ICED23). Cambridge: Cambridge
    University Press; 2023.'
conference:
  end_date: 2023-07-28
  location: Bordeaux, Frankreich
  name: 24th International Conference on Engineering Design (ICED 2023)
  start_date: 2023-07-24
date_created: 2023-06-26T10:58:11Z
date_updated: 2023-06-29T12:49:02Z
doi: 'https://doi.org/10.1017/pds.2023.266 '
keyword:
- Product Lifecycle Management (PLM)
- Change Impact
- Complexity
- Uncertainty
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.cambridge.org/core/journals/proceedings-of-the-design-society/article/methods-of-change-impact-analysis-for-product-development-a-systematic-review-of-the-literature/F33BF904B25755EF60388FB7A6A3BAAF
oa: '1'
page: 2655-2664
place: Cambridge
publication: Proceedings of the International Conference onEngineering Design (ICED23)
publication_identifier:
  eissn:
  - '2732-527X '
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
status: public
title: 'METHODS OF CHANGE IMPACT ANALYSIS FOR PRODUCT DEVELOPMENT: A SYSTEMATIC REVIEW
  OF THE LITERATURE'
type: conference_editor_article
user_id: '15514'
year: '2023'
...
---
_id: '11376'
abstract:
- lang: eng
  text: <jats:p>concentration is an important objective. The phenotype of the cells
    in a reactor plays an important role. Are clonal cell populations showing high
    cell-specific growth rates more favorable than cell lines with higher cell-specific
    productivities or vice versa? Five clonal Chinese hamster ovary cell populations
    were analyzed based on the data of a 3-month-stability study. We adapted a mechanistic
    cell culture model to the experimental data of one such clonally derived cell
    population. Uncertainties and prior knowledge concerning model parameters were
    considered using Bayesian parameter estimations. This model was used then to define
    an inoculum train protocol. Based on this, we subsequently simulated the impacts
    of differences in growth rates (±10%) and production rates (±10% and ±50%) on
    the overall cultivation time, including making the inoculum train cultures; the
    final production phase, the volumetric titer in that bioreactor and the ratio
    of both, defined as overall process productivity. We showed thus unequivocally
    that growth rates have a higher impact (up to three times) on overall process
    productivity and for product output per year, whereas cells with higher productivity
    can potentially generate higher product concentrations in the production vessel.
article_number: '964'
author:
- first_name: Tanja
  full_name: Hernández Rodriguez, Tanja
  id: '52466'
  last_name: Hernández Rodriguez
- first_name: Sophie
  full_name: Morerod, Sophie
  last_name: Morerod
- first_name: Ralf
  full_name: Pörtner, Ralf
  last_name: Pörtner
- first_name: Florian M.
  full_name: Wurm, Florian M.
  last_name: Wurm
- first_name: Björn
  full_name: Frahm, Björn
  id: '45666'
  last_name: Frahm
citation:
  ama: Hernández Rodriguez T, Morerod S, Pörtner R, Wurm FM, Frahm B. Considerations
    of the Impacts of Cell-Specific Growth and Production Rate on Clone Selection—A
    Simulation Study. <i>Processes</i>. 2021;9(6). doi:<a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>
  apa: Hernández Rodriguez, T., Morerod, S., Pörtner, R., Wurm, F. M., &#38; Frahm,
    B. (2021). Considerations of the Impacts of Cell-Specific Growth and Production
    Rate on Clone Selection—A Simulation Study. <i>Processes</i>, <i>9</i>(6), Article
    964. <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>
  bjps: <b>Hernández Rodriguez T <i>et al.</i></b> (2021) Considerations of the Impacts
    of Cell-Specific Growth and Production Rate on Clone Selection—A Simulation Study.
    <i>Processes</i> <b>9</b>.
  chicago: Hernández Rodriguez, Tanja, Sophie Morerod, Ralf Pörtner, Florian M. Wurm,
    and Björn Frahm. “Considerations of the Impacts of Cell-Specific Growth and Production
    Rate on Clone Selection—A Simulation Study.” <i>Processes</i> 9, no. 6 (2021).
    <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>.
  chicago-de: Hernández Rodriguez, Tanja, Sophie Morerod, Ralf Pörtner, Florian M.
    Wurm und Björn Frahm. 2021. Considerations of the Impacts of Cell-Specific Growth
    and Production Rate on Clone Selection—A Simulation Study. <i>Processes</i> 9,
    Nr. 6. doi:<a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>,
    .
  din1505-2-1: '<span style="font-variant:small-caps;">Hernández Rodriguez, Tanja</span>
    ; <span style="font-variant:small-caps;">Morerod, Sophie</span> ; <span style="font-variant:small-caps;">Pörtner,
    Ralf</span> ; <span style="font-variant:small-caps;">Wurm, Florian M.</span> ;
    <span style="font-variant:small-caps;">Frahm, Björn</span>: Considerations of
    the Impacts of Cell-Specific Growth and Production Rate on Clone Selection—A Simulation
    Study. In: <i>Processes</i> Bd. 9. Basel, MDPI AG (2021), Nr. 6'
  havard: T. Hernández Rodriguez, S. Morerod, R. Pörtner, F.M. Wurm, B. Frahm, Considerations
    of the Impacts of Cell-Specific Growth and Production Rate on Clone Selection—A
    Simulation Study, Processes. 9 (2021).
  ieee: 'T. Hernández Rodriguez, S. Morerod, R. Pörtner, F. M. Wurm, and B. Frahm,
    “Considerations of the Impacts of Cell-Specific Growth and Production Rate on
    Clone Selection—A Simulation Study,” <i>Processes</i>, vol. 9, no. 6, Art. no.
    964, 2021, doi: <a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>.'
  mla: Hernández Rodriguez, Tanja, et al. “Considerations of the Impacts of Cell-Specific
    Growth and Production Rate on Clone Selection—A Simulation Study.” <i>Processes</i>,
    vol. 9, no. 6, 964, 2021, <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>.
  short: T. Hernández Rodriguez, S. Morerod, R. Pörtner, F.M. Wurm, B. Frahm, Processes
    9 (2021).
  ufg: '<b>Hernández Rodriguez, Tanja u. a.</b>: Considerations of the Impacts of
    Cell-Specific Growth and Production Rate on Clone Selection—A Simulation Study,
    in: <i>Processes</i> 9 (2021), H. 6.'
  van: Hernández Rodriguez T, Morerod S, Pörtner R, Wurm FM, Frahm B. Considerations
    of the Impacts of Cell-Specific Growth and Production Rate on Clone Selection—A
    Simulation Study. Processes. 2021;9(6).
date_created: 2024-04-25T13:34:26Z
date_updated: 2024-05-21T09:29:02Z
department:
- _id: DEP4000
doi: 10.3390/pr9060964
intvolume: '         9'
issue: '6'
keyword:
- clonal cell population
- phenotypic diversity
- inoculum train
- uncertainty-based
- cell culture model
- biopharmaceutical manufacturing
language:
- iso: eng
place: Basel
publication: Processes
publication_identifier:
  eissn:
  - 2227-9717
publication_status: published
publisher: MDPI AG
status: public
title: Considerations of the Impacts of Cell-Specific Growth and Production Rate on
  Clone Selection—A Simulation Study
type: scientific_journal_article
user_id: '83781'
volume: 9
year: '2021'
...
---
_id: '7983'
abstract:
- lang: eng
  text: For the manufacturing of complex biopharmaceuticals using bioreactors with
    cultivated mammalian cells, high product concentration is an important objective.
    The phenotype of the cells in a reactor plays an important role. Are clonal cell
    populations showing high cell-specific growth rates more favorable than cell lines
    with higher cell-specific productivities or vice versa? Five clonal Chinese hamster
    ovary cell populations were analyzed based on the data of a 3-month-stability
    study. We adapted a mechanistic cell culture model to the experimental data of
    one such clonally derived cell population. Uncertainties and prior knowledge concerning
    model parameters were considered using Bayesian parameter estimations. This model
    was used then to define an inoculum train protocol. Based on this, we subsequently
    simulated the impacts of differences in growth rates (±10%) and production rates
    (±10% and ±50%) on the overall cultivation time, including making the inoculum
    train cultures; the final production phase, the volumetric titer in that bioreactor
    and the ratio of both, defined as overall process productivity. We showed thus
    unequivocally that growth rates have a higher impact (up to three times) on overall
    process productivity and for product output per year, whereas cells with higher
    productivity can potentially generate higher product concentrations in the production
    vessel.
author:
- first_name: Tanja
  full_name: Hernández Rodriguez, Tanja
  id: '52466'
  last_name: Hernández Rodriguez
- first_name: Sophie
  full_name: Morerod, Sophie
  last_name: Morerod
- first_name: Ralf
  full_name: Pörtner, Ralf
  last_name: Pörtner
- first_name: Florian M.
  full_name: Wurm, Florian M.
  last_name: Wurm
- first_name: Björn
  full_name: Frahm, Björn
  id: '45666'
  last_name: Frahm
citation:
  ama: 'Hernández Rodriguez T, Morerod S, Pörtner R, Wurm FM, Frahm B. Considerations
    of the impacts of cell-specific growth and production rate on clone selection
    – a simulation study. In: <i>Bioprocess Systems Engineering Applications in Pharmaceutical
    Manufacturing</i>. Vol special issue. Processes : open access journal . MDPI;
    2021:49-74. doi:<a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>'
  apa: 'Hernández Rodriguez, T., Morerod, S., Pörtner, R., Wurm, F. M., &#38; Frahm,
    B. (2021). Considerations of the impacts of cell-specific growth and production
    rate on clone selection – a simulation study. In <i>Bioprocess Systems Engineering
    Applications in Pharmaceutical Manufacturing: Vol. special issue</i> (pp. 49–74).
    MDPI. <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>'
  bjps: '<b>Hernández Rodriguez T <i>et al.</i></b> (2021) Considerations of the Impacts
    of Cell-Specific Growth and Production Rate on Clone Selection – a Simulation
    Study. <i>Bioprocess Systems Engineering Applications in Pharmaceutical Manufacturing</i>,
    vol. special issue. Basel: MDPI, pp. 49–74.'
  chicago: 'Hernández Rodriguez, Tanja, Sophie Morerod, Ralf Pörtner, Florian M. Wurm,
    and Björn Frahm. “Considerations of the Impacts of Cell-Specific Growth and Production
    Rate on Clone Selection – a Simulation Study.” In <i>Bioprocess Systems Engineering
    Applications in Pharmaceutical Manufacturing</i>, special issue:49–74. Processes :
    Open Access Journal . Basel: MDPI, 2021. <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>.'
  chicago-de: 'Hernández Rodriguez, Tanja, Sophie Morerod, Ralf Pörtner, Florian M.
    Wurm und Björn Frahm. 2021. Considerations of the impacts of cell-specific growth
    and production rate on clone selection – a simulation study. In: <i>Bioprocess
    Systems Engineering Applications in Pharmaceutical Manufacturing</i>, special
    issue:49–74. Processes : open access journal . Basel: MDPI. doi:<a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Hernández Rodriguez, Tanja</span>
    ; <span style="font-variant:small-caps;">Morerod, Sophie</span> ; <span style="font-variant:small-caps;">Pörtner,
    Ralf</span> ; <span style="font-variant:small-caps;">Wurm, Florian M.</span> ;
    <span style="font-variant:small-caps;">Frahm, Björn</span>: Considerations of
    the impacts of cell-specific growth and production rate on clone selection – a
    simulation study. In: <i>Bioprocess Systems Engineering Applications in Pharmaceutical
    Manufacturing</i>, <i>Processes : open access journal </i>. Bd. special issue.
    Basel : MDPI, 2021, S. 49–74'
  havard: 'T. Hernández Rodriguez, S. Morerod, R. Pörtner, F.M. Wurm, B. Frahm, Considerations
    of the impacts of cell-specific growth and production rate on clone selection
    – a simulation study, in: Bioprocess Systems Engineering Applications in Pharmaceutical
    Manufacturing, MDPI, Basel, 2021: pp. 49–74.'
  ieee: 'T. Hernández Rodriguez, S. Morerod, R. Pörtner, F. M. Wurm, and B. Frahm,
    “Considerations of the impacts of cell-specific growth and production rate on
    clone selection – a simulation study,” in <i>Bioprocess Systems Engineering Applications
    in Pharmaceutical Manufacturing</i>, vol. special issue, Basel: MDPI, 2021, pp.
    49–74. doi: <a href="https://doi.org/10.3390/pr9060964">10.3390/pr9060964</a>.'
  mla: Hernández Rodriguez, Tanja, et al. “Considerations of the Impacts of Cell-Specific
    Growth and Production Rate on Clone Selection – a Simulation Study.” <i>Bioprocess
    Systems Engineering Applications in Pharmaceutical Manufacturing</i>, vol. special
    issue, MDPI, 2021, pp. 49–74, <a href="https://doi.org/10.3390/pr9060964">https://doi.org/10.3390/pr9060964</a>.
  short: 'T. Hernández Rodriguez, S. Morerod, R. Pörtner, F.M. Wurm, B. Frahm, in:
    Bioprocess Systems Engineering Applications in Pharmaceutical Manufacturing, MDPI,
    Basel, 2021, pp. 49–74.'
  ufg: '<b>Hernández Rodriguez, Tanja u. a.</b>: Considerations of the impacts of
    cell-specific growth and production rate on clone selection – a simulation study,
    in: o. Hg.: Bioprocess Systems Engineering Applications in Pharmaceutical Manufacturing,
    Band <i>special issue</i>, Basel 2021 (Processes : open access journal ),  S.
    49–74.'
  van: 'Hernández Rodriguez T, Morerod S, Pörtner R, Wurm FM, Frahm B. Considerations
    of the impacts of cell-specific growth and production rate on clone selection
    – a simulation study. In: Bioprocess Systems Engineering Applications in Pharmaceutical
    Manufacturing. Basel: MDPI; 2021. p. 49–74. (Processes : open access journal ;
    vol. special issue).'
date_created: 2022-05-05T12:55:52Z
date_updated: 2023-08-16T09:17:50Z
department:
- _id: DEP4021
doi: 10.3390/pr9060964
keyword:
- clonal cell population
- phenotypic diversity
- inoculum train
- uncertainty-based
- cell culture model
- biopharmaceutical manufacturing
language:
- iso: eng
page: 49-74
place: Basel
publication: Bioprocess Systems Engineering Applications in Pharmaceutical Manufacturing
publication_identifier:
  eisbn:
  - 978-3-0365-5209-5
  isbn:
  - 978-3-0365-5210-1
  issn:
  - '2227-9717 '
publication_status: published
publisher: MDPI
quality_controlled: '1'
series_title: 'Processes : open access journal '
status: public
title: Considerations of the impacts of cell-specific growth and production rate on
  clone selection – a simulation study
type: book_chapter
user_id: '83781'
volume: special issue
year: '2021'
...
---
_id: '3349'
abstract:
- lang: eng
  text: "Model-based concepts and simulation techniques in combination with digital
    tools emerge as a key to explore the full potential of biopharmaceutical production
    processes, which contain several challenging development and process steps. One
    of these steps is the time- and cost-intensive cell proliferation process (also
    called seed train) to increase cell number from cell thawing up to production
    scale. Challenges like complex cell metabolism, batch-to-batch variation, variabilities
    in cell behavior, and influences of changes in cultivation conditions necessitate
    adequate digital solutions to provide information about the current and near future
    process state to derive correct process decisions.\r\nFor this purpose digital
    seed train twins have proved to be efficient, which digitally display the time-dependent
    behavior of important process variables based on mathematical models, strategies,
    and adaption procedures.\r\nThis chapter will outline the needs for digitalization
    of seed trains, the construction of a digital seed train twin, the role of parameter
    estimation, and different statistical methods within this context, which are applicable
    to several problems in the field of bioprocessing. The results of a case study
    are presented to illustrate a Bayesian approach for parameter estimation and prediction
    of an industrial cell culture seed train for seed train digitalization."
author:
- first_name: Tanja
  full_name: Hernández Rodriguez, Tanja
  id: '52466'
  last_name: Hernández Rodriguez
- first_name: Björn
  full_name: Frahm, Björn
  id: '45666'
  last_name: Frahm
citation:
  ama: 'Hernández Rodriguez T, Frahm B. Digital Seed Train Twins and Statistical Methods.
    In: Herwig C, Pörtner R, Möller J, eds. <i>Digital Twins Tools and Concepts for
    Smart Biomanufacturing</i>. Vol 176. Advances in Biochemical Engineering/Biotechnology.
    Springer; 2021:97-131. doi:<a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>'
  apa: Hernández Rodriguez, T., &#38; Frahm, B. (2021). Digital Seed Train Twins and
    Statistical Methods. In C. Herwig, R. Pörtner, &#38; J. Möller (Eds.), <i>Digital
    Twins Tools and Concepts for Smart Biomanufacturing</i> (Vol. 176, pp. 97–131).
    Springer. <a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>
  bjps: '<b>Hernández Rodriguez T and Frahm B</b> (2021) Digital Seed Train Twins
    and Statistical Methods. In Herwig C, Pörtner R and Möller J (eds), <i>Digital
    Twins Tools and Concepts for Smart Biomanufacturing</i>, vol. 176. Berlin, Heidelberg:
    Springer, pp. 97–131.'
  chicago: 'Hernández Rodriguez, Tanja, and Björn Frahm. “Digital Seed Train Twins
    and Statistical Methods.” In <i>Digital Twins Tools and Concepts for Smart Biomanufacturing</i>,
    edited by Christoph  Herwig, Ralf  Pörtner, and Johannes  Möller, 176:97–131.
    Advances in Biochemical Engineering/Biotechnology. Berlin, Heidelberg: Springer,
    2021. <a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>.'
  chicago-de: 'Hernández Rodriguez, Tanja und Björn Frahm. 2021. Digital Seed Train
    Twins and Statistical Methods. In: <i>Digital Twins Tools and Concepts for Smart
    Biomanufacturing</i>, hg. von Christoph  Herwig, Ralf  Pörtner, und Johannes  Möller,
    176:97–131. Advances in Biochemical Engineering/Biotechnology. Berlin, Heidelberg:
    Springer. doi:<a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Hernández Rodriguez, Tanja</span>
    ; <span style="font-variant:small-caps;">Frahm, Björn</span>: Digital Seed Train
    Twins and Statistical Methods. In: <span style="font-variant:small-caps;">Herwig,
    C.</span> ; <span style="font-variant:small-caps;">Pörtner, R.</span> ; <span
    style="font-variant:small-caps;">Möller, J.</span> (Hrsg.): <i>Digital Twins Tools
    and Concepts for Smart Biomanufacturing</i>, <i>Advances in Biochemical Engineering/Biotechnology</i>.
    Bd. 176. Berlin, Heidelberg : Springer, 2021, S. 97–131'
  havard: 'T. Hernández Rodriguez, B. Frahm, Digital Seed Train Twins and Statistical
    Methods, in: C. Herwig, R. Pörtner, J. Möller (Eds.), Digital Twins Tools and
    Concepts for Smart Biomanufacturing, Springer, Berlin, Heidelberg, 2021: pp. 97–131.'
  ieee: 'T. Hernández Rodriguez and B. Frahm, “Digital Seed Train Twins and Statistical
    Methods,” in <i>Digital Twins Tools and Concepts for Smart Biomanufacturing</i>,
    vol. 176, C. Herwig, R. Pörtner, and J. Möller, Eds. Berlin, Heidelberg: Springer,
    2021, pp. 97–131. doi: <a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>.'
  mla: Hernández Rodriguez, Tanja, and Björn Frahm. “Digital Seed Train Twins and
    Statistical Methods.” <i>Digital Twins Tools and Concepts for Smart Biomanufacturing</i>,
    edited by Christoph  Herwig et al., vol. 176, Springer, 2021, pp. 97–131, <a href="https://doi.org/10.1007/10_2020_137">https://doi.org/10.1007/10_2020_137</a>.
  short: 'T. Hernández Rodriguez, B. Frahm, in: C. Herwig, R. Pörtner, J. Möller (Eds.),
    Digital Twins Tools and Concepts for Smart Biomanufacturing, Springer, Berlin,
    Heidelberg, 2021, pp. 97–131.'
  ufg: '<b>Hernández Rodriguez, Tanja/Frahm, Björn</b>: Digital Seed Train Twins and
    Statistical Methods, in: <i>Herwig, Christoph/Pörtner, Ralf/Möller, Johannes (Hgg.)</i>:
    Digital Twins Tools and Concepts for Smart Biomanufacturing, Bd. 176, Berlin,
    Heidelberg 2021 (Advances in Biochemical Engineering/Biotechnology),  S. 97–131.'
  van: 'Hernández Rodriguez T, Frahm B. Digital Seed Train Twins and Statistical Methods.
    In: Herwig C, Pörtner R, Möller J, editors. Digital Twins Tools and Concepts for
    Smart Biomanufacturing. Berlin, Heidelberg: Springer; 2021. p. 97–131. (Advances
    in Biochemical Engineering/Biotechnology; vol. 176).'
date_created: 2020-08-19T07:14:11Z
date_updated: 2023-08-16T06:48:35Z
department:
- _id: DEP4021
doi: https://doi.org/10.1007/10_2020_137
editor:
- first_name: 'Christoph '
  full_name: 'Herwig, Christoph '
  last_name: Herwig
- first_name: 'Ralf '
  full_name: 'Pörtner, Ralf '
  last_name: Pörtner
- first_name: 'Johannes '
  full_name: 'Möller, Johannes '
  last_name: Möller
intvolume: '       176'
keyword:
- Bayes
- Digital twin
- Parameter estimation
- Seed train
- Uncertainty
language:
- iso: eng
page: 97–131
place: Berlin, Heidelberg
publication: Digital Twins Tools and Concepts for Smart Biomanufacturing
publication_identifier:
  eisbn:
  - 978-3-030-71660-8
  eissn:
  - 1616-8542
  isbn:
  - 978-3-030-71659-2
  issn:
  - 0724-6145
publication_status: published
publisher: Springer
quality_controlled: '1'
series_title: Advances in Biochemical Engineering/Biotechnology
status: public
title: Digital Seed Train Twins and Statistical Methods
type: book_chapter
user_id: '83781'
volume: 176
year: '2021'
...
