---
_id: '11608'
abstract:
- lang: eng
  text: The handling of beer-yeast suspensions (BYS) occurs in several brewery processes
    , as in  pitching, propagation or beer recovery. Highly concentrated BYS do not
    behave like a shear thinning fluid but like a dilatant fluid. Above a solid content
    >18% shear stress, as generated turbulences or wall friction increases the dynamic
    viscosity of the fluid. It is precisely here that influencing factors that have
    received little attention as the effect of different cell sizes to date can make
    themselves felt. Even if there is only one yeast strain used in a brewery different
    cell sizes can occur when there are different osmotic pressures, induced by sugar
    and alcohol concentration. In this work, the cell size distributions of a Saccharomyces
    strain were artificially varied and measured. Rheological studies were then carried
    out on these BYS. Results show that increasing mean cell diameters (sauter diameter)
    lead to a change in the rheological behavior. It is assumed that cell sizes are
    also relevant to processing in practice, especially where high concentrations
    are achieved. Especially for handling these highly concentrated BYS with high
    shear pumps or agitators it is therefore important to know the relationship between
    the mean cell diameter and the either shear thinning or shear thickening rheological
    behavior, because even with the same yeast concentration both rheological behaviors
    can occur.
author:
- first_name: Marc
  full_name: Trilling-Haasler, Marc
  id: '81622'
  last_name: Trilling-Haasler
  orcid: 0000-0002-3685-6383
- first_name: Simon-Elias
  full_name: Jürgensmeier, Simon-Elias
  last_name: Jürgensmeier
- first_name: Jan
  full_name: Schneider, Jan
  id: '13209'
  last_name: Schneider
  orcid: 0000-0001-6401-8873
citation:
  ama: Trilling-Haasler M, Jürgensmeier SE, Schneider J. <i>Influence of Osmotic Pressure
    Induced Yeast Particle Size on the Rheological Properties of Beer-Yeast-Suspensions</i>.;
    2024.
  apa: Trilling-Haasler, M., Jürgensmeier, S.-E., &#38; Schneider, J. (2024). <i>Influence
    of osmotic pressure induced yeast particle size on the rheological properties
    of beer-yeast-suspensions</i>. 39th EBC Congress 2024, Lille.
  bjps: <b>Trilling-Haasler M, Jürgensmeier S-E and Schneider J</b> (2024) <i>Influence
    of Osmotic Pressure Induced Yeast Particle Size on the Rheological Properties
    of Beer-Yeast-Suspensions</i>. .
  chicago: Trilling-Haasler, Marc, Simon-Elias Jürgensmeier, and Jan Schneider. <i>Influence
    of Osmotic Pressure Induced Yeast Particle Size on the Rheological Properties
    of Beer-Yeast-Suspensions</i>, 2024.
  chicago-de: Trilling-Haasler, Marc, Simon-Elias Jürgensmeier und Jan Schneider.
    2024. <i>Influence of osmotic pressure induced yeast particle size on the rheological
    properties of beer-yeast-suspensions</i>.
  din1505-2-1: '<span style="font-variant:small-caps;">Trilling-Haasler, Marc</span>
    ; <span style="font-variant:small-caps;">Jürgensmeier, Simon-Elias</span> ; <span
    style="font-variant:small-caps;">Schneider, Jan</span>: <i>Influence of osmotic
    pressure induced yeast particle size on the rheological properties of beer-yeast-suspensions</i>,
    2024'
  havard: M. Trilling-Haasler, S.-E. Jürgensmeier, J. Schneider, Influence of osmotic
    pressure induced yeast particle size on the rheological properties of beer-yeast-suspensions,
    2024.
  ieee: M. Trilling-Haasler, S.-E. Jürgensmeier, and J. Schneider, <i>Influence of
    osmotic pressure induced yeast particle size on the rheological properties of
    beer-yeast-suspensions</i>. 2024.
  mla: Trilling-Haasler, Marc, et al. <i>Influence of Osmotic Pressure Induced Yeast
    Particle Size on the Rheological Properties of Beer-Yeast-Suspensions</i>. 2024.
  short: M. Trilling-Haasler, S.-E. Jürgensmeier, J. Schneider, Influence of Osmotic
    Pressure Induced Yeast Particle Size on the Rheological Properties of Beer-Yeast-Suspensions,
    2024.
  ufg: '<b>Trilling-Haasler, Marc/Jürgensmeier, Simon-Elias/Schneider, Jan</b>: Influence
    of osmotic pressure induced yeast particle size on the rheological properties
    of beer-yeast-suspensions, o. O. 2024.'
  van: Trilling-Haasler M, Jürgensmeier SE, Schneider J. Influence of osmotic pressure
    induced yeast particle size on the rheological properties of beer-yeast-suspensions.
    2024.
conference:
  end_date: 2024-05-30
  location: Lille
  name: 39th EBC Congress 2024
  start_date: 2024-05-26
date_created: 2024-06-28T13:06:34Z
date_updated: 2025-10-17T18:37:36Z
department:
- _id: DEP4028
- _id: DEP4018
- _id: DEP1308
keyword:
- yeast
- rheology
- cell size
- osmotic pressure
- filtration
language:
- iso: eng
publication_status: published
status: public
title: Influence of osmotic pressure induced yeast particle size on the rheological
  properties of beer-yeast-suspensions
type: conference_poster
user_id: '81304'
year: '2024'
...
