Egg yolk as a model for gelation: from rheometry to flow physics

Fuente: arXiv
Guardado en:
Detalles Bibliográficos
Autores principales: Marsh, Maxwell, Hossain, Mohammad Tanver, Ewoldt, Randy
Formato: Preprint
Publicado: 2025
Materias:
Acceso en línea:
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
_version_ 1866912315562000384
author Marsh, Maxwell
Hossain, Mohammad Tanver
Ewoldt, Randy
author_facet Marsh, Maxwell
Hossain, Mohammad Tanver
Ewoldt, Randy
contents Egg yolks are an excellent model for studying sol-gel transitions, particularly the power law viscoelasticity that defines the critical point of gelation. However, prior studies lack comprehensive datasets and fail to visualize flow behavior linked to temperature and time-dependent linear and nonlinear rheology. Here we present a detailed dataset characterizing egg yolk viscoelasticity across temperature, time, and forcing amplitude using oscillatory shear, step strain, step stress, and constant high strain rate. Novel protorheology visualizations link rheological properties with observable flow behavior. Our findings highlight the nuanced determination of the critical gel point, emphasizing observation timescale dependencies. We compare methods to identify critical temperatures for gelation, including power law viscoelasticity, moduli crossover, diverging zero-shear viscosity, and emerging equilibrium elastic modulus, while visualizing flow consequences near these transitions. Egg yolk is an accessible non-toxic material relevant to the physicist and the chef alike, making it ideal for understanding the rheology of critical gels. By integrating protorheology photos and videos with rigorous rheometric data, we deepen the understanding of critical gels, with broader impacts for teaching and modeling sol-gel transitions.
format Preprint
id arxiv_https___arxiv_org_abs_2502_10952
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Egg yolk as a model for gelation: from rheometry to flow physics
Marsh, Maxwell
Hossain, Mohammad Tanver
Ewoldt, Randy
Soft Condensed Matter
Egg yolks are an excellent model for studying sol-gel transitions, particularly the power law viscoelasticity that defines the critical point of gelation. However, prior studies lack comprehensive datasets and fail to visualize flow behavior linked to temperature and time-dependent linear and nonlinear rheology. Here we present a detailed dataset characterizing egg yolk viscoelasticity across temperature, time, and forcing amplitude using oscillatory shear, step strain, step stress, and constant high strain rate. Novel protorheology visualizations link rheological properties with observable flow behavior. Our findings highlight the nuanced determination of the critical gel point, emphasizing observation timescale dependencies. We compare methods to identify critical temperatures for gelation, including power law viscoelasticity, moduli crossover, diverging zero-shear viscosity, and emerging equilibrium elastic modulus, while visualizing flow consequences near these transitions. Egg yolk is an accessible non-toxic material relevant to the physicist and the chef alike, making it ideal for understanding the rheology of critical gels. By integrating protorheology photos and videos with rigorous rheometric data, we deepen the understanding of critical gels, with broader impacts for teaching and modeling sol-gel transitions.
title Egg yolk as a model for gelation: from rheometry to flow physics
topic Soft Condensed Matter
url https://arxiv.org/abs/2502.10952