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Related Experiment Video

Updated: Jul 7, 2026

Recombinant Collagen I Peptide Microcarriers for Cell Expansion and Their Potential Use As Cell Delivery System in a Bioreactor Model
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Edible Sulfonated Soy Protein Microcarriers for Cultivated Meat Cell Expansion.

Andrea C Filler1,2, Alex S Kermani1,3, Aurora Duan1

  • 1Department of Orthopaedic Surgery, UC Davis Health, Sacramento, California, USA.

Journal of Biomedical Materials Research. Part A
|July 6, 2026
PubMed
Summary
This summary is machine-generated.

Edible soy microcarriers were created by sulfonation, enhancing cell adhesion and growth factor binding for cultivated meat applications. This innovation simplifies cell expansion and offers potential nutritional benefits.

Keywords:
cultivated meatmicrocarriersmyoblastssoy protein isolatesulfonation

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Published on: September 25, 2016

Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Food Science

Background:

  • Microcarriers are crucial for large-scale cell expansion, but current options are non-edible, necessitating extra steps.
  • Edible microcarriers could reduce costs and add nutritional value to cell-based products.
  • Substrate properties significantly impact muscle cell behavior.

Purpose of the Study:

  • To develop edible, functionalized soy microcarriers for cell expansion.
  • To investigate the impact of sulfonation on soy protein isolate (sSPI) properties and functionality.
  • To evaluate the performance of these microcarriers in supporting satellite cell proliferation and growth factor retention.

Main Methods:

  • Soy protein isolate (sSPI) was sulfonated to create functionalized microcarriers.
  • Myoblast adhesion was assessed on sulfonated and non-sulfonated soy substrates.
  • Basic fibroblast growth factor (bFGF) adsorption capacity was measured.
  • Primary bovine satellite cell proliferation was evaluated on the developed microcarriers over 5 days.

Main Results:

  • Sulfonation controllably introduced sulfonate groups, enhancing sSPI conductivity and water uptake.
  • Cell adhesion was mediated by integrin β1 on both sulfonated and non-sulfonated soy substrates.
  • Sulfonated soy microcarriers adsorbed 17-fold more bFGF than non-sulfonated ones.
  • Proliferation of bovine satellite cells was accelerated at early timepoints on sulfonated soy microcarriers.

Conclusions:

  • Sulfonation transforms soy protein into a functionalized substrate for edible microcarriers.
  • These microcarriers effectively support satellite cell expansion and enhance growth factor retention.
  • The developed edible microcarriers offer a promising solution for cultivated meat production and other cell-based applications.