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Related Experiment Video

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A Decellularization Methodology for the Production of a Natural Acellular Intestinal Matrix
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Decellularization: Leveraging a Tissue Engineering Technique for Food Production.

Jordan D Jones1,2,3, Richard Thyden1,2,3, Luke R Perreault3

  • 1Department of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States.

ACS Biomaterials Science & Engineering
|May 1, 2023
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Summary

This study developed a food-safe method to prepare spinach leaf scaffolds for cultured meat. The new protocol uses regulated detergents and omits harsh solvents, yielding viable cell growth for alternative protein products.

Keywords:
cellular agriculturecultured meatdecellularizationlab-grown meatplant decellularizationtissue engineering

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Area of Science:

  • Biomaterials Science
  • Food Science
  • Cell Biology

Background:

  • Plant leaves offer edible, natural scaffolds for cultured meat development.
  • Conventional decellularization uses unsafe chemicals like hexanes and Triton X-100 (TX100).
  • Developing food-grade protocols is crucial for scaling alternative protein production.

Purpose of the Study:

  • To modify decellularization protocols for spinach leaves using food-regulated detergents.
  • To assess the efficacy of a new protocol omitting hexane for cuticle removal.
  • To evaluate the viability of bovine satellite cells cultured on these modified scaffolds.

Main Methods:

  • Spinach leaves were decellularized using sodium dodecyl sulfate followed by TX100 (control) or Polysorbate 20 (PS20).
  • Hexane was omitted in some groups to test the necessity of cuticle removal.
  • DNA content was measured to assess decellularization efficiency.
  • Primary bovine satellite cells (PBSCs) were cultured on the REG scaffolds for 7 days.

Main Results:

  • Decellularization with PS20 yielded similar DNA reduction to TX100.
  • Omitting hexane for cuticle removal did not significantly impact DNA reduction.
  • PBSCs cultured on the REG scaffolds exhibited high viability (approx. 97.4%) after 7 days.

Conclusions:

  • The modified REG protocol is an effective decellularization method for spinach leaves.
  • This protocol aligns with food safety guidelines for cultured meat applications.
  • The REG protocol supports robust cell growth, paving the way for alternative protein products.