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Protein Dynamics in Living Cells01:19

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Author Spotlight: Innovative Use of nsPEF to Boost Peripheral Nerve Regeneration
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Pulsed Electric Fields Effects on Proteins: Extraction, Structural Modification, and Enhancing Enzymatic Activity.

J Marín-Sánchez1, A Berzosa1, I Álvarez1

  • 1Food Technology, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, (Universidad de Zaragoza-CITA), Zaragoza, Spain.

Bioelectricity
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This summary is machine-generated.

Pulsed electric field (PEF) processing offers sustainable food preservation by increasing cell permeability. This review examines PEF

Keywords:
enzymatic activityprotein extractionprotein modificationpulsed electric fields

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Area of Science:

  • Food Science and Technology
  • Biophysics
  • Physical Chemistry

Background:

  • Pulsed electric field (PEF) is an innovative physical method for food processing.
  • PEF technology is characterized by low energy consumption and short processing times.
  • PEF enhances food shelf-life, mass transfer, and food structure modification via cell membrane electroporation.

Purpose of the Study:

  • To critically review the current knowledge on pulsed electric field (PEF)-assisted protein extraction.
  • To evaluate the impact of PEF treatments on protein composition, structure, and functionality.
  • To identify research gaps in understanding PEF's specific mechanisms on proteins.

Main Methods:

  • Literature review of scientific articles on PEF applications in food processing and protein science.
  • Analysis of studies investigating protein extraction and modification under PEF conditions.
  • Synthesis of findings on PEF's effects, differentiating them from thermal and electrochemical impacts.

Main Results:

  • PEF can modify the technological and functional properties of proteins.
  • Electrochemical reactions and Joule heating are potential side effects of PEF that can impact proteins.
  • The specific mechanisms by which PEF affects proteins require further investigation.

Conclusions:

  • PEF is a promising technology for protein extraction and modification in food processing.
  • Understanding the precise mechanisms of PEF on proteins is crucial for optimizing its application.
  • Further research is needed to distinguish PEF's effects from thermal and electrochemical influences.