Structuring of biopolymer products - Processing of dense biopolymer systems - Spinning

3 important questions on Structuring of biopolymer products - Processing of dense biopolymer systems - Spinning

How are fibres formed with wet spinning?

Fibres are formed when the protein dispersion, often soy, is forced through a spinneret with many small holes into an acidic bath.
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How are fibres formed with dry spinning?

Very thin protein fibres are formed. The protein solution can be solidified after elongation through solvent evaporation or by cross-linking the proteins.
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Why is spinning not used industrially?

  • High costs
  • Large waste streams (water)
  • High protein loss
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