Study on the conversion of wool keratin by steam explosion

Claudio Tonin, Marina Zoccola, Annalisa Aluigi, Alessio Varesano, Alessio Montarsolo, Claudia Vineis, Francesco Zimbardi

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Abstract

A wool fiber sample was submitted to chemical-free steam explosion in view of potential exploitation of keratin-based industrial and farm wastes. Fiber keratin was converted into a dark-yellow sludge that was submitted to phase separation by filtration, centrifugation, and precipitation of the soluble materials from the supernatant liquid. The resulting products, when compared with the original wool, showed the extent of disruption of the histology structure, reduction of the molecular weight to water-soluble peptides and free amino acids, and change of the structure of the remainder of the protein associated with breaking of disulfide bonds and decomposition of the high-sulfur-content protein fraction. © 2006 American Chemical Society.
Original languageEnglish
Pages (from-to)3499 - 3504
Number of pages6
JournalBiomacromolecules
Volume7
Issue number12
DOIs
Publication statusPublished - Dec 2006

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All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Tonin, C., Zoccola, M., Aluigi, A., Varesano, A., Montarsolo, A., Vineis, C., & Zimbardi, F. (2006). Study on the conversion of wool keratin by steam explosion. Biomacromolecules, 7(12), 3499 - 3504. https://doi.org/10.1021/bm060597w