Proteins derived from the dairy losses and by-products as raw materials for non-food applications

Catarina Costa, Nuno G. Azoia, Lorena Coelho, Ricardo Freixo, Patricia Batista, Manuela Pintado

Research output: Contribution to journalReview articlepeer-review

10 Citations (Scopus)


The disposal of a high volume of waste-containing proteins is becoming increasingly challenging in a society that is aware of what is happening in the environment. The dairy industry generates several by-products that contain vast amounts of compounds, including proteins that are of industrial importance and for which new uses are being sought. This article provides a comprehensive review of the potential of the valorisation of proteins that can be recovered by chemical and/or physical processes from protein-containing milk by-products or milk surplus, particularly whey proteins or caseins. Whey proteins and casein characteristics, and applications in non-food industries, with special emphasis on the textile industry, packaging and biomedical, are reported in this review, in order to provide knowledge and raise awareness of the sustainability of these proteins to potentiate new opportunities in a circular economy context.
Original languageEnglish
Article number135
Issue number1
Publication statusPublished - Jan 2021


  • Casein
  • Functional properties
  • Textile fibre
  • Textile finishing
  • Whey protein


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