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Protein extraction from agri-food residues for integration in biorefinery: Potential techniques and current status

2019; Elsevier BV; Volume: 280; Linguagem: Inglês

10.1016/j.biortech.2019.02.040

1873-2976

María del Mar Contreras, Antonio Lama-Muñoz, José Manuel Gutiérrez-Pérez, Francisco Espínola, Manuel Moya, Eulógio Castro,

Protein Hydrolysis and Bioactive Peptides

The biorefinery concept is attracting scientific and policy attention as a promising option for enhancing the benefits of agri-food biomass along with a reduction of the environmental impact. Obtaining bioproducts based on proteins from agri-food residues could help to diversify the revenue stream in a biorefinery. In fact, the extracted proteins can be applied as such or in the form of hydrolyzates due to their nutritional, bioactive and techno-functional properties. In this context, the present review summarizes, exemplifies and discusses conventional extraction methods and current trends to extract proteins from residues of the harvesting, post-harvesting and/or processing of important crops worldwide. Moreover, those extraction methods just integrated in a biorefinery scheme are also described. In conclusion, a plethora of methods exits but only some of them have been applied in biorefinery designs, mostly at laboratory scale. Their economic and technical feasibility at large scale requires further study.