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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/53719

    Título
    A techno-economic perspective on a microwave extraction process for efficient protein recovery from agri-food wastes
    Autor
    Barrios, Cristina
    Fernández Delgado, MarinaAutoridad UVA Orcid
    López Linares, Juan CarlosAutoridad UVA Orcid
    García Cubero, María TeresaAutoridad UVA Orcid
    Coca Sanz, MónicaAutoridad UVA Orcid
    Lucas Yagüe, SusanaAutoridad UVA Orcid
    Año del Documento
    2022
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Industrial Crops and Products, 2022, vol. 186, 115166
    Resumo
    Different agri-food wastes (brewer´s spent grain (BSG), spent coffee ground (SCG) and kale stems) have been proposed as excellent sources of protein-enriched extracts with an antioxidant capacity. The optimization of the microwave-assisted hydrothermal and alkali extraction has been compared in this study. From a technical and economic point of view, the extraction of BSG under optimal conditions (110 ºC, 10 min and 0.5 M NaOH) provided the best extract with a content of 14.6 kg protein/100 kg BSG (dry matter), 13.8 g/L of total sugars and an antioxidant activity (DPPH method) of 17.1 mg trolox equivalents (TE)/g BSG. This extract had the lowest production cost (29.9 €/kg) and a minimum selling price of 51.7 €/kg, estimated for an extraction pilot plant of 15 kg/h of BSG. The microwave-assisted hydrothermal extraction of kale stems, a novel waste in the biorefinery context, also provides bioactive and green extracts of commercial interest. There is a need for specific research studies related to biorefining of agri-food wastes to produce proteins for food, contributing to the development of a future sustainable and climate-neutral agriculture. The proposed techno-economic assessment represents an important advance in research and scaling-up of microwave-assisted extraction processes for protein recovery from agri-food wastes.
    Palabras Clave
    Protein recovery
    Recuperación proteica
    Economic analysis
    Análisis económico
    ISSN
    0926-6690
    Revisión por pares
    SI
    DOI
    10.1016/j.indcrop.2022.115166
    Patrocinador
    Ministerio de Ciencia, Innovación y Universidades (project PID2020–115110RB-I00/ AEI/10.13039/501100011033)
    Junta de Castilla y León (projects UIC 320, VAG028G19, CLU 2017–2109 and CL-EI-2021–07)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0926669022006495?via%3Dihub
    Propietario de los Derechos
    © 2022 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/53719
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • IPS - Artículos de revista [157]
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    Universidad de Valladolid

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