Preparation of mesoporous activated carbon from defective coffee beans for adsorption of fresh whey proteins

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorBatista, Giovanni Aleixo-
Autor(es): dc.creatorSilva, Maria Letícia Martins-
Autor(es): dc.creatorGomes, Willian de Paula-
Autor(es): dc.creatorNeves, Isabelle Cristina Oliveira-
Autor(es): dc.creatorMól, Paula Chequer Gouveia-
Autor(es): dc.creatorResende, Jaime Vilela de-
Autor(es): dc.creatorVeríssimo, Lizzy Ayra Alcântara-
Autor(es): dc.creatorSoares, Jenaina Ribeiro-
Data de aceite: dc.date.accessioned2026-02-09T12:16:45Z-
Data de disponibilização: dc.date.available2026-02-09T12:16:45Z-
Data de envio: dc.date.issued2020-04-15-
Data de envio: dc.date.issued2020-04-15-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/40085-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1158098-
Descrição: dc.descriptionWhey protein has high biological value and functional properties. Therefore, it is necessary to develop methods to recover this valuable protein and minimize the environmental impacts. Adsorptive processes using alternative adsorbents from agroindustrial waste increase the number of alternatives for adequate final disposal of the waste and add value. The aim of this study was to develop a mesoporous activated carbon (AC) from defective coffee beans (DCB) for the adsorption of fresh whey protein. The morphological structure of the adsorbent produced was characterized, and both Raman spectroscopy, FTIR and thermal analyses were performed; and the effect of pH on the adsorption capacity (q, mg g-1) was evaluated. The characterization showed that: the AC exhibited a porous size between 33 and 43 Å, corresponding to mesoporous materials; the crystallite size (La) of AC was estimated at 9.31 ± 0.14 nm; the highest adsorption capacity value (239.1781 mg g-1) was achieved at pH 2.5 and 25ºC; and the point of zero charge of the adsorbent was at pH 2.0. The pseudo first-order model fit best to the experimental results (R2 > 0.99) of whey protein adsorption onto activated carbon, and the Langmuir model was the most appropriate to represent the experimental data, with a maximum adsorption capacity of 378.4380 mg g-1, demonstrating the potential of AC obtained from DCB to adsorb fresh whey protein.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherUniversidade Estadual de Maringá-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceActa Scientiarum. Technology-
Palavras-chave: dc.subjectAgroindustrial waste-
Palavras-chave: dc.subjectAdsorbents-
Palavras-chave: dc.subjectIsotherms-
Palavras-chave: dc.subjectRaman spectroscopy-
Palavras-chave: dc.subjectWhey proteins-
Palavras-chave: dc.subjectResíduos agroindustriais-
Palavras-chave: dc.subjectAdsorventes-
Palavras-chave: dc.subjectIsotermas-
Palavras-chave: dc.subjectEspectroscopia Raman-
Palavras-chave: dc.subjectProteínas de soro de leite-
Título: dc.titlePreparation of mesoporous activated carbon from defective coffee beans for adsorption of fresh whey proteins-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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