INDUSTRIAL HEMP IN CRAFT BEER AND BIOCHAR FROM WASTE FOR MERCURY REMOVAL

Renato Agustín Romero-Corral; José Luis  Agreda-Oña; Alexandra Isabel Tapia-Borja; Andrés Sebastián Moreno Ávila

doi:10.31413/nat.v14i3.21228

Autores

Renato Agustín Romero-Corral renato.romero2483@utc.edu.ec
Faculty of Agricultural Sciences and Natural Resources, Technical University of Cotopaxi, Salache, Latacunga, Ecuador. https://orcid.org/0000-0002-4599-7778
José Luis Agreda-Oña jose.agreda2101@utc.edu.ec
Faculty of Agricultural Sciences and Natural Resources, Technical University of Cotopaxi, Salache, Latacunga, Ecuador. https://orcid.org/0009-0005-5858-869X
Alexandra Isabel Tapia-Borja alexandra.tapia@utc.edu.ec
Faculty of Agricultural Sciences and Natural Resources, Technical University of Cotopaxi, Salache, Latacunga, Ecuador. https://orcid.org/0000-0001-6935-5211
Andrés Sebastián Moreno-Ávila andres.moreno0063@utc.edu.ec
Faculty of Agricultural Sciences and Natural Resources, Technical University of Cotopaxi, Salache, Latacunga, Ecuador. https://orcid.org/0009-0008-4961-3031

DOI:

https://doi.org/10.31413/nat.v14i3.21228

Palavras-chave:

Cannabis sativa, Humulus lupulus, adsorption, circular economy, phenolic compounds

Resumo

Cânhamo industrial na cerveja artesanal e biochar de resíduos para remoção de mercúrio

RESUMO: O cânhamo industrial (Cannabis sativa) foi avaliado como substituto parcial do lúpulo (Humulus lupulus) na produção de cerveja artesanal e como precursor para a valorização do resíduo cervejeiro pós-fermentação. Quatro estilos de cerveja e quatro níveis de substituição (0, 30, 70 e 100%) foram avaliados em delineamento fatorial 4 × 4, com três lotes independentes por combinação. Foram determinadas propriedades físico-químicas e a aceitabilidade sensorial, e o resíduo selecionado foi caracterizado quanto aos fenólicos totais e convertido em resíduos secos (T1), biochar não modificado (T2) e biochar modificado com FeCl₃ (T3) para a remoção de Hg²⁺. As respostas à substituição dependeram do estilo, especialmente quanto ao pH e à acidez titulável, enquanto não houve efeito geral da substituição sobre o teor alcoólico nem sobre a densidade final. Weissbier e Sour apresentaram alterações sensoriais menores em comparação com os controles, na faixa de 30–70%. O resíduo selecionado apresentou 21 mg EAG g⁻¹ de fenólicos totais. A remoção de Hg²⁺ atingiu 94,0 ± 2,0% para T1, 97,0 ± 1,5% para T2 e 99,5 ± 0,3% para T3. Os resultados sustentam a substituição moderada por flores de cânhamo em estilos selecionados e a valorização sequencial do resíduo gerado como precursor adsorvente.

Palavras-chave: Cannabis sativa; Humulus lupulus; adsorção; economia circular; compostos fenólicos.

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