Sequential high-pressure extraction of caffeine and bioactive compounds from caferana seeds (Bunchosia glandulifera)

Autor(es)

Fraga, Sara ^[1] ; Goncalves, Daniel ^[1] ; Nasario, Fabio ^[2] ; Pereira, Ericsem ^[1] ; Pontes, Paula ^[1] ; Ribas, Larisa ^[1] ; Barbeiro, Lilian Bozzi ^[1] ; de Almeida Meirelles, Antonio Jose ^[1] ; Cabral, Fernando ^[1] ; Sampaio, Klicia Araujo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Food Engn, Monteiro Lobato St 80, BR-13083862 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Chem Inst, Josue de Castro St 126, BR-13083861 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF SUPERCRITICAL FLUIDS; v. 165, NOV 1 2020.
• Citações Web of Science: 0

Resumo

Caferana (Bunchosia glandulifera) is a Brazilian plant that produces small red fruits with high nutritional value and possible anti-aging effects. This study aimed to evaluate the composition of caferana seed extracts obtained by sequential extractions with supercritical carbon dioxide in the first step, followed by pressurized liquid extractions using ethanol (second step) and water (third step) as solvents. Obtained extracts were characterized in terms of global yield, caffeine, tocols, fatty acids contents, and total phenolics, as well as their antioxidant activity, and results were thus compared with the conventional extraction method. Sequential extraction showed the best global yield (62.4 %). Supercritical carbon dioxide extract was more concentrated in caffeine (8.44 mg/g), and ethanolic one was more concentrated in total phenolic compounds with higher antioxidant activity capacity, whereas aqueous extract contained low levels of all monitored compounds. Overall, sequential extraction reveled increased selectivity and efficiency in obtaining extracts enriched with different compounds. (C) 2020 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos
• Beneficiário: Antonio José de Almeida Meirelles
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/13207-6 - Extração e simulação computacional da produção de biodiesel etanólico de óleo de amendoim
• Beneficiário: Daniel Gonçalves
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/16979-7 - Desenvolvimento de metodologias preditivas para o cálculo de propriedades físicas, de equilíbrio e simulação do comportamento fluidodinâmico de óleos e gorduras durante o processo digestivo
• Beneficiário: Ericsem Pereira
• Modalidade de apoio: Bolsas no Brasil - Doutorado