Proposal for fractionating Brazilian ginseng extracts: Process intensification approach

Autor(es)

Vardanega, Renata ; Santos, Diego T. ; Meireles, M. Angela A.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Food Engineering; v. 196, p. 73-80, MAR 2017.
• Citações Web of Science: 3

Resumo

Brazilian ginseng (Pfaffia glomerata) roots contain several bioactive compounds, including beta-ecdysone with several therapeutic effects, saponins with surface activity and fructooligosaccharides (FOS) with prebiotic effects. Regarding this rich composition, a two-step intensified extraction process that uses the same solid-liquid extraction apparatus was developed to obtain and fractionate the bioactive compounds from Brazilian ginseng roots using ethanol and water as the extraction solvents. The intensified process was compared to a conventional extraction process using water as the solvent. The beta-ecdysone and saponins were mainly concentrated in the ethanolic extract obtained in step 1 of the intensified extraction process, while the FOS was isolated in the aqueous extract obtained in step 2. The effect of pressure (0.1, 5 and 10 MPa) on the extraction yield, beta-ecdysone content, saponin content, water surface tension reduction rate and FOS content was evaluated using the analysis of variance (ANOVA) statistical method. The highest beta-ecdysone content (5.6%, d.b.) was obtained at ambient pressure (0.1 MPa), while the highest saponin content (55%, d.b.) was obtained at 5 MPa. However, the extracts that had better surface activity were also obtained at ambient pressure. The total FOS content obtained at ambient pressure was 7.9% (d.b.). The kinetic study showed that suitable process times for the first and second steps were 38 and 110 min, respectively. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/19304-7 - Biorrefinaria do ginseng brasileiro: simulação e otimização multiobjetivo
• Beneficiário: Diego Tresinari dos Santos
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 12/10685-8 - Combinação/acoplamento de processos para a produção e encapsulamento de extratos vegetais de alto valor agregado: avaliação técnica e econômica
• Beneficiário: Maria Angela de Almeida Meireles Petenate
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/16485-5 - Avaliação técnica e econômica da integração de processos sustentáveis visando um melhor aproveitamento do ginseng brasileiro (Pfaffia glomerata)
• Beneficiário: Diego Tresinari dos Santos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/17260-5 - Intensificação do processo de extração de saponinas do ginseng brasileiro (Pfaffia glomerata) utilizando ultrassom e processos acoplados para aproveitamento integral da planta
• Beneficiário: Renata Vardanega
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/04304-4 - Desenvolvimento de sistemas integrados para a análise de compostos bioativos em produtos naturais utilizando tecnologia supercrítica
• Beneficiário: Maurício Ariel Rostagno
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores