Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Combining pressurized liquids with ultrasound to improve the extraction of phenolic compounds from pomegranate peel (Punica granatum L.)

Texto completo
Autor(es):
Sumere, Beatriz Rocchetti [1] ; de Souza, Mariana Correa [1] ; dos Santos, Mariana Pacifico [1] ; Neves Bezerra, Rosangela Maria [1] ; da Cunha, Diogo Thimoteo [1] ; Martinez, Julian [2] ; Rostagno, Mauricio Ariel [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Campinas UNICAMP, Sch Appl Sci FCA, Lab Funct Properties Foods LAPFAL, Sao Paulo - Brazil
[2] Univ Estadual Campinas, Coll Food Engn FEA, Dept Food Engn, Lab High Pressure Food Engn LAPEA, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: ULTRASONICS SONOCHEMISTRY; v. 48, p. 151-162, NOV 2018.
Citações Web of Science: 13
Resumo

The combination of ultrasound and pressurized liquid extraction (UAPLE) was evaluated for the extraction of phenolic compounds from pomegranate peels (Punica granatunt L.). The influence of several variables of the process on extraction yield, including solvent type (water, ethanol + water 30, 50 and 70% v:v), temperature (50-100 degrees C), ultrasound power (0-800 W at the generator, or 0-38.5 W at the tip of the probe), mean particle size (0.68 and 1.05 mm), and number of cycles (1-5), were analyzed according to the yield of 20 different phenolic compounds. The most suitable temperatures for the extraction of phenolic compounds using water were from 70 to 80 degrees C. In general, 100 degrees C was not adequate since the lowest extraction yields were observed. Results suggested that ultrasound had a greater impact on extraction yields using large particles and that intermediate ultrasound power (480-640 W at the generator, or 23.1-30.8 W at the tip of the probe) produced the best results. Using small particles (0.68 mm) or large particles (1.05 mm), extraction with ultrasound was 1 cycle faster. Ultrasound may have offset the negative effect of the use of large particles, however, did not increase the yield of phenolic compounds in any of the cases studied after five cycles. Additionally, the continuous clogging problems observed with small particles were avoided with the use of large particles, which combined with ultrasound allowed consistent operation with good intra and inter-day reproducibility (> 95%). Using samples with large particle size, the best extraction conditions were achieved with water extraction solvent, 70 degrees C extraction temperature, ultrasound power at 480 W, and 3 cycles, yielding 61.72 +/- 7.70 mg/g. UAPLE demonstrated to be a clean, efficient and a green alternative for the extraction of phenolic compounds from pomegranate peels. These findings indicate that UAPLE has a great potential to improve the extraction of bioactive compounds from natural products. (AU)

Processo FAPESP: 15/11932-7 - Integração de processos de extração a alta pressão com operações de separação para o aproveitamento de subprodutos do processamento de frutas
Beneficiário:Julian Martínez
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 16/20016-7 - Extração de compostos bioativos a partir da casca de Roma (Punica granatum L.) utilizando líquidos pressurizados assistido por ultrassom
Beneficiário:Mariana Pacífico dos Santos
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 16/19930-6 - Avaliação da extração com líquidos pressurizados assistida por ultrassom acoplada à extração em fase sólida para a purificação de compostos fenólicos de chá (Camellia sinensis)
Beneficiário:Mariana Corrêa de Souza
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 16/06457-0 - Folhas e talos de beterraba (Beta vulgaris L.): caracterização e efeitos da capacidade antioxidante em indivíduos obesos e dislipidêmicos
Beneficiário:Rosângela Maria Neves Bezerra
Linha de fomento: Auxílio à Pesquisa - Regular