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(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.)

Comparison of the antioxidant property of acerola extracts with synthetic antioxidants using an in vivo method with yeasts

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Autor(es):
da Cruz, Richtier Goncalves [1, 2] ; Beney, Laurent [2] ; Gervais, Patrick [2] ; de Lira, Simone Possedente [1] ; Ferreira de Souza Vieira, Thais Maria [1] ; Dupont, Sebastien [2]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Coll Agr Luiz de Queiroz, Av Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil
[2] Univ Bourgogne Franche Comte, AgroSup Dijon, PAM UMR A 02 102, F-21000 Dijon - France
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Food Chemistry; v. 277, p. 698-705, MAR 30 2019.
Citações Web of Science: 8
Resumo

In this study, we compared the antioxidant activity of ripe and unripe acerola extracts with synthetic antioxidants (BHA and BHT). This activity was assessed by classical approaches (DPPH and ABTS) and by an in vivo method using yeasts. Acerola extracts contain phenolic compounds and ascorbic acid that exhibit radical scavenger capacity and reducing power. The results obtained with yeasts revealed that the acerola extracts and BHT either acted as antioxidants or presented no activity depending on the nature of the oxidant molecule used. BHA decreased yeast resistance to oxidative treatments and also showed deleterious effects even when oxidative treatments were not applied. The unripe acerola was the most efficient antioxidant in the in vitro experiments but not necessarily in the in vivo assays, showing the weakness of in vitro systems in predicting antioxidant responses for biological purposes. BHA presented cell damaging effects even in the absence of oxidizing reagents. (AU)

Processo FAPESP: 13/50228-8 - Componentes da biodiversidade, e seus caracteres metabólicos, de ilhas do Brasil - uma abordagem integrada
Beneficiário:Roberto Gomes de Souza Berlinck
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático