Processing tomato waste as a potential bioactive compounds source: phenolic compounds, antioxidant capacity and bioacessibility studies

A comparative study was perfomed with conventional and ultrasound assisted extraction on tomato processing waste. Ultrasound extraction exhibited slightly higher phenolic and flavonoids content, as well as higher ABTS + radical scavenging capacity (4.63 mg GAE.g-1, 0.96 mg RUE.g-1 and 27.90 μmol TE....

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Bibliographic Details
Published in:Ciência rural Vol. 52; no. 2
Main Authors: Gomes, Flavia dos Santos, Silva, Luis Otávio Moreira, Beres, Carolina, Pagani, Monica Marques, Brígida, Ana Iraidy Santa, Santiago, Manuela Cristina Pessanha de Araújo, Pacheco, Sidney, Godoy, Ronoel Luiz de Oliveira, Cabral, Lourdes Maria Corrêa
Format: Journal Article
Language:English
Published: Universidade Federal de Santa Maria 01-01-2022
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Summary:A comparative study was perfomed with conventional and ultrasound assisted extraction on tomato processing waste. Ultrasound extraction exhibited slightly higher phenolic and flavonoids content, as well as higher ABTS + radical scavenging capacity (4.63 mg GAE.g-1, 0.96 mg RUE.g-1 and 27.90 μmol TE.g -1 respectively). On both extracts, a high percentage of flavonoids was lost during simulated digestion, resulting on a bioacessibility of approximately 13 %. Extracts presented good stability during storage conditions, which indicates a possible technological application. RESUMO: Foi realizado um estudo comparativo com a extração convencional e assistida por ultrassom em resíduos do processamento de tomate. A extração ultrassônica exibiu teor de fenólicos e flavonóides ligeiramente maiores, bem como maior capacidade antioxidante ABTS + (4,63 mg AG.g-1, 0,96 mg RUE.g-1 e 27,90 μmol TE.g -1, respectivamente). Em ambos os extratos, uma alta porcentagem de flavonóides foi perdida durante a digestão simulada, resultando em uma bioacessibilidade de aproximadamente 13%. Os extratos apresentaram boa estabilidade durante as condições de armazenamento, o que indica uma possível aplicação tecnológica.
ISSN:0103-8478
1678-4596
1678-4596
DOI:10.1590/0103-8478cr20201070