Polyphenols of jabuticaba [Myrciaria jaboticaba (Vell.) O.Berg] seeds incorporated in a yogurt model exert antioxidant activity and modulate gut microbiota of 1,2-dimethylhydrazine-induced colon cancer in rats

Marina Fidelis, Jânio Sousa Santos, Graziela Bragueto Escher, Ramon Silva Rocha, Adriano Gomes Cruz, Thiago Mendanha Cruz, Mariza Boscacci Marques, Juliana Barbosa Nunes, Mariana Araújo Vieira do Carmo, Leonardo Augusto de Almeida, Tai Kaneshima, Luciana Azevedo, Daniel Granato

Research output: Contribution to journalArticlepeer-review

Abstract

The chemical composition, antioxidant activity (AA), cytotoxic activity, antihemolytic effects, and enzyme inhibition (EI) of lyophilized jabuticaba (Myrciaria jaboticaba) seed extract (LJE) was studied. The main compounds found were castalagin, vescalagin, procyanidin A2, and ellagic acid. LJE was more toxic to cancer cells than to normal cells, meaning relative toxicological safety. This cytotoxic effect can be attributed to the pro-oxidant effect observed in the reactive oxygen species (ROS) generation assay. LJE inhibited α-amylase, α-glucosidase, and ACE-I activities and protected human erythrocytes from hemolysis. LJE was incorporated into yogurts at different concentrations and the total phenolic content, AA, and EI increased in a dose-dependent manner. LJE-containing yogurt presented 86% sensory acceptance. The yogurt was administered to Wistar rats bearing cancer and it modulated the gut bacterial microbiota, having a prebiotic effect. LJE is a potential functional ingredient for food companies looking for TPC, AA, and prebiotic effect in vivo.

Original languageEnglish
Article number127565
Pages (from-to)127565
JournalFood Chemistry
Volume334
DOIs
Publication statusPublished - 1 Jan 2021
Externally publishedYes

Keywords

  • Castalagin
  • Cytotoxic activity
  • Dairy products
  • Fruit seeds
  • Gut microbiota modulation
  • Vescalagin

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