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Abstract Title:

Optimized Camellia sinensis var. sinensis, Ilex paraguariensis, and Aspalathus linearis blend presents high antioxidant and antiproliferative activities in a beverage model.

Abstract Source:

Food Chem. 2018 Jul 15 ;254:348-358. Epub 2018 Feb 6. PMID: 29548463

Abstract Author(s):

Jânio S Santos, Carolina T P Deolindo, Jessica F Hoffmann, Fabio C Chaves, Leonardo do Prado-Silva, Anderson S Sant'Ana, Luciana Azevedo, Mariana Araújo Vieira do Carmo, Daniel Granato

Article Affiliation:

Jânio S Santos

Abstract:

A statistical optimization study was conducted to obtain a tea containing fermented rooibos (Aspalathus linearis), white tea (Camellia sinensis var. sinensis), and roasted mate (Ilex paraguariensis). An optimal combination of these species was proposed. This optimized tea inhibited 64% the lipoperoxidation in vitro and presented a high phenolic content, especially kaempferol, (+)-catechin, (-)-epicatechin, rutin, (-)-epigallocatechin, and (-)-epicatechin-2-O-gallate. Indeed, the antioxidant effect was confirmed by decreasing 30% the reactive oxygen species generation in human hepatoma carcinoma cells (HepG2, 100 and 240 µg/mL). In the cell viability assay, the GIfor human colorectal adenocarcinoma epithelial cells (Caco-2) was about 547 µg/mL and 481 µg/mL for HepG2. The pasteurization process (65 °C/30 min) did not affect the total phenolic content and antioxidant activity of the optimized tea formulation. The sensory test indicated an acceptability index of 78%, showing that the analytical approach adopted was feasible to develop a phenolic-rich beverage.

Study Type : In Vitro Study

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