Antioxidant properties of a thermoultrasonicated cactus pear [Opuntia ficus indica (L.) Mill, (Cactaceae)] blend juice in comparison with traditional thermal processing
DOI:
https://doi.org/10.9755/ejfa.2021.v33.i12.2791Abstract
Functional beverages market requires conservation methods where bioactive compounds could persist for their bioavailability. The aim
of this work was determined the extractwion yield, antioxidant capacity and bioavailability of a cactus pear (Opuntia ficus-indica) juice
blended using different solvent to extraction after pasteurization (PAST) or thermoultrasonication (TUS) treatment. The best properties
were exhibited by TUS juice, showing 575.8 ± 11.1 mg GAE·L-1 for total phenolic, and 392.78 ± 4.1 mg betanain E·L-1 for pigment
content. Which resulted in a greater antioxidant activity bioavailable (87% DPPH; 38% ABTS). The highest antioxidant activity was found
in the TUS methanolic extraction, exhibiting higher bioaccessibility than the juice (78% ABTS; 179% DPPH). It can be concluded that
thermoultrasonication and methanolic extraction of a cactus pear juice blend allows a greater antioxidant compounds to be bioavailable