Functional Properties, Total Phenolic Content and Antioxidant Activity of Purple Cactus Pear (Opuntia ficus-indica) Waste: Comparison with Commercial Fibers
2019
Monter-Arciniega, Araceli | Hernández-Falcón, Tania Atzimba | Cruz-Cansino, Nelly del Socorro | Ramírez-Moreno, Esther | Alanís-García, Ernesto | Arias-Rico, José | Ariza-Ortega, José Alberto
The aim of this study was to determine the proximate chemical composition, dietary fiber functional properties, viscosity, total phenolic content, antioxidant capacity and color of purple cactus pear waste (PCPW) in comparison with commercial fibers. PCPW had similar moisture, ash and functional properties as the other fibers, also low protein, fat and total dietary fiber content but showed higher fat absorption capacity (3.38 g g⁻¹). All fibers had a non-Newtonian pseudoplastic behavior and had high total phenolic content except the commercial fiber of Plantagum psylium which formed a gel and had the lowest total phenolic content. PCPW had the highest antioxidant activity measured by ABTS with 1485.14 µmol TE 100 g⁻¹ dry basis, high content of digestible carbohydrates (73%) and an intense red color in comparison to the commercial samples.
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