Coupling of pressure-driven membrane technologies for concentrating, purifying and fractionizing betacyanins in cactus pear (Opuntia dillenii Haw.) juice

An integrated process coupling crossflow micro and ultra or nanofiltration was applied to separate the betacyanins in cactus pear juice (30 °C). Four microfiltration ceramic membranes (0.1–0.2 μm, 1.8–3.3 bar) and 4 ultra/nanofiltration organic membranes (0.2–4.0 kDa, 5–30 bar) were tested. Microfil...

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