Membrane Separation and Concentration Technology for Cucumber Juice Processing

This paper introduces the application of integrated membrane systems in cucumber juice clarification and concentration. Microfiltration removes pulp and suspended solids, ultrafiltration eliminates colloids and bacteria, and nanofiltration concentrates active ingredients under low temperature. This gentle process effectively protects heat‑sensitive nutrients, original flavour and colour of cucumber juice. Compared with thermal evaporation, it saves energy and reduces pollution. Proper cross‑flow control and CIP cleaning relieve membrane fouling, making it suitable for beverage and plant extract production.