Membrane Technology for Gardenia Yellow Pigment Purification & Concentration

Membrane separation technology offers a low-temperature, food-grade solution for gardenia yellow pigment refining. Combined with MF, UF and NF membranes, the process accomplishes clarification, impurity removal and concentration of crude gardenia extract in one integrated system. It effectively separates crocin from geniposide, pectin and macromolecular impurities, avoiding thermal damage to pigment active substances seen in traditional evaporation methods. The cross-flow tubular membrane equipment supports continuous production with convenient CIP cleaning, raising pigment recovery rate, improving color value and reducing energy and wastewater costs. It is an ideal technical upgrade for natural gardenia yellow manufacturers.