The aim of this work was to optimise methods for purifying date juice (a si
gnificant source of sugars) to meet liquid sugar requirements. The potentia
ls of ultrafiltration for decolorization, and electrodialysis for demineral
isation, have been studied as alternatives to ion exchange resins. Electrod
ialysis gives very promising results, especially with decolorized or partia
lly decolorized juices.