Dry matter, pH and total titratable acidity of raw and osmodehydrated samples were determined according to AOAC methods [7] and refractive index (°Bx) using a multiscale automatic refractometer (mod. RFM91, BS, UK). Solid gain (SG) and water loss (WL) of the osmotic process were assessed and expressed as g / 100 g of initial fresh pineapple [8].