Distribution of Protein, Lycopene and the Elements Ca, Mg, P and N Among Various Fractions of Tomato Juice

Samples of Israeli commercial tomato juice were analyzed for content of insoluble solids, and distribution of lycopene and elements Ca, Mg, P and N among various fractions. 75% of the insoluble solids were cell walls, still enclosing a part of intracellular material, and 25% were extracellular protein rich granules. More than 50% of the lycopene and insoluble N was found in the extracellular fraction of insoluble solids. About half the total amount of Ca was found in insoluble solids. Of the Ca in serum, about 70% precipitated with alcohol‐insoluble solids (AIS) fraction. Almost all Mg in juice was soluble in serum and only 10% precipitated with AIS.