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Distribution of Protein, Lycopene and the Elements Ca, Mg, P and N Among Various Fractions of Tomato Juice
Author(s) -
LINDNER P.,
SHOMER I.,
VASILIVER R.
Publication year - 1984
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1984.tb10436.x
Subject(s) - lycopene , chemistry , total dissolved solids , fraction (chemistry) , extracellular , food science , intracellular , chromatography , alcohol , composition (language) , biochemistry , carotenoid , linguistics , philosophy , environmental engineering , engineering
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.