-transparent.png){kind=logo}
The inhibitory effect of soybean protein isolates on nonheme-iron absorption was studied in 34 human subjects. Iron absorption was measured by using an extrinsic radioiron label in liquid-formula meals containing hydrolyzed corn starch, corn oil, and either egg white or a series of soybean-protein derivatives. The unmodified soybean-protein isolate markedly inhibited iron absorption. Percentage absorption was 19-fold higher when an extensively enzyme-hydrolyzed preparation with very little phytate was used as the protein source. Both the glycinin (11S) and conglycinin (7S) fractions of soybean protein were inhibitory to iron absorption. Dephytinization removed the inhibitory effect of the glycinin but not of the conglycinin fraction. We conclude that there are two major inhibitors of iron absorption in soybean-protein isolates, phytic acid and a protein-related moiety contained in the conglycinin (7S) fraction.
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
September 1991,
The Journal of nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
February 1988,
The American journal of clinical nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
September 1953,
La Riforma medica,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
May 1992,
The Journal of nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
January 2003,
The American journal of clinical nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
August 1981,
The American journal of clinical nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
January 1995,
Journal of toxicology. Clinical toxicology,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
July 1968,
The Tohoku journal of experimental medicine,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
November 2006,
The Journal of nutrition,
S R Lynch, and
S A Dassenko, and
J D Cook, and
M A Juillerat, and
R F Hurrell
May 1987,
The American journal of clinical nutrition,
