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Nutritional and Toxicological Significance of Enzyme Inhibitors in Foods (Paperback, Softcover reprint of the original 1st ed. 1986)
Loot Price: R2,916
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Nutritional and Toxicological Significance of Enzyme Inhibitors in Foods (Paperback, Softcover reprint of the original 1st ed. 1986)
Series: Advances in Experimental Medicine and Biology, 199
Expected to ship within 10 - 15 working days
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Soybean protei ns are wi de 1 y used inhuman foods ina vari ety of
forms, including baby formulas, flour, soy protein concentrates,
soy protein isolates, soy sauces, textured soy fibers, and tofu.
The presence of inhibitors of digestive enzymes in soy proteins
impairs nutritional quality and possible safety of this impportant
legume. Normal processing conditions based on the use of heat do
not completely inactivate these inhibitors, so that residual
amounts of plant protease inhibitors are consumed by animals and
man. Inhibitors of digestive enzymes are present not only in
legumes, such as soybeans, lima beans, and kidney beans, but also
in nearly all plant foods, including cereals and potatoes, albeit
in much smaller amounts. The antinutritional effects of inhibitors
of proteolytic enzymes have been widely studied and can be
ameliorated by processing and/or sulfur amino acid fortification. A
more urgent concern is reports that rats fed diets containing even
low levels of soybean-derived inhibitors, which are found in foods
such as soy-based baby formulas, may develop over their lifespan
pancreatic lesions leading eventually to neoplasia or tumor
formation. On the other hand, recent stUdies suggest that certain
enzyme inhibitors from plant foods may prevent cancer formation in
other tissues. A key question, therefore, is whether inhibitors
from plant foods constitute a human health hazard.
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