[The effect of gamma radiation on the methionine and tryptophan content of soy protein products].
Effect of gamma irradiation on the content of methionine and tryptophan in soya protein products were investigated. Irradiation with doses of 1, 3 and 5 kGy caused significant (p = 0.05) decrease of methionine contents. Parallel with the decrease in methionine also the relative quality of proteins is lowered. Tryptophan content were significantly reduced (p = 0.05) at irradiation doses of 3 and 5 kGy. The relative decrease of methionine and tryptophan contents are significantly correlated (p = 0.05) with relative increase in amount of products by the irradiation induced oxidation of lipids; correlation coefficients were 0.576 and 0.715.
Institut für Lebensmittelchemie, Pharmazeutisch-biochemische Fakultät, Universität Zagreb, Kroatien.
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Horvatić
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Grüner
D005720:Gamma Rays; D008055:Lipids / Q000528:radiation effects; D008715:Methionine / Q000032:analysis / Q000528:radiation effects*; D010084:Oxidation-Reduction / Q000528:radiation effects; D014674:Plant Proteins, Dietary / Q000032:analysis / Q000528:radiation effects*; D030262:Soybean Proteins; D014364:Tryptophan / Q000032:analysis / Q000528:radiation effects*
D008055:Lipids; D014674:Plant Proteins, Dietary; D030262:Soybean Proteins; D014364:Tryptophan; D008715:Methionine
Einfluss der Gamma-Bestrahlung auf den Methionin- und Tryptophangehalt in Sojaproteinprodukten.