Degradation of nitroso derivs. contained in aq. medium - e.g. acidic protein hydrolysate, by suspending iron@, zinc@ or aluminium@ powder in the aq. medium under specified conditions of pH, time and temp

Nitroso derivs. contained in an aq. medium are degraded by putting pulverulent Fe, Zn or Al in suspension in the aq. medium in amt. of 500-2000 ppm at a pH of 2-6 for 1-8 hrs. at 20-90 deg.C. Amt. of Fe, Zn or Al in suspension is 1000 ppm and particle size of the metal powder is 0.01-0.1 mm. The pro...

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Bibliographische Detailangaben
Hauptverfasser:	HIRSBRUNNER, PIERRE, WEYMUTH, HANS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROTEIN COMPOSITIONS FOR FOODSTUFFS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES WORKING-UP PROTEINS FOR FOODSTUFFS
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Zusammenfassung:	Nitroso derivs. contained in an aq. medium are degraded by putting pulverulent Fe, Zn or Al in suspension in the aq. medium in amt. of 500-2000 ppm at a pH of 2-6 for 1-8 hrs. at 20-90 deg.C. Amt. of Fe, Zn or Al in suspension is 1000 ppm and particle size of the metal powder is 0.01-0.1 mm. The process is effected at a pH of 2-3, for 3-6 hrs. at 50-80 deg.C. The Fe, Zn or Al is pptd. with Na phosphate. USE/ADVANTAGE - For degrading nitroso derivs., esp. nitrosamine in acidic protein hydrolysates. The process does not adversely affect the organoleptic aspect of the prod.