Rapid Determination of Volatile N-Nitrosamines in Nonfat Dry Milk
نویسندگان
چکیده
منابع مشابه
Absence of vitamin D in nonfat dry milk.
American Academy of Pediatrics has strongly e11(lOrsed the use of milk and infant formula lroducts as primary vehicles for vitamin D supplementation to ensure a total vitamin D intake of 400 I. U. per day by all infants and children.12 Although in the United States there are significant regioiial differences with respect to dairy practices in fortifying fluid milk, almost three-fourths of all w...
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A number of milk types and milk fractions were investigated as possible substitutes for serum in cell culture media. A filtrate of reconstituted nonfat dry milk showed promise. Culture fluids containing 5% of the nonfat dry milk filtrate were used to propagate primary and continuous cell cultures, and the cell growth from these cultures was compared with that of cells grown in a serum-containin...
متن کاملAbsence of Volatile Nitrosamines in Human Feces1
Using a method for nitrosamine analysis that gives high recovery values and that is free from artifactual synthesis of nitrosamines, we have shown that human feces do not contain volatile nitrosamines (detection limit, 0.1 to 0.5 /ng/kg). We also showed that nitrosation reactions are not catalyzed by fecal organisms. Following a 2-day anaerobic incubation of feces with either a secondary aminé...
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Volatile N-nitrosamines were detected in the urine of male volunteers with gas-liquid and high-pressure liquid chromatography interfaced to the thermal energy analyzer. Of 50 samples from normal males, 10 contained nitrosodimethylamine (0.02 to 0.10 micrograms/liter), 6 contained nitrosodiethylamine (0.02 to 3.10), 9 contained nitrosomorpholine (0.006 to 0.67), and none contained nitrosodibutyl...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1982
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(82)82174-7