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. 2009 Jan;3(1):71–85.

Table (3).

Concentration of different chemicals present in local food stuffs under different conditions.

Food/Item Beverage Active Ingredients Concentration (μg/kg) Nature/Condition
Smoked fish NDMA 20 Uncooked
NPIP - Uncooked
NPYP - Uncooked
NTCA 3294 Nitrosation under simulated gastric conditions with realistic nitrite concentration
Sun dried fish NDMA 20 Nitrosation under simulated gastric conditions with realistic nitrite concentration
Hakh Fresh NDMA 11 Cooked
Sun dried NDMA 69.9 Nitrosation under simulated gastric conditions with realistic nitrite concentration
NPYR 21 Cooked
NMNU 1200 Nitrosation under chemical condition
Sun dried mixed vegetables NDMA 10 Uncooked
NDMA 35.6 Nitrosation under simulated gastric conditions with realistic nitrite concentration
Spinach NDMA 5.8 Uncooked
NPIP 23.8 Uncooked
Pumpkin NPYR 24.6 Uncooked
Red chilies & wur NPIC 43115 Nitrosation under simulated gastric conditions with realistic nitrite concentration
Pickled vegetables NDMA 7.7 Nitrosation under simulated gastric conditions with realistic nitrite concentration
Noon chai NPRO 360 Nitrosation of tea extract under conditions simulating the fasting human stomach
NPIC 5870 Nitrosation of tea extract under conditions simulating the fasting human stomach
3 non-volatile unidentified nitrosamines - Nitrosation of tea extract under conditions simulating the fasting human stomach
Methylating activity 3ppm of NMNU In vitro nitrosation
Kehwa NDMA 9.2 Under simulated gastric conditions with realistic nitrite concentration

NDMA= N-nitrosodimethylamine; NMNU = N-methylnitrosourea; NPIC = N-nitrosopipecolic acid; NPYR =N-nitrosopyrrolidine; NPIP = N-nitrosopiperidine; NPRO =N-nitrosoproline; NTCA = N-nitrosothaizolidine-4-carboxylic acid

Data from references 35, 36, 38, 39.