N-nitrosodimethylamine, nitrate and nitrate-reducing microorganisms in human milk.
Of 54 milk samples from 54 healthy nursing women analysed for volatile N-nitrosamines, 42 appeared negative. Trace amounts (below the detection limit 0.5 microgram l-1) of N-nitrosodimethylamine were detected in the milk of 10 mothers and two samples contained this compound at 1.1 and 1.2 micrograms 1-1 respectively. Almost all samples investigated contained nitrate (mean 2.9 +/- 2.3 mg1-1 and nitrate reducing microorganisms (mean 4.2 +/- 1.0 log ml-1). The recent finding of N-nitrosodimethylamine in human milk gives evidence of the continuous endogenous formation of N-nitrosamines.
Uibu
J
J
Institute of Experimental and Clinical Medicine, Estonia.
Tauts
O
O
Levin
A
A
Shimanovskaya
N
N
Matto
R
R
D004128:Dimethylnitrosamine / Q000032:analysis*; D005260:Female; D006801:Humans; D008895:Milk, Human / Q000737:chemistry* / Q000382:microbiology; D009566:Nitrates / Q000032:analysis*
D009566:Nitrates; D004128:Dimethylnitrosamine