Occurrence of nitrate, nitrite and volatile nitrosamines in certain feedstuffs and animal products.
Nitrate, nitrite and nitrosamines were analysed in poultry feeds, meat and eggs. The poultry meat was boiled and roasted while the eggs were raw and boiled, and the effects of these processing treatments on the level of these compounds were investigated. Nitrate levels in the meat samples were significantly (P < 0.05) reduced by boiling and roasting, with boiling being more effective. Nitrite levels were also reduced significantly by processing (P < 0.05). The feed samples contained levels of nitrate which were significantly different (P < 0.05) from one producer to another. Nitrite levels were generally low in all feed samples. Nitrosamines were not detected in any of the feed samples and in the meat samples except in two samples of boiled meat which contained 0.001 g/kg each.
Ologhobo
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AD
Animal Science Department, University of Ibadan, Nigeria.
Adegede
H I
HI
Maduagiwu
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EN
D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002273:Carcinogens / Q000032:analysis*; D003296:Cooking; D004531:Eggs / Q000032:analysis; D005511:Food Handling; D008460:Meat / Q000032:analysis; D009549:Nigeria; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D009602:Nitrosamines / Q000032:analysis*; D011200:Poultry; D011202:Poultry Products / Q000032:analysis*
D002273:Carcinogens; D009566:Nitrates; D009573:Nitrites; D009602:Nitrosamines