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http://dx.doi.org/10.13103/JFHS.2015.30.3.265

The Naturally Occurring Levels of Nitrate and Nitrite in Livestock Products  

Choi, Jae-Chun (Food Additives and Packages Division, Ministry of Food and Drug Safety)
Park, So-Ra (Food Additives and Packages Division, Ministry of Food and Drug Safety)
Lim, Ho-Soo (Food Additives and Packages Division, Ministry of Food and Drug Safety)
Ko, Kyung-Yuk (Food Additives and Packages Division, Ministry of Food and Drug Safety)
Kim, Meehye (Food Additives and Packages Division, Ministry of Food and Drug Safety)
Publication Information
Journal of Food Hygiene and Safety / v.30, no.3, 2015 , pp. 265-271 More about this Journal
Abstract
This study was done in order to investigate the naturally occurring levels of nitrate and nitrite in livestock products. Total samples of 458 consisting of meats (n = 223), processed meat products (n = 51), raw milks (n = 30), processed milk products (n = 142), eggs (n = 5) and processed egg products (n = 7) were analyzed for contents of nitrate and nitrite by ion chromatography (IC). That methods showed good results in terms of linearity, limit of detection (LOD), limit of quantitation (LOQ), recovery, reproducibility and uncertainty. Nitrate and nitrite were detected in 167 and 40 samples, respectively. The nitrate levels (mg/kg) were not detected (ND)~40.23 for modified milks, ND~37.97 for sauce meats, ND~32.40 for process cheeses, ND~31.50 for processed egg products, ND~27.73 for dry milks, ND~24.76 for sausages, ND~22.45 for bacons, ND~21.55 for natural cheeses, ND~20.82 for hams and fermented milks, ND~13.57 for eggs, ND~12.77 for butters, ND~9.31 for milks and ND~3.88 for meats while the nitrite levels (mg/kg) were ND~17.35 for processed egg products and ND~1.92 for meats. In conclusion, the result of this study of nitrate and nitrite in livestock products could be used as one of scientific base datum to determine whether they are naturally occurring or not, including ingredients and their percentage, manufacturing processes, other papers relating to naturally occurring levels of them, and so on.
Keywords
food additives; livestock products; nitrate; nitrite; ion chromatography;
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