Nitrate and nitrite content in bottled beverages by ion-pair high-performance liquid chromatography.
Nitrate and nitrite levels in six types of beverages--total of 292 individual samples from 73 brands (four bottles each)--from Guangzhou city in China were evaluated by ion-pair high-performance liquid chromatography. All samples contained nitrate. Nitrate and nitrite ranges were 0.43-46.08 and <0.005-0.501 mg/L, respectively. The highest nitrate levels were detected in tea drinks (46.08 mg/L). For nitrite, the highest levels were found in fruit juice drinks (0.501 mg/L). Three brands of fruit juice drinks exceeded the Joint FAO/WHO Expert Committee on Food Additives provisional guideline value of 0.2 mg/L for nitrite and were considered to be hazardous for public health. This study supplies useful information on safety of Chinese bottled beverages.
a Guangdong Provincial Key Laboratory of Food , Nutrition and Health, School of Public Health, Sun Yat-Sen University , Guangzhou , China.
Yang
Y
Song
Gui-Fang
GF
Deng
Xiang-Rong
XR
Xu
Yong-Hong
YH
Chen
Feng
F
Chen
Hua-Bin
HB
Li
D001628:Beverages / Q000032:analysis*; D002253:Carbonated Beverages / Q000032:analysis; D002681:China; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005638:Fruit; D008452:Maximum Allowable Concentration; D009566:Nitrates / Q000032:analysis*; D009573:Nitrites / Q000032:analysis*; D015203:Reproducibility of Results; D013662:Tea / Q000737:chemistry
D009566:Nitrates; D009573:Nitrites; D013662:Tea
HPLC; beverage; food analysis; food safety; nitrate; nitrite