Occurrence of fumonisins and aflatoxins in cereals from markets of Hebei Province of China.
Fumonisins B₁, B₂ and B₃ (FB₁, FB₂ and FB₃) and aflatoxins B₁ (AFB₁), B₂ (AFB₂), G₁ (AFG₁) and G₂ (AFG₂) are both major mycotoxins of food concern, because of their wide range of concentration and possible co-occurrence. Therefore, a contamination survey in corn and wheat flour by liquid chromatography-tandem mass spectrometry was carried out. Quantification of fumonisins and aflatoxins was based on internal calibration (by the use of ¹³C₃₄-fumonisin) and external calibration, respectively. Fumonisins were detected in 95% of corn samples and in 7% of wheat flour samples, with the mean level (FB₁ + FB₂ + FB₃) of 441 µg kg⁻¹ and 0.09 µg kg⁻¹, respectively. Low levels of aflatoxins were detected in 37% of the samples with a mean level (B₁ + B₂ + G₁ + G₂) of 0.12 µg kg⁻¹. Fumonisins and aflatoxins were not detected in 29% of the samples analysed. Simultaneous occurrence of fumonisins and aflatoxins was observed in 12% of samples.
a Hebei Provincial Center for Disease Control and Prevention , Shijiazhuang , Hebei Province , China.
Y P
YP
Liu
L X
LX
Yang
N J
NJ
Yang
B
B
Dong
L L
LL
Cao
K
K
Wang
L X
LX
Yang
D000348:Aflatoxins / Q000032:analysis* / Q000737:chemistry; D002138:Calibration; D002273:Carcinogens / Q000032:analysis* / Q000737:chemistry; D002681:China; D002851:Chromatography, High Pressure Liquid; D002523:Edible Grain / Q000737:chemistry / Q000191:economics; D005433:Flour / Q000032:analysis / Q000191:economics; D005506:Food Contamination; D005513:Food Inspection / Q000379:methods; D037341:Fumonisins / Q000032:analysis* / Q000737:chemistry; D007166:Immunosuppressive Agents / Q000032:analysis; D007536:Isomerism; D012639:Seeds / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D014908:Triticum / Q000737:chemistry* / Q000191:economics; D003313:Zea mays / Q000737:chemistry* / Q000191:economics
D000348:Aflatoxins; D002273:Carcinogens; D037341:Fumonisins; D007166:Immunosuppressive Agents
aflatoxin; corn; fumonisin; liquid chromatography–tandem mass spectrometry; wheat flour