Natural Occurrence of Fumonisin $B_{1}$ and $B_{2}$ in Corns Imported from U.S.A

미국산 옥수수의 Fumonisin $B_{1}$$B_{2}$ 오염현황

  • Published : 1999.08.31

Abstract

Eighty corn samples, which imported from U.S.A between 1995 and 1996, were analyzed for fumonisin $B_{1}\;(FB_{1})$ and $B_{2}\;(FB_{2})$ contamination. The total fumonisin level and mean from 80 imported samples showed 0(limited detection level)-$65.9\;{\mu}g/g$ mgand $6.9\;{\mu}g/g$, respectively. $FB_{1}$ was detect in 57 (71.3%) from 80 samples at the concentrations ranging from 0 to $48.8\;{\mu}g/g$, while $FB_{2}$ was detected in 49(61.3%) at concentrations ranging from 0 to $17.1\;{\mu}g/g$. The total fumonisin incidence analyzed from 80 samples were 37.5%, 42.6 and 19.9% for concentrations ranging from below $1\;{\mu}g/g$, between 1.1 and $10\;{\mu}g/g$ and above $30\;{\mu}g/g$, respectively. The total fumonisin level containing below $1\;{\mu}g/g$ from samples imported in 1995 and 1996 was 47.7% (21/44) and 29.4 (10/34), while total fumonisin level containing above $10{\mu}g/g$ was 47.77% (21/44) and 29.4 (10/34), respectively. In the meanwhile, the fumonisin $B_{1}$ and $B_{2}$ containing below $1\;{\mu}g/g$ from 80 samples imported between 1995 and 1996 was 38.8% and 67.5%, while fumonisin $B_{1}$ and $B_{2}$ containing above $10{\mu}g/g$ was 12.5% and 5%, respectively.

Keywords

$fumonisin\;B_{1}$;$B_{2}$;imported corn;HPLC