The accumulation of dioxins in silage corn grown in the open field
2003
Uegaki, R. (National Inst. for Agro-Environmental Sciences, Tsukuba, Ibaraki (Japan)) | Kurokawa, S. | Yoshimura, Y. | Seike, N. | Eun, H. | Kuwahara, M. | Ueji, M.
Synopsis Ryuichi UEGAKI. Shunji KUROKAWA, Yoshinori YOSHIUURA, Nobuyasu SEIKE, Heesoo EUN, Masahiko KUWAHARA and Masako UEJI (2003) : The Accumulation of Dioxins in Silage Corn Grown in the Open Field. Grassland Science 49, 346-351. There is growing concern over food prepared from farm animals contaminated with polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated-dibenzofurans (PCDFs), and coplanar PCBs (Co-PCBs) (these chemical groups are collectively called dioxins in this paper). Our study was undertaken in order to know the fate of dioxins in silage corn during the growth. We made four experiments to clarify (1) the temporal change of dioxin concentrations with the growth of corn, (2) the influences of dioxin concentrations of soil and atmosphere to the dioxin concentrations of corn, (3) the dioxin distributions within the part of the corn, and (4) the change of dioxin concentrations of corn varieties with increase of growing day. The results were as follows. Dioxin concentration and isomer profile of silage corn were mostly influenced from atmospheric condition. The concentrations were increased with the increase of corn growing days, but they were not influenced variety of silage corn.
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