A thirteen-week oral toxicity study of annatto extract (norbixin), a natural food color extracted from the seed coat of annatto (Bixa orellana L.), in Sprague–Dawley rats

Akeo Hagiwara, Norio Imai, Toshio Ichihara, M. Sano, Seiko Tamano, H. Aoki, Kiyomitsu Yasuhara, Takatoshi Koda, M. Nakamura, Tsuyoshi Shirai

Food and Chemical Toxicology · 2003 · 51 citations · 14 references

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