Advance Journal of Food Science and Technology 3(4): 303-307, 2011.
Toxicity and Antioxidant Tests of Morinda citrifolia (noni) Seed Extract. 
West BJ, Jensen CJ, Palu AK, Deng S.

Nitrates, nitrites, phytic acid, oxalic acid, as well as aflatoxin B1, B2, G1 and G2 were not detected in a noni seed extract. The extract was non-cytotoxic, did not produce symptoms of toxicity in a subacute oral toxicity, and did not display any genotoxic potential. It did exhibit significant antioxidant activity in vitro. (original abstract available at