<In addition, the agency says melamine has been found in some pet food products in rice protein concentrate from China. Those products have been withdrawn from market.
Melamine has also been identified in the urine of pigs at a California farm. State health officials say the melamine is believed to have come from rice protein concentrate in pet food added to animal feed.
The F.D.A. says it is looking for any threat to the human food supply. The agency says it is now testing samples from all shipments of rice protein concentrate from China. The agency says it is also testing all shipments of wheat gluten from China.
[日积月累]集中来自……