1. Dept. of Nutrition and Food Sciences; Univ. of Rhode Island; West Kingston; RI; U.S.A
2. Dept. of Animal Science; Univ. of Connecticut; Storrs; CT; U.S.A
3. Dept. of Animal and Food Sciences; Univ. of Kentucky; Lexington; KY; U.S.A
4. Rhode Island Dept. of Health; Food Chemistry Laboratory; Providence; RI; U.S.A
5. Natl. Technical Services; USDC/NOAA/NSIP; Gloucester; MA; U.S.A