Tissues of Eastern (Crassostrea virginica) and Korean (Crassostrea gigas) oysters were analyzed for proximate composition; elemental, amino acid, and pesticide contents; and selected enzyme activities. Eastern oysters contained more nitrogen but a lower ash and lipid content. In general, the amino acid and elemental contents were higher in the Korean species. Neither the Eastern nor Korean species contained pesticides or PCBs in an amount greater than 0.1 ppm. Peroxidase activity was greater in Korean oysters while lipase activity was higher in the Eastern species. Lipoxygenase was not detected in either species.

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Author notes

1Biochemistry and Nutrition.