Studies on the Use of Sulfites to Control Shrimp Melanosis (Blackspot)

摘要

Shrimp melanosis, commonly known as 'blackspot' is a harmless but objectionable surface dicoloration caused by polyphenoloxidase enzyme systems which remain active during refrigeration or ice storage. In the early 1950's sulfiting agents, particularily sodium bisulfite was first introduced to prevent or inhibit melanosis, thus yielding a more valuable harvest (1). Such use of sulfites was 'prior sanctioned' by the U.S. Food and Drug Administration (FDA) in 1956 (2). More recent FDA decisions reaffirmed the practice (3), but continuing regulatory scrutiny could restrict or eliminate the application of sulfite on shrimp.