Atlantic salmon is becoming an important economical aquatic
food product in China due to its high nutritional value, excellent
colour and taste. Fish and fishery products are perishable foods
and generally spoil faster than other muscle materials. The major
problem associated with seafood and fishery products is their sus-
ceptibility to putrefaction due to contamination by spoilage micro-
organisms. The spoilage of fish is a complex process with
implicated physical, chemical and microbiological mechanisms.