Research on the detection of the volatile substances changes of canned oil skipjack during storage

Electronic nose combining with headspace solid phase micro extraction gas chromatograph-mass spectrometer ( HSSPME-GC-MS) were used to identify the variety and amount of volatile flavor compounds in canned oil skipjack during storage.The results showed that the electronic nose was capable of rapid and sensitive detect of the smell changes of canned oil skipjack during storage.The application of GC-MS in canned oil skipjack had identified 47 kinds of volatile compounds during its storage. Furan compounds and nitrogen-containing compounds were the main volatile components, where in the relative amounts of furan compounds decreased with the extension of storage time from 51.42% of the first delivery to 41.20% after being stored for four years.It proved that the electronic nose could be used to distinguish the storage time of cans and volatile flavor compounds of canned tuna warranty expired had a big change.