Predictive testing of seafood cans and pouches by electrochemical impedance spectroscopy
Predictive testing of seafood cans and pouches by electrochemical impedance spectroscopy
Date
2004
Authors
Ashraf, P.M.
Ravishankar, C.N.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologis(India)
Abstract
Studies were conducted to evaluate the performance of retortable pouches and coated
food cans using Electrochemical Impedance Spectroscopy (EIS). New unused retortable
pouches and tin free steel cans were compared with the corresponding processed seafood
cans for impedance. The pore resistance (Rp) of lids of tin free steel cans was reduced
significantly on storage compared to the body which implies that the former was more
susceptible for corrosion and deterioration. Processed retort pouches were superior to cans
after two years of storage, which follows equivalent circuit RC. See-through pouches have
about 2% reduction in pore resistance after thirteen months compared to the unused pouches
The results reveal that EIS studies can be used for predicting the quality of cans and pouches.
Description
Keywords
seafood, cans, retortable pouches, electrochemical impedance spectroscopy
Citation
Fish Technol. 41(1): 45-48