Principal Component Analysis of Time-Related Changes of Some Essential Mineral Contents of Canned Silver Carp (Hypophthalmichthys molitrix) in Different Filling Media.

The kinetic reaction for changes in some essential mineral contents (iron, zinc, calcium, sodium, and copper) of silver carp canned in sunflower oil, soybean oil, olive oil, and brine as filling media was assessed after a short- (1 year) and long-term storage (3, 5, and 7 years). The mineral nutrition value of cans was also determined to take into account the changes in estimated daily intake (EDI) of elements during storage and then clustered by principal component analysis (PCA). Results revealed that the reduction of trace elements in brine was higher than in other filling media due to formation of insoluble metal hydroxide.