Principal Component Analysis of Time-Related Changes of Some Essential Mineral Contents of Canned Silver Carp (Hypophthalmichthys molitrix) in Different Filling Media Maryam Vafaei 1 & Mahmood Naseri 1 & Elahe Abedi 2 & Seyedeh Sedigheh Babaei 1 & Ahmad Imani 3 & Luisa Torri 4 Received: 13 February 2019 /Accepted: 19 March 2019 # Springer Science+Business Media, LLC, part of Springer Nature 2019 Abstract 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. No changes were detected in the mineral content of cans after 1-year storage in comparison to fresh cans, while the content and daily intake of zinc, iron, calcium, copper, and sodium were significantly decreased in all filling media after 3, 5, and 7 years of storage. The first-order reaction model was detected for reduction of mineral contents in filling medium. Post-storage daily intake of iron, sodium, calcium, zinc, and copper was 0.06 up to 0.18, 1.9 up to 9.7, 1.8 up to 9.1, 0.02 up to 0.10, and 0.004 up to 0.02 mg/day/person, respectively. Filling medium had significant effects on estimated daily intake of zinc, sodium, calcium, and copper in long-term sorted cans. PC1 and PC2 explained 93.7% of the total variance of the dataset, contributing 68.7 and 20.5%, respectively. Keywords Canned filling medium . Kinetic reaction . Long-term storage . Essential minerals . PCA analysis Introduction Benefits of fish consumption for human health and well-being are now undeniable. Owing to the outbreak of bovine spongiform encephalopathy (BSE), foot-and-mouth disease, Crimean Congo Haemorrhagic Fever (CCHF), and avian influ- enza in many parts of the world, people have become more interested in seafood consumption, mainly in European coun- tries and the USA [1, 2]. In addition, many nutritionists believe that fish is a reliable source of vitamins and minerals with con- siderably indispensable functions within the body, to the extent that many anthropological ditches have revealed the importance of lacustrine food resources on human being evolution [3]. Canned fish products are most commercialized ones since they are accessible and affordable [4–6]. Silver carp due to its higher worldwide production rate (5.3 million metric tons [7]), nutritional value, and availability represented a new and suit- able choice for canning [8]. * Elahe Abedi Elaheabedi1389@gmail.com; e.abedi@fasau.ac.ir Maryam Vafaei vafaeimaryam@yahoo.com Mahmood Naseri mnaseri@shirazu.ac.ir Seyedeh Sedigheh Babaei babaei.sedigheh@gmail.com Ahmad Imani a.imani@urmia.ac.ir Luisa Torri l.torri@unisg.it 1 Department of Natural Resources and Environmental Engineering, School of Agriculture, Shiraz University, Shiraz, Fars P.O.Box 71441-65186, Iran 2 Department of Food Science and Technology, Fasa University, Fasa, Iran 3 Department of Fisheries, Faculty of Natural Resources, Urmia University, Nazlou Campus, 11th km of Serow Road, Urmia, Iran 4 University of Gastronomic Sciences, Piazza Vittorio Emanuele 9, 12042 Bra, Cuneo, Italy Biological Trace Element Research https://doi.org/10.1007/s12011-019-01707-5