Open Access Open Access  Restricted Access Subscription or Fee Access

Occurrence of Trace Metals in Fresh and Canned Foods

Smruthy Marshal, Bala Murugan, Anu Gopinath, Rose Philo K.J.


Food production and supply does not always tally with the demand or meets of the people. Food preservation methods have been followed by men since times immemorial. Canned fish and vegetables are the most popular processed foods in the developed world since it is convenient and affordable. Fish is widely consumed by humans because it has high protein content, low saturated fat and also contains omega 3 fatty acids known to support good health. The indisputable benefits derived by fish consumption may be offset by the presence of toxic metals in their meat, such as Cd, Pb, Hg, etc. which is present in many fish species often at levels exceeding the safety standards established by legislation of the various countries. Hence, it is necessary to analyse the presence of trace metals in fresh and canned food products and to carry out a comparative study to ensure food safety.

Full Text:



Mansour, et al. Monitoring of pesticides and heavy metals in cucumber fruits produced from different farming system, Chemosphere. 2009; 75: 601–9p. [2] Weldegebriel, et al. Concentration levels of metals in vegetables grown in soils irrigated with river water in Addis Ababa, Ethiopia, Ecotoxicol Environ Saf. 2012; 77: 57–63p. [3] N.O. Boadi, et al. Heavy metal contamination in canned fish marketed in Ghana, Am J Sci Ind Res. 2011; 2(6): 877–82p. [4] Al-Busaidi, et al. Toxic metals in commercial marine fish in Oman with reference to national and international standards, Chemosphere. 2012; 84: 67–73p. [5] Santos, et al. A survey of arsenic in foodstuffs on sale in the United Kingdom and imported from Bangladesh, Sci Total Environ. 2005 337: 23–30p. [6] Ikem, et al. Assessment of trace metals in canned fishes (mackerel, tuna, salmon, sardines and herrings) marketed in Georgia and Alabama (United states of America), J Food Compos Anal. 2005; 18: 771–87p. [7] S. Mol, et al. Levels of heavy metals in canned bonito, sardines, and mackerel produced in Turkey, Biol Trace Elem Res. 2011; 143: 974–82p. [8] F.E. Khansari, et al. Heavy metals content of canned tuna fish, Food Chem. 2005; 93: 293–6p. [9] Y. Si, et al. Survey of lead, cadmium, iron, copper and zinc in kasar cheese, Food Add Contam. 2003; 20: 464–9p. [10] D. Bakircioglu, et al. Determination of some traces metal levels in cheese samples packaged in plastic and tin containers by ICP-OES after dry, wet and microwave digestion, Food Chem Toxicol. 2011; 49: 202–7p. [11] Loutfy, et al. Analysis and exposure assessment of some heavy metals in foodstuffs from Ismailia city Egypt, Toxicol Environ Chem. 2012; 94: 78–90p


  • There are currently no refbacks.