Determination of heavy metals concentration in squids in Kota Kinabalu

Ganesan Menon Neelamegam (2010) Determination of heavy metals concentration in squids in Kota Kinabalu. Universiti Malaysia Sabah. (Unpublished)


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The species of Loligo chinensis and Lollgo duvaucelli from Kota Kinabalu were sampled and analyzed for seven different heavy metals include Cd, Pb, Cu, Zn, Fe, Ni and Mn by using two different methods; wet digestion method and dry ashing method. The differences in heavy metals concentration among different squid species were found not significant. The concentration of heavy metals in both squid species may reflect their similar morphology and environmental factors. In this study, both Loligo chinensis and Lollgo duvaucelli detected to accumulate similar amount of metal In both methods although there is difference between the metal concentration values obtained which is not significant except for lead in wet digestion method. Comparing metal concentrations in squids among both methods used indicates that dry ashing method is not suitable for determination of metals with lower melting point The high concentration of zinc in both species and both methods reflects that zinc is needed by the squids as a nutrient and plays important roles In the growth of squids. Comparison with the Malaysian Food Act 1983 and Food Regulation 1985 shows that cadmium and lead surpass the maximum limit permitted in seafood; whereas for copper and zinc, the amount is still not exceeding the current legislative limit for squid.

Item Type: Academic Exercise
Uncontrolled Keywords: Squids, Heavy metals concentration, Cd, Pb, Cu, Zn, Fe, Ni, Mn
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering > TD172-193.5 Environmental pollution
T Technology > TX Home economics > TX1-1110 Home economics > TX341-641 Nutrition. Foods and food supply
Divisions: SCHOOL > School of Food Science and Nutrition
Depositing User: ADMIN ADMIN
Date Deposited: 23 May 2012 08:41
Last Modified: 23 Oct 2017 11:31

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