Abstract
The Volta clam Galatea paradoxa is a highly priced shellfish providing nutrition, jobs and poverty alleviation for the inhabitants of the lower Volta estuary. Clams are filter feeders straining particulate materials in the surrounding water, thus concentrating microorganisms and other metal elements in the gut and mantle which present possible health hazards. The elemental composition of the water, clam mantle, gut, shell, and bottom sediments were determined using Neutron Activation Analysis for the presence of Ca, Cl, Cu, Mg, Mn, V, Fe, Co, Br, Na and K. Proximate analysis of the mantle for the levels of protein, fat, carbohydrate, ash, wood fiber, phosphorus, free fatty acids and energy were carried out using the method of the Association of Official Analytical Chemists. The riverine water was laden with heavy metals V, Co, Cu, Mn, and Fe, as well as Al. These same metallic elements were detected in higher concentrations in the bottom sediments. Bioaccumulation factor (BAF) which is the measure of the distribution of heavy metals between water and biota (Clam mantle and gut), ranged from 2 to 145 times, depending on the type of contaminant. The clam meat contained high protein (15.3 ± 0.2%), no crude fiber, low fat content (1.80 ± 0.11%), fatty acids as oleic (25.2 ± 0.1%), energy (85.5 ± 0.21 kcal/100 g), carbohydrates (22.10 ± 0.03%), P (485 ± 1 mg/100 g), Ca (793 ± 75 mg/kg), Mg (860.3 ± 90.0 mg/kg). The high concentration of Ca (21,402.7 ± 797.0 mg/kg), Fe (18,071.2 ± 94.0 mg/kg), K (96 ± 14 mg/kg), Mg (540.8 ± 81.1 mg/kg), Na (4,570.0 ± 0.2 mg/kg) gives credence to the use of the shell for poultry feed mineral supplements, and in the emulsion paint manufacturing industry.
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References
Lawson RM (1972) The changing economy of the Lower Volta 1954–1967. A study in the dynamics of rural economic growth. Oxford Universities Press, London, p 1
Whyte SA (1981) VBRP Technical Report 2B, 7
Yankson K (2004) Fish from the shell: it’s potential in the quest for adequate protein in Ghana. Media Graphics and Press Ltd, Kokomlemle
Gordon C, Amatekpor JA (1999) The sustainable integrated development of the Volta Basin of Ghana. VBRP, Goldtype Press, Accra, p 159
Ofori-Danson PK, Amoah CM (2005) VBRP Technical Report, Univ. of Ghana 23
Obirikorang KA, Adjei-Boateng D, Amisah S (2009) Water Qual Expo Health 1:191–201
Swift J, Duran B, Skinner T, Snow-Cotter S, Babb-Brott D (1995) Massachusetts Aquaculture White paper––Sea food/Public Health. http://www.state.ma.us/czm/wpsfsh.htm
Atlas RM (1995) Principles of microbiology Wm C. Brown Publishers, New York
Ekanem EO, Adegoke GO (1995) Food Microbiol 12:381
Villalobos de Bastardo LB, Elguezabal Aristizabal L (2001) Acta Cient Venez 52:55–61
Rehnstam-Holm AS, Hernroth HB (2003) J Human Environ 34:139
ANON (2007) http://www.bact.wiss.edu/Microtextbook/index.php?name=Sections&req=viewarticle&arti
Silva M, Vieira RHSF, Menezes FGR, Fonteles–Filho AA, Torres RCO, Santanna EA (2004) Braz J Microbiol 35(1–2):126
Etuk EUI, King RP, Ina MK (2000) Ecol Food Nutr 39(1):83
Clayton WEL (2006) Aquaculture Update no. 97
Hernroth B, Hansson-Conden A-C, Rehnstam-Holm A-S, Ginones R, Allard A (2002) Appl Environ Microbiol 68:4523
Alabaster JS, Llyod R (1980) Water quality criteria for fish, 2nd edn. Butterworths, London, p 546
Ekanem EO, Achinewhu SC (2000) J Food Process Preserv 24(5):365
Serfor-Armah Y, Samlafo BV, Yeboah PO (2009) J Appl Sci Technol (JAST) 14(12):117
International Atomic Energy Agency (IAEA) (1990) Practical aspects of operating neutron activation laboratory. IAEA-TECDOC-564, IAEA, Vienna, pp 197
Association of Official Analytical Chemists (AOAC) (1975) Methods of analysis of the Association of Official Chemists. AOAC, Washington, DC
Adebayo-Tayo NC, Onilude AA, Ogunjobi AA, Adejoye DO (2006) World Appl Sci J 9(2):87
Chevereuil M, Blanchard M, Teil MJ, Carru M, Testard P, Chesterikoff M (1996) Water Air Soil Pollut 88:37
McLeod D (2002) Bull Aquacult Assoc Can 102:8–16
Glanze WD (1996) Mosby medical encyclopedia. C.V. Mosby, St. Louis
Seeley RR, Stephens TD, Tate P (1998) Anatomy and physiology. McGraw-Hill, New York, p 1097
Fox SI (1999) Human physiology. McGraw-Hill, New York, p 731
Turkdogan MK, Kilicel F, Kara K, Tuncer I, Uygan I (2002) Environ Toxicol Pharmacol 13:175–179
El-Shenawy NS (2004) Environ Toxicol 19(2):143
Witney E, Rolfes SR (2005) Understanding nutrition. Thompson Learning Inc, New York
Wardlaw GM, Smith A (2006) Contemporary nutrition. McGraw-Hill, New York
Bakhru HK (2002) Vitamins that heal natural immunity for better health. Orient Paperbacks, New Delhi
Anani C (1999) Sed Geol 128:83–98
Shu-Ying GAO, Dong-Liang ZOV (1994) Chin J Oceanogr 12(4):325–330
WHO (2000) Safety evaluation of certain food additives and contaminants. WHO Food additives series, Cambridge
Ekanem EO, Achinewhu SC (2006) J Food Process Preserv 30(3):247
Acknowledgments
The authors are grateful to Mr. Y. Amponsah and Mr. E. Ansah for their technical assistance. The financial support through the University of Ghana from the Volta Basin Research Project is duly acknowledged. We also thank Mr. Nii Noi E. Osuteye for his secretarial support.
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Serfor-Armah, Y., Amoah, C.M., Odamtten, G.T. et al. Determination of elemental and nutrient composition of water, clam mantle and shell of the Volta clam (Galatea paradoxa) using neutron activation analysis. J Radioanal Nucl Chem 286, 39–45 (2010). https://doi.org/10.1007/s10967-010-0664-8
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DOI: https://doi.org/10.1007/s10967-010-0664-8