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Heavy metal Contamination of Vegetables

Journal of Environmental Protection 2016年第7期7卷 996-1004页

作者： Shobhana Ramteke Bharat Lal Sahu Nohar Singh Dahariya Khageshwar Singh Patel Borislav Blazhev Laurent Matini School of Studies in Chemistry/Environmental Science Pt. Ravishankar Shukla University Raipur India Bulgarian Food Safety Agency Central Laboratory for Chemical Testing and Control Sofia Bulgaria Department of Exact Sciences Marien Ngouabi University Brazzaville Congo

In India, several (>50) vegetables are widely used as food due to their high nutrition values. However, vegetables in industrial area are getting contaminated with heavy metals by disturbing biological and biochemical processes in the human body. In present study, the risk of human health by heavy metals (Fe, As, Cr, Mn, Cu, Zn, Pb, Cd and Hg) through the intake of common vegetables i.e. Solanum lycopersicum, Solanum melongena, Amaranthus tricolor L., Chenopodium album L., Spinacia oleracea and Coriandrum sativum obtained from the largest coal burning basin, Korba, India is described . The concentration of Fe, As, Cr, Mn, Cu, Zn, Cd, Pb and Hg in the soils (n = 6) was ranged from 18,328 - 37,980, 85 - 105, 34 - 72, 314 - 760, 146 - 165, 126 - 164, 1.11 - 1.39, 116 - 148 and 0.11 - 0.21 mg/kg with mean value (p = 0.05) of 28,011 ± 6582, 96 ± 6, 57 ± 11, 597 ± 148, 153 ± 5, 145 ± 11, 1.26 ± 0.10, 133 ± 11 and 0.16 ± 0.03 mg/kg, respectively. The contamination, sources and bioaccumulation, pollution and health risk indices of the heavy metals i.e. As, Fe, Cr, Mn, Cu, Zn, Pb, Cd and Hg in the plants are described.

关键词： Heavy metals Vegetables Contamination metal pollution index Health Risk index

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Proximate and Elemental Composition of Important Fish Species in Makkah Central Fish Market, Saudi Arabia

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Food and Nutrition Sciences 2016年第6期7卷 429-439页

作者： Shady M. El Shehawy Ali A. Gab-Alla Hamed M. A. Mutwally Biology Department Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia Food Industries Department Faculty of Agriculture Mansoura University Mansoura Egypt Marine Biology Department Faculty of Science Suez Canal University Ismailia Egypt

In spite of the established nutritive value of seafood, fishes have a special ability to store some toxic substances such as heavy metals because of its own respiration system. The goal of current study was to explore the proximate chemical composition, minerals content and levels of heavy metals in edible portions of some important commercial fish species available at Makkah Central Fish Market, Saudi Arabia. The obtained results showed that Indian oil sardine fish had the highest value of crude oil (dry weight) recorded 38.00%, while, rusty parrot fish sample had the least of 1.17%. In contrast, rusty parrot fish had the highest value of crude protein represented 90.75% (dry weight), meanwhile, Indian oil sardine had the least of 54.19%. Consuming about 250 g of Indian oil sardine will cover 100% of Fe RDA (Recommended Dietary Allowances), eating 500 g of the same fish will cover about 30% of Ca RDA. While, 500 g of gilt head bream which has the highest content of K, Na and Mg will cover about 11.7%, 1.5% and 4.1% of these minerals RDA, respectively. As physical hazards, fourteen samples from the thirty three studied samples exceeded the permissible limit of Pb and Cd representing about 42%. Therefore, it is strongly recommended not to eat head, gills or viscera of all fishes.

关键词： Fish Proximate Chemical Composition Minerals Heavy metals metal pollution index

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