期刊
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
卷 20, 期 4, 页码 383-388出版社
ELSEVIER
DOI: 10.1016/j.sjbs.2013.04.006
关键词
Spirulina; Cyanobacteria; Heavy metals; Coupled Plasma Mass
类别
资金
- King Saud University, Deanship of Scientific Research, College of Science Research Center [Bot/2010/38]
For consumption of health foods of Spirulina, by the general public, health food stores are increasingly offering more exotic products. Though Spirulina consumption is growing worldwide, relatively few studies have reported on the quantities of heavy metals/minerals they contain and/or their potential effects on the population's health. This study reveals the concentrations of six typical heavy metals/minerals (Ni, Zn, Hg, Pt, Mg, and Mn) in 25 Spirulina products commercialized worldwide for direct human consumption. Samples were ground, digested and quantified by Coupled Plasma Mass Spectroscopy (ICP-MS). The concentrations (mg/kg d.w.) were range from 0.001 to 0.012 (Pt) followed by 0.002-0.028 (Hg), 0.002-0.042 (Mg), 0.005-2.248 (Mn), 0.211-4.672 (Ni) and 0.533-6.225 (Zn). The inorganic elements of the present study were significantly lower than the recommended daily intake (RDI) level of heavy metal elements (mg/daily) Ni (0.4), Zn (13), Hg (0.01), Pt (0.002), Mg (400) and Mn (4). Based on this study the concentration of inorganic elements was not found to exceed the present regulation levels, and they can be considered as safe food. (C) 2013 Production and hosting by Elsevier BY. on behalf of King Saud University.
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