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Decrease of arsenic in edible brown algae Hijikia fusiforme by the cooking process
DOI:10.1002/aoc.1102.png)
摘要
En 中文
A type of edible sea brown algae, Hijikia fusiforme, contains a high concentration of inorganic arsenic. In July 2004, the British Food Standard Agency (FSA) advised people not to eat a type of seaweed called Hijiki because it contained high levels of arsenic. We examined the removal of inorganic arsenic compounds in H. fusiforme by performing a soaking procedure with pure water, and the excretion of arsenic contained in Hijiki was investigated in mice. The total arsenic was measured by hydride generation-atomic absorption spectrometry (HG-AAS), and the speciation analysis of arsenic was monitored by high-performance liquid chromatograph coupled with inductively coupled plasma mass spectrometry (HPLC/ICP-MS). It was observed that 28.2-58.8% (w/w) of the total arsenic in edible alga H.fusiforme was eluted with water, and 49.3-60.5% (w/w) of arsenic in the residue of Hijiki was dissolved by cooking. Thus, 88.7-91.5% (w/w) of arsenic in Hijiki is removable by the cooking process. When Hijiki was given to mice, dimethylarsinic acid (DMAA) was mainly metabolized in urine. It became evident that soaking with water and cooking are effective for removing arsenic in edible brown algae. Copyright (c) 2006 John Wiley & Sons, Ltd.
Keyword:
Hijikia fusiforme
arsenic
HPLC/ICP-MS
cooking process
marine food
seaweed
arsenosugar
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引用论文
Study of in vitro cytotoxicity of a water soluble organic arsenic compound, arsenosugar, in seaweed
TOXICOLOGY
IF4.6

