r(III)在钝顶螺旋藻中的生物富集及其对螺旋藻生长的影响
Bioaccumulation of Cr(III) in S pirulina platensis and its effection on the cultivation of S pirulina platensis
本文研究了钝顶螺旋藻对Cr(III)的吸收和生物转化,用ICP-MS-HPLC分析了无机Cr(III) 经螺旋藻吸收后的存在价态;以及Cr(III)对钝顶螺旋藻的生长影响.结果表明,钝顶螺旋藻对Cr(III)具有良好的富集和生物转化能力,在本实验中总铬富集量可达到173.17mg/g,有机化程度也高达96.99％.通过ICP-MS-HPLC分析表明没有有毒的Cr(VI)的存在.此外,由干重结果显示低浓度的Cr(III) (< 234.38ppm)促进螺旋藻的生长,高浓度(>234.38ppm)则抑制,并导致螺旋藻形态异常.在一定范围内螺旋藻能高效富集Cr(III),能作为安全营养的保健食品,螺旋藻抗高Cr(III)压,吸附高浓度Cr(III)的能力使其用于环境中Cr(III)污染的去除.
In this paper we investigated the bioaccumulation and biotransformation of Cr(III) in S pirulina platensis with ICP-MS-HPLC, as well as the effection of Cr(III) on the growth of S pirulina platensis. Chromium was accumulated efficiently in S. platensis during cultivation with chromium concentration increasing in the medium, the yield of 173.17 mg/g total Cr was achieved in the test. The organic chromium accounted for 96.04% of the total accumulated chromium. The results of dry weight and morphology of sprirulian platensis indicated that chromium concentrations below 234.38mg/l were found to stimulate the algae growth, however, above 234.38 mg/1, chromium did harm to this algae growth. It was testified that the S pirulina platensis could be used as a safety and nutritional food carrier for the supplement of Cr(III),without the yield of Cr(VI) in adapted concentration，and may be used to deal with the contamination of environment.
黄昆仑、张方方、许文涛、李元飒、罗云波、王颖
环境污染、环境污染防治环境生物学生物科学现状、生物科学发展
钝顶螺旋藻，Cr(III)， ICP-MS-HPLC，生物富集，生物转化
S pirulina platensis Cr(III) ICP-MS-HPLC bioaccumulation biotransformation
黄昆仑,张方方,许文涛,李元飒,罗云波,王颖.r(III)在钝顶螺旋藻中的生物富集及其对螺旋藻生长的影响[EB/OL].(2008-04-09)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200804-312.点此复制
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