Removal of phenolic endocrine disruptors by Portulaca oleracea
Removal of phenolic endocrine disruptors by Portulaca oleracea
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DOI：
10.1263/jbb.103.420
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发表时间：
2007-05-01
影响因子：
2.8
通讯作者：
Hirata, Kazumasa
中科院分区：
文献类型：
--
作者：
Imai, Sofue;Shiraishi, Atsuhiko;Hirata, Kazumasa
在日本，从春季到秋季流行的园林植物马齿苋（Portulacaoleracea）显示出有效地从水中去除双酚A（BPA）的能力，双酚A是众所周知的具有雌激素性质的内分泌干扰化合物（EDC）。在水培条件下，当全株重量与水体积的比例为1 g：25 ml时，50 μ M的BPA在24 h内几乎完全去除。水的雌激素活性随着BPA的消除而降低。该植物还快速去除了其他具有酚基的EDC，包括辛基酚（OP）、壬基酚（NP）、2，4-二氯酚（2，4-DCP）和17 β-雌二醇，从而去除了内分泌干扰活性。此外，通过在黑暗中培养，通过15 ℃至30 ℃的温度范围，或通过4至7的pH范围，不影响P. oleracea去除BPA的能力。此外，P. oleracea单独去除BPA、NP和OP的能力与它们全部存在时相同。这些结果表明，甘蓝是一个有前途的材料，为实际的植物修复垃圾渗滤液和工业废水污染的测试内分泌干扰物。
Portulaca oleracea, a garden plant prevalent from spring to autumn in Japan, showed the ability to efficiently remove from water bisphenol A (BPA), which is well known as an endocrine disrupting compound (EDC) having estrogenic properties. In water culture, 50 mu M BPA was almost completely removed within 24 h when the ratio of whole plant weight to the water volume was set up at 1 g to 25 ml. The estrogenic activity of the water decreased in parallel with the elimination of BPA. This plant also rapidly removed other EDCs having a phenol group including octylphenol (OP), nonylphenol (NP), 2,4-dichlorophenol (2,4-DCP) and 17 beta-estradiol and, thereby, removed the endocrine disrupting activities. In addition, the ability of P. oleracea to remove BPA was not affected by BPA concentration (up to 250 mu M), by cultivation in the dark, by temperatures ranging from 15 C to 30 C, or by pH ranging from 4 to 7. Moreover, the ability of P. oleracea to individually remove BPA, NP, and OP was the same as when they were all present. These results suggest that P. oleracea is a promising material for practical phytoremediation of landfill leachates and industrial wastewater contaminated with the tested EDCs.