Using a Novel Petroselinic Acid Embedded Cellulose Acetate Membrane to Mimic Plant Partitioning and In Vivo Uptake of Polycyclic Aromatic Hydrocarbons
文献类型：期刊论文
| 作者 | Li, Xiuying ; Zhu, Yanhong ; Wu, Tong ; Zhang, Shuzhen ; Christie, Peter |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2010 |
| 卷号 | 44期号:1页码:297-301 |
| 中文摘要 | A new type of composite membrane is introduced to mimic plant uptake of hydrophobic organic contaminants (HOCs). Petroselinic acid (cis-6-octadecenoic acid),the major component of plant lipids, was embedded in the matrix of cellulose acetate polymer to form the petroselinic acid embedded cellulose acetate membrane (PECAM). Accumulation of the polycyclic aromatic hydrocarbons (PAHs) naphthalene (Nap), phenanthrene (Phe), pyrene (Pyr), and benz(a)pyrene (Bap) by PECAM was compared with their uptake by plants. The accumulation of Nap, Phe, Pyr, and Bap by PECAM reached equilibrium in 24,48,144, and 192 h, respectively. The petroselinic acid-water partition coefficients (log K(pw), 3.37, 4.90, 5.24, and 6.28 for Nap, Phe, Pyr, and Bap, respectively) were positively correlated with the hydrophobicity of the compounds (R(2) = 0.995) and were almost the same as the lipid-normalized root partition coefficients (log K(lip)) for the corresponding compounds. Their relationship can be expressed as log K(pw) = 0.98 log K(lip). The normalized plant uptake coefficients (log K(u)) obtained by in vivo experiments with a range of plant species (2.92, 4.43, 5.06, and 6.13 on average for Nap, Phe, Pyr, and Bap, respectively) were slightly lower than those of the log K(pw) values for the corresponding compounds, presumably due to their acropetal translocation and biodegradation inside plants. This work suggests that PECAMs can well mimic plant partitioning and in vivo uptake of PAHs and may have good potential as a nonliving accumulator to mimic plant uptake of PAHs and perhaps other HOCs. |
| WOS记录号 | WOS:000273267000050 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21169]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Xiuying,Zhu, Yanhong,Wu, Tong,et al. Using a Novel Petroselinic Acid Embedded Cellulose Acetate Membrane to Mimic Plant Partitioning and In Vivo Uptake of Polycyclic Aromatic Hydrocarbons[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2010,44(1):297-301. |
| APA | Li, Xiuying,Zhu, Yanhong,Wu, Tong,Zhang, Shuzhen,&Christie, Peter.(2010).Using a Novel Petroselinic Acid Embedded Cellulose Acetate Membrane to Mimic Plant Partitioning and In Vivo Uptake of Polycyclic Aromatic Hydrocarbons.ENVIRONMENTAL SCIENCE & TECHNOLOGY,44(1),297-301. |
| MLA | Li, Xiuying,et al."Using a Novel Petroselinic Acid Embedded Cellulose Acetate Membrane to Mimic Plant Partitioning and In Vivo Uptake of Polycyclic Aromatic Hydrocarbons".ENVIRONMENTAL SCIENCE & TECHNOLOGY 44.1(2010):297-301. |
入库方式： OAI收割
来源：生态环境研究中心
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