化学工程2011，Vol.39Issue(9)：1-5,5.
生物表面活性剂对疏水性有机物的增溶特性
Solubilization of hydrophobic organic compounds by biosurfactant
摘要
Abstract
The solubilization effect of biosurfactant plays a great role in improving bioavailability of hydrophobic organic compounds ( HOCs). The effects of single biosurfactant ( rhamnolip) and binary mixed-surfactants ( rhamnolip-nonionics) on the solubilization of insoluble organic compounds were demonstrated in the experiment. The solubility of the mixed surfactants upon the addition of inorganic salts was studied. The results show that there is a linear positive correlation between the mass concentration of rhamnolipid and the apparent water solubility of long-chain alkanes and polycyclic aromatic hydrocarbons ( PAHs) as it is above the critical micelle mass concentration (CMC) , where the sequence of molar solubilization ratio (MSR) values is as follows; n-hexadecane > naphthalene > anthracene > pyrene. In addition, the mixed surfactant displays a synergistic effect on the solubilization of pyrene, and has better solubility than pure rhamnolipid. The synergistic power of the mixtures for HOCs is rhamnolipid-Tween80 > rhamnolipid-lauryl-alcohol-polyoxyethylene, and their solubility is proportional to the mass concentration of inorganic salts.关键词
生物表面活性剂/鼠李糖脂/难溶性有机物/增溶Key words
biosurfactant/ rhamnolipid/ insoluble organic matter/ solubilization分类
资源环境引用本文复制引用
李琦,黄廷林,宋进喜..生物表面活性剂对疏水性有机物的增溶特性[J].化学工程,2011,39(9):1-5,5.基金项目
国家自然科学基金资助项目(50378077) （50378077）
陕西省教育厅专项基金(07JK388) （07JK388）
