Influence of surfactant–Tween80 on degradation of benzo(a)pyrene and its accumulated metabolites by Bacillus-07
Two degradation metabolites of benzo(a)pyrene(BaP), cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol, were identified using high performance liquid chromatography (HPLC) with standards. Both BaP and the two metabolites were well-known toxic compounds. The effect of a nonionic surfactant-Tween80 (TW80) on the degradation of the above three compounds by Bacillus-07, in aqueous phase, was studied. The result showed that (1) Solubility of the three compounds was enhanced by more than 20 times and their bioavailability was markedly improved；(2) Compared with controls, degradation rate of BaP was enhanced by 25.01%, meanwhile accumulation rates of cis-BP4,5-dihydrodiol and cis-BP7,8-dihydrodiol were lowered 2.11% and 2.57% on the 8d, respectively, after the adding of 1000 ppm TW80; (3) TW80 could be utilized by microorganisms as energy and it exhibited no inhibitory effect on the growth of Bacillus-07.
Zang shuyan Li Panpan
Shenyang Institute of Chemical Technology , Shenyang 110142 , China State Key Laboratory of Environm Shenyang Institute of Chemical Technology , Shenyang 110142 , China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）