生物酶对五氯联苯降解的初步研究

多氯联苯（PCBs）是具有代表性的持久性有机污染物（POPs），其氯代数目越多，降解越难。本文以分离筛选的6株PCBs降解细菌为材料，制备了含有NADH辅酶再生系统关键酶甲酸脱氢酶（FDH）的PCBs降解复合酶，研究了其对PCBs的降解效果。结果表明，Pseudomonas sp. MGB11胞内酶/FDH复合酶对五氯联苯PCB114的降解率在10 h内可达69.4%，对于高毒性、难降解的高氯PCBs的污染修复具有应用价值。

Pilot study on bioenzyme degradation to pentachlorodiphenyl

Polychlorinated biphenyls (PCBs) is a representative of persistent organic pollutants (POPs). More its chlorinated number leads to more difficult its degradation . We prepared PCBs compound degrading enzyme of key enzyme formate dehydrogenase (FDH) of NADH coenzyme regeneration system with isolated 6 PCBs degradation bacteria strains as materials. We address its degrading effect to PCBs. Results indicate that degradation rate of Pseudomonas sp. MGB11/FDH compound enzyme to pentachlorodiphenyl PCB114 is up to 69.4% within 10 h. It therefore has application value in the repair for high chlorine PCBs pollutants with high toxicity and low degradability.