Rhodopseudomonas XL 1 gained from textile wastewater can effectively decolorize anthraquinone dye. Under anaerobic condition, 93 percent of the anthraquinone dye is decolorized , which is higher than that under aerobi...Rhodopseudomonas XL 1 gained from textile wastewater can effectively decolorize anthraquinone dye. Under anaerobic condition, 93 percent of the anthraquinone dye is decolorized , which is higher than that under aerobic condition. The optimum pH is 6～9 and the optimum temperature is 20～40℃ for the anthraquinone dye decolorization by XL 1 . XL 1 can not decolorize the anthraquinone dye when it is the sole carbon source. Microbial cometabolism and decolorization of the dye take place in the presence of some other carbon source(0.2～0.4g/100ml)called cometabolic substrate. The cometabolic substrate can be peptone, glucose, sodium acetate, beef extract, amylum, etc. The change of molecular structure of the dye before and after decolorized by XL 1 is studied by UV Vis absorption spectrum. The results indicate that its molecular structure is changed evidently.展开更多
为探究模拟茶叶渣中关键成分制成的复合激活剂,提高两种不同混合菌群DDMY1、DDMY2对活性艳蓝19(reactive brilliant blue 19,RB19)脱色降解的机理,通过液相色谱质谱联用仪、高通量测序、非标及定量蛋白质组学进行分析。试验结果表明,经...为探究模拟茶叶渣中关键成分制成的复合激活剂,提高两种不同混合菌群DDMY1、DDMY2对活性艳蓝19(reactive brilliant blue 19,RB19)脱色降解的机理,通过液相色谱质谱联用仪、高通量测序、非标及定量蛋白质组学进行分析。试验结果表明,经过72 h的培养,复合激活剂使菌群DDMY1的脱色率提高了7.24%,而菌群DDMY2的脱色率仅提高了1.77%,其对菌群DDMY1的促进作用明显高于对菌群DDMY2的作用。同时,激活剂能够富集肠杆菌属,这可能是增强混合菌群对RB19脱色降解的原因。在激活剂诱导下两种不同混合菌群DDMY1、DDMY2差异蛋白参与的KEGG(Kyoto Encyclopedia of Genes and Genomes)通路主要为代谢途径、次生代谢产物的生物合成、抗生素的生物合成、碳代谢。除上述的通路外,苯甲酸的降解途径也得到了证实。推测RB19被先降解为苯甲酸酯,随后进行糖酵解、柠檬酸循环等。研究结果对于激活剂强化染料生物降解机理研究具有一定指导意义。展开更多
文摘Rhodopseudomonas XL 1 gained from textile wastewater can effectively decolorize anthraquinone dye. Under anaerobic condition, 93 percent of the anthraquinone dye is decolorized , which is higher than that under aerobic condition. The optimum pH is 6～9 and the optimum temperature is 20～40℃ for the anthraquinone dye decolorization by XL 1 . XL 1 can not decolorize the anthraquinone dye when it is the sole carbon source. Microbial cometabolism and decolorization of the dye take place in the presence of some other carbon source(0.2～0.4g/100ml)called cometabolic substrate. The cometabolic substrate can be peptone, glucose, sodium acetate, beef extract, amylum, etc. The change of molecular structure of the dye before and after decolorized by XL 1 is studied by UV Vis absorption spectrum. The results indicate that its molecular structure is changed evidently.
文摘为探究模拟茶叶渣中关键成分制成的复合激活剂,提高两种不同混合菌群DDMY1、DDMY2对活性艳蓝19(reactive brilliant blue 19,RB19)脱色降解的机理,通过液相色谱质谱联用仪、高通量测序、非标及定量蛋白质组学进行分析。试验结果表明,经过72 h的培养,复合激活剂使菌群DDMY1的脱色率提高了7.24%,而菌群DDMY2的脱色率仅提高了1.77%,其对菌群DDMY1的促进作用明显高于对菌群DDMY2的作用。同时,激活剂能够富集肠杆菌属,这可能是增强混合菌群对RB19脱色降解的原因。在激活剂诱导下两种不同混合菌群DDMY1、DDMY2差异蛋白参与的KEGG(Kyoto Encyclopedia of Genes and Genomes)通路主要为代谢途径、次生代谢产物的生物合成、抗生素的生物合成、碳代谢。除上述的通路外,苯甲酸的降解途径也得到了证实。推测RB19被先降解为苯甲酸酯,随后进行糖酵解、柠檬酸循环等。研究结果对于激活剂强化染料生物降解机理研究具有一定指导意义。
