丁香醛和丁香醇介导漆酶高效降解磺胺甲恶唑  

Efficient Degradation of Sulfamethoxazole by Laccase Mediated by Syringaldehyde and Syringyl Alcohol

作　　者：马骏 黄大伟 朱艺 MA Jun;HUANG Dawei;ZHU Yi(School of Resources and Environment,Yangtze University,Wuhan 430100,China;South China Institute of Environmental Sciences,Ministry of Ecology and Environment(Research Institute of Eco-environmental Emergency,Ministry of Ecology and Environment),Guangzhou 510530,China;Hubei Key Laboratory of Petroleum Geochemistry and Environment,Wuhan 430100,China)

机构地区：[1]长江大学资源与环境学院,湖北武汉430100 [2]生态环境部华南环境科学研究所(生态环境部生态环境应急研究所),广东广州510530 [3]油气地球化学与环境湖北省重点实验室,湖北武汉430100

出　　处：《水处理技术》2024年第3期75-79,共5页Technology of Water Treatment

基　　金：国家重点研发项目(2022YFC3705004)。

摘　　要：为探讨不同漆酶介体系统(LMS)对磺胺甲恶唑(SMX)的降解效果。采用了多种漆酶介体体系,重点研究了天然介体如丁香醛和丁香醇与漆酶的结合降解效果,并与其他常见介体如2,2’-联氨-双(3-乙基苯并噻唑啉-6-磺酸)二胺盐(ABTS)进行对比。同时,分析了漆酶的初始浓度、介体的起始浓度、pH以及温度等因素对降解效果的影响。结果表明:当使用丁香醛或丁香醇为介体时,降解效果明显优于其他介体。其中,当漆酶初始浓度为0.5 mg/mL、丁香醇起始浓度为0.5 mmol/L、温度为30°C、pH=5时,丁香醇在15 min内能降解92.4%的SMX,而240 min后提高至96.4%。天然介体丁香醛、丁香醇与漆酶的结合对SMX的降解表现出高效性和环境友好性,为水体中SMX污染的处理提供了一个有效方法。To investigate the degradation effects of sulfamethoxazole(SMX)by different laccase mediator systems(LMS).Multiple laccase mediator systems were utilized,with a focus on the degradation effects of natural mediators such as syringaldehyde and syringyl alcohol in combination with laccase,compared with other common mediators like ABTS.Concurrently,the influences of parameters like initial laccase concentration,beginning mediator concentration,pH,and temperature on the degradation performance were assessed.The results show that employing syringaldehyde and syringyl alcohol as mediators resulted in a markedly better degradation efficiency than other mediators.In particular,with laccase at an initial concentration of 0.5 mg/mL,syringyl alcohol starting at 0.5 mmol/L,a 30ºC temperature,and pH of 5,eugenol achieved a 92.4%degradation of SMX within 15 min,rising to 96.4%by 240 min.The pairing of natural mediators,syringaldehyde and syringyl alcohol,with laccase exhibited high effectiveness and eco-friendliness in the degradation of SMX,presenting a viable solution for addressing SMX contamination in aquatic systems.

关 键 词：磺胺甲恶唑 漆酶 丁香醛 丁香醇 抗生素降解 

分 类 号：S859.796[农业科学—临床兽医学] X52[农业科学—兽医学]