锌对短毛毡生长和漆酶活性的影响及锌吸附平衡研究

IF 1.3 4区环境科学与生态学 Q3 ECOLOGY

Chemistry and Ecology Pub Date : 2023-10-23 DOI:10.1080/02757540.2023.2269939

Azadeh Farhadi, Naeimeh Enayatizamir, Neda Moradi, Mehdi Taghavi

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引用次数: 0

摘要

摘要研究了几种离子对短毛毡真菌产漆酶的影响，研究了不同浓度锌对短毛毡真菌生长和产漆酶的影响。研究了毛霉对锌的去除动力学和吸附等温线。结果表明，锌浓度的增加对真菌的生长有抑制作用。培养基中Zn浓度为10和20 mg L−1时，真菌的生长有所增加。在100和200 mg L−1 Zn处理下，漆酶产量降低。实验得到了不同接触时间真菌对锌的吸附动力学参数(含锌200 mg L−1)。结果表明，随着接触时间的增加，真菌对Zn的去除有增加的趋势，颗粒内扩散和Elovich模型很好地描述了这一趋势。在7200 min时，Zn的最大去除率为67.1%，最大吸附量为44.7 mg g−1。锌的吸附符合Freundlich和Langmuir吸附模型。本研究表明了低浓度锌对提高漆酶产量的影响，以及该真菌去除水溶液中锌的可行性。关键词:吸附等温;赤霉素;脱除酶动力学;锌致谢作者感谢阿瓦士沙希德查姆兰大学研究委员会对本研究的支持。并。AS1401.248)。披露声明作者未报告潜在的利益冲突。作者简介azadeh Farhadi是土壤生物学和生物技术专业的博士生。Naeimeh Enayatizamir是一名土壤生物学和生物技术副教授，她研究了促进植物生长的细菌和顽固性化合物的生物修复和生物降解。Neda MoradiNeda Moradi，土壤化学和污染助理教授，主要研究土壤中的金属污染和土壤修正。Mehdi Taghavi，化学助理教授，在材料特性、聚合物和纳米材料方面著述。

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Zinc’s impact on the growth and laccase activity of Trametes pubescens and an equilibrium study of zinc adsorption

ABSTRACTDue to the influence of some ions on laccase production by Trametes pubescens, the impact of different concentrations of zinc (Zn) on fungus growth and laccase production was investigated. The removal kinetics and adsorption isotherm of Zn by T. pubescens from an aqueous solution were evaluated. The results demonstrated the growth inhibition of fungus by an increase in Zn concentration. Zn concentrations of 10 and 20 mg L−1 in the medium caused an increase in the growth of fungus. Laccase production reduced at 100 and 200 mg L−1 of Zn. The kinetic parameters of Zn adsorption onto the biomass of fungus from aqueous solutions (containing 200 mg L−1 Zn) obtained by experiments at different contact times. The results indicated a trend of increasing Zn removal by fungus with the contact time, and it was well-described by the Intra-particle diffusion and Elovich models. The maximum removal of Zn was 67.1% at 7200 min, with a maximum sorption capacity of 44.7 mg g−1. The adsorption of Zn was well-fitted to the Freundlich and Langmuir sorption models. This study indicated an impact of a low concentration of Zn to increase laccase production and the feasibility of this fungus to remove Zn from aqueous solutions.KEYWORDS: Adsorption isothermTrametes pubescenskinetic of removalLaccase activityZinc AcknowledgementsThe authors would like to thank the Research council of Shahid Chamran University of Ahvaz for the support of this study (GN. SCU. AS1401.248).Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationNotes on contributorsAzadeh FarhadiAzadeh Farhadi is a Ph.D. student of soil biology and biotechnology.Naeimeh EnayatizamirNaeimeh Enayatizamir, an associate professor of soil biology and biotechnology, searches on both plant growth promoting bacteria and bioremediation and Biodegradation of recalcitrant compounds.Neda MoradiNeda Moradi, an assistant professor of soil chemistry and pollution, writes on metals pollution in soil and Soil amendments.Mehdi TaghaviMehdi Taghavi, an assistant professor of chemistry, writes on material characterization, plymer and nanomaterials.

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来源期刊

Chemistry and Ecology 环境科学-环境科学

CiteScore

4.20

自引率

16.00%

发文量

审稿时长

3.7 months

期刊介绍： Chemistry and Ecology publishes original articles, short notes and occasional reviews on the relationship between chemistry and ecological processes. This journal reflects how chemical form and state, as well as other basic properties, are critical in their influence on biological systems and that understanding of the routes and dynamics of the transfer of materials through atmospheric, terrestrial and aquatic systems, and the associated effects, calls for an integrated treatment. Chemistry and Ecology will help promote the ecological assessment of a changing chemical environment and in the development of a better understanding of ecological functions.