Exopolymeric substances production by Bacillus cereus KMS3-1 enhanced its biosorption efficiency in removing Cd(2+)and Pb2+ in single and binary metal mixtures
文献类型：期刊论文
| 作者 | Mathivanan, Krishnamurthy2; Chandirika, Jayaraman Uthaya4; Srinivasan, Rajendran1; Charles, Partheeban Emmanuel3; Rajaram, Rajendran3; Zhang, Ruiyong2 |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 228页码:10 |
| ISSN号 | 0013-9351 |
| 关键词 | Bacteria Growth EPS production Biosorption efficiency Single and binary metal mixtures Functional groups |
| DOI | 10.1016/j.envres.2023.115917 |
| 通讯作者 | Mathivanan, Krishnamurthy(kritamathi@gmail.com) ; Zhang, Ruiyong(ruiyong.zhang@qdio.ac.cn) |
| 英文摘要 | The present study investigated the growth, exopolymeric substance (EPS) production, and biosorption efficiency of strain Bacillus cereus KMS3-1 in the Cd2+ and Pb2+ ions containing single and binary metal-treated broth (50 mg/L). In addition, the interaction of the KMS3-1 strain with Cd2+ and Pb2+ ions in single and binary metal-treated broths was investigated using SEM-EDS, FTIR, and XRD analyses. The results showed that the bio-sorption efficiency (%) and EPS production of KMS3-1 biomass in both single and binary metal-treated broths had increased with increasing incubation time and were higher for Pb2+ ions than for Cd2+ ions. In the single and binary metal-treated broths, the maximum biosorption efficiency of KMS3-1 for Pb2+ ions were 70.8% and 46.3%, respectively, while for Cd2+ ions, they were 29.3% and 16.8%, respectively, after 72 h. Moreover, the biosorption efficiency of strain KMS3-1 for both metal ions was dependent on its EPS production and peaked at the maximum EPS production. The copious EPS production by KMS3-1 was observed in metal-treated media (50 mg/L), in the following order: Pb2+ ions (1925.7 mu g/mL) > binary metal mixtures (1286.8 mu g/mL) > Cd2+ ions (1185.5 mu g/mL), > control (1099 mu g/mL) after 72 h of incubation. This result indicates that the metal biosorption efficiency of the KMS3-1 strain was enhanced by the increased EPS production in the surrounding metal-treated broth. SEM-EDS and FTIR characterization studies revealed that the KMS3-1 biomass effectively adsorbed Cd2+ and Pb2+ ions from the medium by interacting with their surface functional groups (hydroxyl, carbonyl, carboxyl, amide, and phosphate). Moreover, the biosorbed Cd2+ and Pb2+ ions were transformed into CdS and PbS, respectively, by the KMS3-1 biomass. This study suggests that the Bacillus cereus KMS3-1 strain may be a promising candidate for the treatment of metal contamination. |
| WOS关键词 | HEAVY-METALS ; BACTERIA ; CADMIUM ; LEAD ; RESISTANT ; EXOPOLYSACCHARIDE ; TOXICITY ; DETOXIFICATION ; URANIUM ; CR(VI) |
| 资助项目 | Post-doctoral research plan at the Institute of Oceanology, Chinese Academy of Sciences, China[329010] |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:000990654400001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182987]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Mathivanan, Krishnamurthy; Zhang, Ruiyong |
| 作者单位 | 1.Alagappa Univ, Sch Marine Sci, Dept Fisheries Sci, Karaikkudi 630003, Tamil Nadu, India 2.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Bharathidasan Univ, Dept Marine Sci, Tiruchirappalli 620024, Tamil Nadu, India 4.Manonmaniam Sundaranar Univ, Sri Paramakalyani Ctr Excellence Environm Sci, Environm Nanotechnol Div, Alwarkurichi 627412, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Mathivanan, Krishnamurthy,Chandirika, Jayaraman Uthaya,Srinivasan, Rajendran,et al. Exopolymeric substances production by Bacillus cereus KMS3-1 enhanced its biosorption efficiency in removing Cd(2+)and Pb2+ in single and binary metal mixtures[J]. ENVIRONMENTAL RESEARCH,2023,228:10. |
| APA | Mathivanan, Krishnamurthy,Chandirika, Jayaraman Uthaya,Srinivasan, Rajendran,Charles, Partheeban Emmanuel,Rajaram, Rajendran,&Zhang, Ruiyong.(2023).Exopolymeric substances production by Bacillus cereus KMS3-1 enhanced its biosorption efficiency in removing Cd(2+)and Pb2+ in single and binary metal mixtures.ENVIRONMENTAL RESEARCH,228,10. |
| MLA | Mathivanan, Krishnamurthy,et al."Exopolymeric substances production by Bacillus cereus KMS3-1 enhanced its biosorption efficiency in removing Cd(2+)and Pb2+ in single and binary metal mixtures".ENVIRONMENTAL RESEARCH 228(2023):10. |
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来源：海洋研究所
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