Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology
Molybdenum (Mo) is a critical industrial metal valued for its corrosion resistance and strength-enhancing properties. However, increasing demand necessitates more efficient and sustainable recovery methods. Bio-recovery of Mo by biosorption is a promising resolution, especially by the use of surface...
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MDPI AG
2025-04-01
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| Online Access: | https://www.mdpi.com/2076-2607/13/5/1034 |
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| author | Thiti Jittayasotorn Kentaro Kojima Audrey Stephanie Kaho Nakamura Hernando P. Bacosa Kengo Kubota Masanobu Kamitakahara Chihiro Inoue Mei-Fang Chien |
| author_facet | Thiti Jittayasotorn Kentaro Kojima Audrey Stephanie Kaho Nakamura Hernando P. Bacosa Kengo Kubota Masanobu Kamitakahara Chihiro Inoue Mei-Fang Chien |
| author_sort | Thiti Jittayasotorn |
| collection | DOAJ |
| description | Molybdenum (Mo) is a critical industrial metal valued for its corrosion resistance and strength-enhancing properties. However, increasing demand necessitates more efficient and sustainable recovery methods. Bio-recovery of Mo by biosorption is a promising resolution, especially by the use of surface-engineered microbes that express metal binding proteins on its cell surface. This study investigates the potential of <i>Saccharomyces cerevisiae</i> strain ScBp6, which displays a molybdate-binding protein (ModE) on its cell surface, immobilized on porous materials. Our findings reveal that polyurethane sponges (PS) significantly outperform ceramic materials in yeast immobilization, entrapping 1.76 × 10<sup>7</sup> cells per sponge compared to 1.70 × 10<sup>6</sup> cells per ceramic cube. Furthermore, the yeast–PS complex demonstrated superior Mo adsorption, reaching 2.16 pg Mo per yeast cell under 10 ppm Mo conditions, comparable to free yeast cells (1.96 pg Mo per yeast cell). These results establish PS as an effective and scalable platform for Mo recovery, offering high biosorption efficiency, reusability, and potential for industrial wastewater treatment applications. |
| format | Article |
| id | doaj-art-26ed746f6f1540a6b87fd6b2e034b321 |
| institution | OA Journals |
| issn | 2076-2607 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Microorganisms |
| spelling | doaj-art-26ed746f6f1540a6b87fd6b2e034b3212025-08-20T01:56:35ZengMDPI AGMicroorganisms2076-26072025-04-01135103410.3390/microorganisms13051034Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption TechnologyThiti Jittayasotorn0Kentaro Kojima1Audrey Stephanie2Kaho Nakamura3Hernando P. Bacosa4Kengo Kubota5Masanobu Kamitakahara6Chihiro Inoue7Mei-Fang Chien8Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Science, School of Interdisciplinary Studies, Mindanao State University-Iligan Institute of Technology, Andres Bonifacio Avenue, Iligan 9200, PhilippinesDepartment of Frontier Sciences for Advanced Environment, Graduate of Environmental Studies, and Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanDepartment of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, JapanMolybdenum (Mo) is a critical industrial metal valued for its corrosion resistance and strength-enhancing properties. However, increasing demand necessitates more efficient and sustainable recovery methods. Bio-recovery of Mo by biosorption is a promising resolution, especially by the use of surface-engineered microbes that express metal binding proteins on its cell surface. This study investigates the potential of <i>Saccharomyces cerevisiae</i> strain ScBp6, which displays a molybdate-binding protein (ModE) on its cell surface, immobilized on porous materials. Our findings reveal that polyurethane sponges (PS) significantly outperform ceramic materials in yeast immobilization, entrapping 1.76 × 10<sup>7</sup> cells per sponge compared to 1.70 × 10<sup>6</sup> cells per ceramic cube. Furthermore, the yeast–PS complex demonstrated superior Mo adsorption, reaching 2.16 pg Mo per yeast cell under 10 ppm Mo conditions, comparable to free yeast cells (1.96 pg Mo per yeast cell). These results establish PS as an effective and scalable platform for Mo recovery, offering high biosorption efficiency, reusability, and potential for industrial wastewater treatment applications.https://www.mdpi.com/2076-2607/13/5/1034bio-recoverymolybdaterare metal recoveryimmobilizationcell-surface display<i>Saccharomyces cerevisiae</i> |
| spellingShingle | Thiti Jittayasotorn Kentaro Kojima Audrey Stephanie Kaho Nakamura Hernando P. Bacosa Kengo Kubota Masanobu Kamitakahara Chihiro Inoue Mei-Fang Chien Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology Microorganisms bio-recovery molybdate rare metal recovery immobilization cell-surface display <i>Saccharomyces cerevisiae</i> |
| title | Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology |
| title_full | Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology |
| title_fullStr | Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology |
| title_full_unstemmed | Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology |
| title_short | Enhanced Molybdenum Recovery Achieved by a Complex of Porous Material-Immobilized Surface-Engineered Yeast in Development of a Sustainable Biosorption Technology |
| title_sort | enhanced molybdenum recovery achieved by a complex of porous material immobilized surface engineered yeast in development of a sustainable biosorption technology |
| topic | bio-recovery molybdate rare metal recovery immobilization cell-surface display <i>Saccharomyces cerevisiae</i> |
| url | https://www.mdpi.com/2076-2607/13/5/1034 |
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