Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis
Low-density polyethylene (LDPE) is a widely used polymer due to its chemical resistance, highflexibility, and mechanical properties. However, its low degradation rate, coupled with its low lifespanand widespread accumulation, poses significant environmental and public health concerns. This studypres...
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Pontificia Universidad Javeriana
2024-07-01
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| Series: | Universitas Scientiarum |
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| Online Access: | https://revistas.javeriana.edu.co/index.php/scientarium/article/view/37381 |
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| author | Daniela Garcia Moreno Diana Milena Morales Fonseca Gloria Astrid Nausa Galeano |
| author_facet | Daniela Garcia Moreno Diana Milena Morales Fonseca Gloria Astrid Nausa Galeano |
| author_sort | Daniela Garcia Moreno |
| collection | DOAJ |
| description | Low-density polyethylene (LDPE) is a widely used polymer due to its chemical resistance, highflexibility, and mechanical properties. However, its low degradation rate, coupled with its low lifespanand widespread accumulation, poses significant environmental and public health concerns. This studypresents a biodegradation model for LDPE using a suspension bioreactor, which could serve as abiological treatment alternative before polymer disposal. In our model, an initial culture ofAspergillusbrasiliensismetabolized the carbon within the polymer structure and used it as an energy source,leading to LPDE biodegradation and mineralization. The procedure took place in a laboratory-scalebioreactor prototype under aerobic conditions and submerged liquid fermentation. After one month ofculture, a biodegradation percentage of1:89 ̇0:56% was reached. The treated materials were analyzedby scanning electron microscopy (SEM) and fourier transform infrared spectroscopy (FTIR). We foundevidence of biodegradation, colonization of the material, and biofilm formation. This research providespreliminary data on the biodegradation of LDPE under submerged liquid fermentation, marking aninitial phase in the development of a prototype for polymer biodegradation. |
| format | Article |
| id | doaj-art-c3b3089afc95456b91f39fbbc098604c |
| institution | DOAJ |
| issn | 0122-7483 2027-1352 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Pontificia Universidad Javeriana |
| record_format | Article |
| series | Universitas Scientiarum |
| spelling | doaj-art-c3b3089afc95456b91f39fbbc098604c2025-08-20T03:23:11ZengPontificia Universidad JaverianaUniversitas Scientiarum0122-74832027-13522024-07-0129212714410.11144/Javeriana.SC292.doabDevelopment of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensisDaniela Garcia Moreno 0https://orcid.org/0000-0002-3446-1046Diana Milena Morales Fonseca1https://orcid.org/0000-0002-5355-2891Gloria Astrid Nausa Galeano2https://orcid.org/0000-0002-5905-6151Universidad de América, ColombiaUniversidad de América, ColombiaUniversidad de América, ColombiaLow-density polyethylene (LDPE) is a widely used polymer due to its chemical resistance, highflexibility, and mechanical properties. However, its low degradation rate, coupled with its low lifespanand widespread accumulation, poses significant environmental and public health concerns. This studypresents a biodegradation model for LDPE using a suspension bioreactor, which could serve as abiological treatment alternative before polymer disposal. In our model, an initial culture ofAspergillusbrasiliensismetabolized the carbon within the polymer structure and used it as an energy source,leading to LPDE biodegradation and mineralization. The procedure took place in a laboratory-scalebioreactor prototype under aerobic conditions and submerged liquid fermentation. After one month ofculture, a biodegradation percentage of1:89 ̇0:56% was reached. The treated materials were analyzedby scanning electron microscopy (SEM) and fourier transform infrared spectroscopy (FTIR). We foundevidence of biodegradation, colonization of the material, and biofilm formation. This research providespreliminary data on the biodegradation of LDPE under submerged liquid fermentation, marking aninitial phase in the development of a prototype for polymer biodegradation.https://revistas.javeriana.edu.co/index.php/scientarium/article/view/37381aspergillus brasiliensis; biodegradation; low-density polyethylene (ldpe); scanningelectron microscopy (sem); submerged liquid fermentation. |
| spellingShingle | Daniela Garcia Moreno Diana Milena Morales Fonseca Gloria Astrid Nausa Galeano Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis Universitas Scientiarum aspergillus brasiliensis; biodegradation; low-density polyethylene (ldpe); scanningelectron microscopy (sem); submerged liquid fermentation. |
| title | Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis |
| title_full | Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis |
| title_fullStr | Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis |
| title_full_unstemmed | Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis |
| title_short | Development of a Bioreactor-Based Model for low-density polyethylene (LDPE) Biodegradation by Aspergillus brasiliensis |
| title_sort | development of a bioreactor based model for low density polyethylene ldpe biodegradation by aspergillus brasiliensis |
| topic | aspergillus brasiliensis; biodegradation; low-density polyethylene (ldpe); scanningelectron microscopy (sem); submerged liquid fermentation. |
| url | https://revistas.javeriana.edu.co/index.php/scientarium/article/view/37381 |
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