Biodegradation Efficacy of Aspergillus niger and Trichoderma harzianum on Low-Density Polyethylene DOI Open Access
Mohamed Ahmed, Shazia Iram,

Noshabah Tabassum

и другие.

Polymers, Год журнала: 2025, Номер 17(10), С. 1303 - 1303

Опубликована: Май 10, 2025

This study investigates the biodegradation potential of two fungal strains, Aspergillus niger and Trichoderma harzianum, on polyethylene plastic bags, addressing environmental challenges posed by resistance material to degradation. The fungi were cultivated, their spore suspensions tested for degradation in both soil liquid salt media. Degradation was assessed using weight loss measurements, thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM). After one month medium, A. induced a 45.62 ± 0.21% polyethylene, while T. harzianum achieved 36.0 reduction. In soil, losses 9.09 0.08% 10.00 0.18% observed after months, respectively. TGA confirmed that fungus-treated samples less thermally stable than untreated controls, indicating successful biodegradation. FTIR revealed structural changes degraded SEM images demonstrated significant surface alterations, including pitting, roughening, cracks, holes, colonization. These findings confirm enzymatic action degrading into monomeric forms. highlights as an environmentally friendly strategy mitigate pollution. Future studies should characterize specific enzymes involved explore genetic engineering enhance rates.

Язык: Английский

Biodegradation Efficacy of Aspergillus niger and Trichoderma harzianum on Low-Density Polyethylene DOI Open Access
Mohamed Ahmed, Shazia Iram,

Noshabah Tabassum

и другие.

Polymers, Год журнала: 2025, Номер 17(10), С. 1303 - 1303

Опубликована: Май 10, 2025

This study investigates the biodegradation potential of two fungal strains, Aspergillus niger and Trichoderma harzianum, on polyethylene plastic bags, addressing environmental challenges posed by resistance material to degradation. The fungi were cultivated, their spore suspensions tested for degradation in both soil liquid salt media. Degradation was assessed using weight loss measurements, thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM). After one month medium, A. induced a 45.62 ± 0.21% polyethylene, while T. harzianum achieved 36.0 reduction. In soil, losses 9.09 0.08% 10.00 0.18% observed after months, respectively. TGA confirmed that fungus-treated samples less thermally stable than untreated controls, indicating successful biodegradation. FTIR revealed structural changes degraded SEM images demonstrated significant surface alterations, including pitting, roughening, cracks, holes, colonization. These findings confirm enzymatic action degrading into monomeric forms. highlights as an environmentally friendly strategy mitigate pollution. Future studies should characterize specific enzymes involved explore genetic engineering enhance rates.

Язык: Английский

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