Advanced oxidation processes in the treatment of corn stalks
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2023
Authors
Grbić, Jovana
Mladenović, Dragana

Pavlović, Stefan

Lazović, Saša

Mojović, Ljiljana

Djukić-Vuković, Aleksandra

Article (Published version)

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The depletion of fossil fuel reserves and severe environmental damage, resulting in climate change and global warming lead to a necessary shift to alternative renewable resources. Lignocellulose is a valuable feedstock for biorefineries, but its conversion is hindered by the limitations of conventional pretreatments lacking selectivity. This step should also be cost-effective and sustainable. In this paper, combined advanced oxidation techniques were applied for the treatment of corn stalks as a pretreatment for enzymatic hydrolysis. Their effect on delignification and cellulose digestibility was monitored. The combined non-thermal plasma/Fenton treatment appears to be suitable for breaking the complex lignocellulose structure, with a lignin content decrease of 39%. This treatment enhanced carbohydrate hydrolysis, resulting in 2.25 times increase in hexose yield, compared to the untreated sample. Long-term plasma treatment positively affected the textural properties, total porosity, an...d pore size diameter, of lignocellulose biomass. It enables the creation of materials with a stable system of pores and channels, for the unhindered diffusion of large organic molecules such as enzymes. Additionally, a combination of plasma treatment with Fenton reaction increased selectivity towards lignin degradation in comparison to independently applied Fenton treatment. This could be a significant advantage for a bottleneck in the current valorization of biomass.
Keywords:
Biorefinery / Fenton process / Lignocellulosic biomass / Non-thermal plasmaSource:
Sustainable Chemistry and Pharmacy, 2023, 32, 100962-Publisher:
- Elsevier B.V.
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200287 (Innovation Center of the Faculty of Technology and Metallurgy) (RS-200287)
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Inovacioni centarTY - JOUR AU - Grbić, Jovana AU - Mladenović, Dragana AU - Pavlović, Stefan AU - Lazović, Saša AU - Mojović, Ljiljana AU - Djukić-Vuković, Aleksandra PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5651 AB - The depletion of fossil fuel reserves and severe environmental damage, resulting in climate change and global warming lead to a necessary shift to alternative renewable resources. Lignocellulose is a valuable feedstock for biorefineries, but its conversion is hindered by the limitations of conventional pretreatments lacking selectivity. This step should also be cost-effective and sustainable. In this paper, combined advanced oxidation techniques were applied for the treatment of corn stalks as a pretreatment for enzymatic hydrolysis. Their effect on delignification and cellulose digestibility was monitored. The combined non-thermal plasma/Fenton treatment appears to be suitable for breaking the complex lignocellulose structure, with a lignin content decrease of 39%. This treatment enhanced carbohydrate hydrolysis, resulting in 2.25 times increase in hexose yield, compared to the untreated sample. Long-term plasma treatment positively affected the textural properties, total porosity, and pore size diameter, of lignocellulose biomass. It enables the creation of materials with a stable system of pores and channels, for the unhindered diffusion of large organic molecules such as enzymes. Additionally, a combination of plasma treatment with Fenton reaction increased selectivity towards lignin degradation in comparison to independently applied Fenton treatment. This could be a significant advantage for a bottleneck in the current valorization of biomass. PB - Elsevier B.V. T2 - Sustainable Chemistry and Pharmacy T1 - Advanced oxidation processes in the treatment of corn stalks SP - 100962 VL - 32 DO - 10.1016/j.scp.2022.100962 ER -
@article{ author = "Grbić, Jovana and Mladenović, Dragana and Pavlović, Stefan and Lazović, Saša and Mojović, Ljiljana and Djukić-Vuković, Aleksandra", year = "2023", abstract = "The depletion of fossil fuel reserves and severe environmental damage, resulting in climate change and global warming lead to a necessary shift to alternative renewable resources. Lignocellulose is a valuable feedstock for biorefineries, but its conversion is hindered by the limitations of conventional pretreatments lacking selectivity. This step should also be cost-effective and sustainable. In this paper, combined advanced oxidation techniques were applied for the treatment of corn stalks as a pretreatment for enzymatic hydrolysis. Their effect on delignification and cellulose digestibility was monitored. The combined non-thermal plasma/Fenton treatment appears to be suitable for breaking the complex lignocellulose structure, with a lignin content decrease of 39%. This treatment enhanced carbohydrate hydrolysis, resulting in 2.25 times increase in hexose yield, compared to the untreated sample. Long-term plasma treatment positively affected the textural properties, total porosity, and pore size diameter, of lignocellulose biomass. It enables the creation of materials with a stable system of pores and channels, for the unhindered diffusion of large organic molecules such as enzymes. Additionally, a combination of plasma treatment with Fenton reaction increased selectivity towards lignin degradation in comparison to independently applied Fenton treatment. This could be a significant advantage for a bottleneck in the current valorization of biomass.", publisher = "Elsevier B.V.", journal = "Sustainable Chemistry and Pharmacy", title = "Advanced oxidation processes in the treatment of corn stalks", pages = "100962", volume = "32", doi = "10.1016/j.scp.2022.100962" }
Grbić, J., Mladenović, D., Pavlović, S., Lazović, S., Mojović, L.,& Djukić-Vuković, A.. (2023). Advanced oxidation processes in the treatment of corn stalks. in Sustainable Chemistry and Pharmacy Elsevier B.V.., 32, 100962. https://doi.org/10.1016/j.scp.2022.100962
Grbić J, Mladenović D, Pavlović S, Lazović S, Mojović L, Djukić-Vuković A. Advanced oxidation processes in the treatment of corn stalks. in Sustainable Chemistry and Pharmacy. 2023;32:100962. doi:10.1016/j.scp.2022.100962 .
Grbić, Jovana, Mladenović, Dragana, Pavlović, Stefan, Lazović, Saša, Mojović, Ljiljana, Djukić-Vuković, Aleksandra, "Advanced oxidation processes in the treatment of corn stalks" in Sustainable Chemistry and Pharmacy, 32 (2023):100962, https://doi.org/10.1016/j.scp.2022.100962 . .