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Hadinezhad, Farbod, Abbaszadeh-Mayvan, Ahmad, Taghizadeh-Alisaraei, Ahmad, Aryaie Monfared, Mohammad hadi, Moayedi, Ali, Tatari, Ali asghar. (1404). Effect of dilute acid pretreatment on the chemical properties of Paulownia wood (Paulownia fortunei) for bioethanol production. , 1(2), 89-96. doi: 10.22069/bere.2025.23571.1025
Farbod Hadinezhad; Ahmad Abbaszadeh-Mayvan; Ahmad Taghizadeh-Alisaraei; Mohammad hadi Aryaie Monfared; Ali Moayedi; Ali asghar Tatari. "Effect of dilute acid pretreatment on the chemical properties of Paulownia wood (Paulownia fortunei) for bioethanol production". , 1, 2, 1404, 89-96. doi: 10.22069/bere.2025.23571.1025
Hadinezhad, Farbod, Abbaszadeh-Mayvan, Ahmad, Taghizadeh-Alisaraei, Ahmad, Aryaie Monfared, Mohammad hadi, Moayedi, Ali, Tatari, Ali asghar. (1404). 'Effect of dilute acid pretreatment on the chemical properties of Paulownia wood (Paulownia fortunei) for bioethanol production', , 1(2), pp. 89-96. doi: 10.22069/bere.2025.23571.1025
Hadinezhad, Farbod, Abbaszadeh-Mayvan, Ahmad, Taghizadeh-Alisaraei, Ahmad, Aryaie Monfared, Mohammad hadi, Moayedi, Ali, Tatari, Ali asghar. Effect of dilute acid pretreatment on the chemical properties of Paulownia wood (Paulownia fortunei) for bioethanol production. , 1404; 1(2): 89-96. doi: 10.22069/bere.2025.23571.1025

Effect of dilute acid pretreatment on the chemical properties of Paulownia wood (Paulownia fortunei) for bioethanol production

Biosystems Engineering and Renewable Energies
دوره 1، شماره 2، آذر 2025، صفحه 89-96
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22069/bere.2025.23571.1025
نویسندگان
Farbod Hadinezhad1؛ Ahmad Abbaszadeh-Mayvan* 2؛ Ahmad Taghizadeh-Alisaraei3؛ Mohammad hadi Aryaie Monfared4؛ Ali Moayedi5؛ Ali asghar Tatari4
1Department of Biosystems Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
2Biosystems Engineering Department, Gorgan University of Agricultural and Natural Resources
3Department of Biosystems Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
4Department of Paper Science and Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
5Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan Province, Iran
چکیده
Dilute acid pretreatment is a widely used method for lignocellulosic biomass breakdown and enhancing the accessibility of cellulose. Despite the growing interest in bioethanol production, the effects of dilute acid pretreatment on the chemical properties of Paulownia wood remain insufficiently understood, limiting the optimization of biomass conversion processes. This study explores the effect of dilute acid pretreatment on the chemical composition of Paulownia wood, aiming to optimize cellulose, holo-cellulose, and lignin content using response surface methodology. The investigated factors included acid concentration (0.25-1.75% w/w), pretreatment temperature (30-210 °C), and pretreatment time (7.5-142.5 min). The ANOVA results demonstrated that temperature was the most significant factor affecting cellulose, holocellulose, and lignin content (p<0.0001), followed by acid concentration, while pretreatment time showed no statistically significant influence. The optimal pretreatment condition had an acid concentration of 1.5%, temperature of 180 °C, and a time duration of 30 min, which showed the lowest lignin content and the highest cellulose and holocellulose content. Fermentation of this sample yielded a bioethanol concentration of 2.8 g/l. This study provides a foundation for refining pretreatment strategies to maximize biomass valorization, highlighting the importance of temperature and acid concentration as key parameters in optimizing dilute acid pretreatment of Paulownia wood.
کلیدواژه‌ها
Dilute acid pretreatment؛ Paulownia wood؛ Holocellulose؛ Lignin؛ Bioethanol؛ Response surface methodology
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