TY - GEN
T1 - Kinetic modelling of enzymatic hydrolysis of oil palm empty fruit bunch pretreated by peracetic acid followed by alkaline peroxide solution assisted by ultrasound
AU - Putri, Dwini Normayulisa
AU - Perdani, Meka Saima
AU - Sahlan, Muhamad
AU - Hermansyah, Heri
N1 - Publisher Copyright:
© 2024 Author(s).
PY - 2024/2/6
Y1 - 2024/2/6
N2 - Pretreated oil palm empty fruit bunch (OPEFB) through sequential peracetic acid followed by alkaline peroxide solution assisted by ultrasound has been enzymatically hydrolyzed in this study. Three different cellulase enzyme concentration (1.25, 2.5, and 5 g/L) were employed to investigate their effect towards the concentration and yield of reducing sugar produced from the pretreated OPEFB. Results showed that the concentration and yield of reducing sugar were increased as the increasing enzyme concentration. The highest concentration and yield of reducing sugar has been obtained from the highest concentration of enzyme at 5 g/L. Besides, to fit and reproduce the experimental data, a fully empirical model and fractal model were employed. Fitting curve and statistical parameter showed the goodness-of-fit of both model with the experimental data at all concentration of enzyme. The empirical model showed a significant increase in the kinetic constant as the concentration of enzyme increases from 1.25 to 2.5 g/L and then slightly decrease at the highest concentration of enzyme at 5 g/L. Meanwhile, the fractal model showed a linear increase in the kinetic constant along with the increase of enzyme concentration. From this study, it can be inferred that the fractal model showed better kinetic constant values rather than the empirical model, since a higher enzyme concentration results in a higher kinetic constant which indicating a higher reaction rate.
AB - Pretreated oil palm empty fruit bunch (OPEFB) through sequential peracetic acid followed by alkaline peroxide solution assisted by ultrasound has been enzymatically hydrolyzed in this study. Three different cellulase enzyme concentration (1.25, 2.5, and 5 g/L) were employed to investigate their effect towards the concentration and yield of reducing sugar produced from the pretreated OPEFB. Results showed that the concentration and yield of reducing sugar were increased as the increasing enzyme concentration. The highest concentration and yield of reducing sugar has been obtained from the highest concentration of enzyme at 5 g/L. Besides, to fit and reproduce the experimental data, a fully empirical model and fractal model were employed. Fitting curve and statistical parameter showed the goodness-of-fit of both model with the experimental data at all concentration of enzyme. The empirical model showed a significant increase in the kinetic constant as the concentration of enzyme increases from 1.25 to 2.5 g/L and then slightly decrease at the highest concentration of enzyme at 5 g/L. Meanwhile, the fractal model showed a linear increase in the kinetic constant along with the increase of enzyme concentration. From this study, it can be inferred that the fractal model showed better kinetic constant values rather than the empirical model, since a higher enzyme concentration results in a higher kinetic constant which indicating a higher reaction rate.
UR - http://www.scopus.com/inward/record.url?scp=85185764402&partnerID=8YFLogxK
U2 - 10.1063/5.0160048
DO - 10.1063/5.0160048
M3 - Conference contribution
AN - SCOPUS:85185764402
T3 - AIP Conference Proceedings
BT - AIP Conference Proceedings
A2 - Kusuma, Andyka
A2 - Fatriansyah, Jaka Fajar
A2 - Dhelika, Radon
A2 - Pratama, Mochamad Adhiraga
A2 - Irwansyah, Ridho
A2 - Maknun, Imam Jauhari
A2 - Putra, Wahyuaji Narottama
A2 - Ardi, Romadhani
A2 - Harwahyu, Ruki
A2 - Harahap, Yulia Nurliani
A2 - Lischer, Kenny
PB - American Institute of Physics Inc.
T2 - 17th International Conference on Quality in Research, QiR 2021 in conjunction with the International Tropical Renewable Energy Conference 2021, I-Trec 2021 and the 2nd AUN-SCUD International Conference, CAIC-SIUD
Y2 - 13 October 2021 through 15 October 2021
ER -