Kinetic Study of Oil Palm Empty Fruit Bunch Enzymatic Hydrolysis

Meilany, Diah; Mardawati, Efri; Kresnowati, Made Tri Ari Penia; Setiadi, Tjandra

doi:10.14710/reaktor.17.4.197-202

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…[25] and Meilany et al [26] reported the optimum temperature for xylan hydrolysis for obtaining the highest xylose yield at 60 °C. In contrast, Pappu and Gummadi [37] and Sánchez et al [28,39] reported the optimum temperature for fermentation at 35 °C.…”

Section: Mapping the Effects Of Temperature On Hydrolysis And Fermentationmentioning

confidence: 99%

“…However, the optimum temperature for conducting hydrolysis and fermentation simultaneously has been overlooked; the SSF was conducted at the optimum fermentation temperature, leading to low enzymatic hydrolysis activity. The optimum temperature of xylan hydrolysis using xylanase is reported in the range of 40-70 °C [25,26], whereas the optimum temperature for xylitol-producing yeast fermentation is reported in 10-44 °C [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

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Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

Hidayatullah

Makertihartha

Setiadi

et al. 2021

Bull. Chem. React. Eng. Catal.

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Simultaneous saccharification and fermentation (SSF) configuration offers efficient use of the reactor. In this configuration, both hydrolysis and fermentation processes are conducted simultaneously in a single bioreactor, and the overall processes may be accelerated. However, problems may arise if both processes have different optimum conditions, and therefore process optimization is required. This paper presents a mathematical model over SSF strategy implementation for producing xylitol from the hemicellulose component of lignocellulosic materials. The model comprises the hydrolysis of hemicellulose and the fermentation of hydrolysate into xylitol. The model was simulated for various process temperatures, prior hydrolysis time, and inoculum concentration. Simulation of the developed kinetics model shows that the optimum SSF temperature is 36 °C, whereas conducting prior hydrolysis at its optimum hydrolysis temperature will further shorten the processing time and increase the xylitol productivity. On the other hand, increasing the inoculum size will shorten the processing time further. For an initial xylan concentration of 100 g/L, the best condition is obtained by performing 21-hour prior hydrolysis at 60 °C, followed by SSF at 36 °C by adding 2.0 g/L inoculum, giving 46.27 g/L xylitol within 77 hours of total processing time. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Mapping the Effects Of Temperature On Hydrolysis And Fermentationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

Hidayatullah

Makertihartha

Setiadi

et al. 2021

Bull. Chem. React. Eng. Catal.

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show abstract

“…However, the optimum temperature for conducting both hydrolysis and fermentation simultaneously has been overlooked, the SSF was conducted at the optimum fermentation temperature that led to low enzymatic-hydrolysis activity. The optimum temperature of xylan hydrolysis using xylanase is reported in the range of 40-70 o C [26,27], whereas the optimum temperature for xylitol-producing yeast fermentation is reported in the range of 10-44 o C [28][29][30][31]. Conducting the SSF at the optimum temperature for both hydrolysis and fermentation would significantly increase the process performance.…”

Section: Introductionmentioning

confidence: 99%

Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

Hidayatullah

Setiadi

Kresnowati

2021

Preprint

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Simultaneous saccharification and fermentation (SSF) configuration offers an efficient used of the reactor. In this configuration, both the hydrolysis and fermentation processes are conducted simultaneously in a single bioreactor and the overall process may be accelerated. Problems may arise if both processes have different optimum conditions, and therefore process optimization is required. This paper presents the development of mathematical model over SSF strategy implementation for producing xylitol from hemicellulose component of lignocellulosic materials. The model comprises of the hydrolysis of hemicellulose and the fermentation of hydrolysate into xylitol. The model was simulated for various process temperature, prior hydrolysis time, and inoculum concentration. Simulation of the developed kinetics model shows that the optimum SSF temperature is 36oC, whereas conducting a prior hydrolysis at its optimum hydrolysis temperature will further shorten the processing time and increase the xylitol productivity. On the other hand, increasing the inoculum size will shorten the processing time further. For an initial xylan concentration of 100 g/L, the best condition is obtained by performing 21-hour prior hydrolysis at 60oC, followed by SSF at 36oC by adding 2.0 g/L inoculum, giving 46.27 g/L xylitol within 77 hours of total processing time.

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Kinetic Study of Oil Palm Empty Fruit Bunch Enzymatic Hydrolysis

Abstract: As lignocellulosic biomass, Oil Palm Empty Fruit Bunch (OPEFB)

Cited by 2 publications

References 8 publications

Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

Modelling Based Analysis and Optimization of Simultaneous Saccharification and Fermentation for the Production of Lignocellulosic-Based Xylitol

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