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Pretreatment of Oil Palm Empty Fruit Bunch (OPEFB) at Bench-Scale High Temperature-Pressure Steam Reactor for Enhancement of Enzymatic Saccharification

International Journal of Renewable Energy Development : JRED · Vol. 10 No. 2 (2021) · hlm. 157–169

DOI
10.14710/ijred.2021.32343
ISSN
2252-4940
Terbit
2021-05-01
Penerbit
Center of Biomass & Renewable Energy (CBIORE)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Upscaling of biomass pretreatment from laboratory scale to a bench-scale reactor is one of the important steps in the application of the pretreatment for pilot or commercial scale. This study reports the optimization of pretreatment conditions, namely reaction temperature and time, by one factor at a time (OFAT) method for the enhancement of enzymatic saccharification of oil palm empty fruit bunch (OPEFB). OPEFB was pretreated using high temperature-pressure steam reactor with different reaction temperatures (160, 170, 180, 190, 200 °C) and times (10, 20, 30, 40, 50 min). The effectiveness of the pretreatment was determined based on chemical compositions of raw OPEFB and OPEFB pulp and sugar production from enzymatic saccharification of the OPEFB pulp. Solubilized components from OPEFB, such as glucose, xylose, formic acid, acetic acid, 5-hydroxymethyl furfural (HMF), and furfural in the hydrolysate that generated during steam pretreatment were also determined. Pretreatment at 180°C for 20 min provides the highest sugar yields (97.30% of glucose yield per initial cellulose and 88.86% of xylose yield per initial hemicellulose). At the optimum condition, 34.9% of lignin and 30.75% of hemicellulose are successfully removed from the OPEFB and resulted in 3.43 delignification selectivity. The relationship between severity factor and by-products generated and the sugars obtained after enzymatic saccharification are discussed. The pulp of OPEFB at the optimum condition was also characterized for its morphological characteristic by scanning electron microscopy (SEM) and crystallinity by X-ray diffractometry (XRD). These pulp characteristics are then compared with those of the raw OPEFB. The steam pretreatment causes some fiber disruptions with more defined and opened structures and increases the crystallinity index (CrI) by 2.9% compared to the raw OPEFB.

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Lucky RisantoAfiliasi tidak diketahui6
Apri Heri IswantoIPB University5
Oktan Dwi NurhayatNational Research and Innovation Agency3
Sita Heris AnitaAfiliasi tidak diketahui3
Fenny Clara ArdiatiAfiliasi tidak diketahui3
Dede Heri Yuli YantoAfiliasi tidak diketahui3
Bambang PrasetyaNational Research and Innovation Agency2
Khaswar SyamsuIPB University2
Wasrin SyafiiAfiliasi tidak diketahui2
Apip AmrullahAfiliasi tidak diketahui2
Obie FarobieAfiliasi tidak diketahui2
Danang Sudarwoko AdiAfiliasi tidak diketahui2
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S Heris AnitaAfiliasi tidak diketahui1
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Dede Heri Yuli YantoAfiliasi tidak diketahui1
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Dimas TriwibowoAfiliasi tidak diketahui1
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Sumber metadata: OAI-PMH (metadata jurnal) https://ijred.cbiore.id/index.php/ijred/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Pretreatment of Oil Palm Empty Fruit Bunch (OPEFB) at Bench-Scale High Temperature-Pressure Steam Reactor for Enhancement of Enzymatic Saccharification</dc:title>
	<dc:creator>Sari, Fahriya Puspita</dc:creator>
	<dc:creator>Falah, Faizatul</dc:creator>
	<dc:creator>Anita, Sita Heris</dc:creator>
	<dc:creator>Ramadhan, Kharisma Panji</dc:creator>
	<dc:creator>Laksana, Raden Permana Budi</dc:creator>
	<dc:creator>Fatriasari, Widya</dc:creator>
	<dc:creator>Hermiati, Euis</dc:creator>
	<dc:subject xml:lang="en-US">Steam pretreatment; bench scale reactor; enzymatic saccharification; OPEFB</dc:subject>
	<dc:description xml:lang="en-US">Upscaling of biomass pretreatment from laboratory scale to a bench-scale reactor is one of the important steps in the application of the pretreatment for pilot or commercial scale. This study reports the optimization of pretreatment conditions, namely reaction temperature and time, by one factor at a time (OFAT) method for the enhancement of enzymatic saccharification of oil palm empty fruit bunch (OPEFB). OPEFB was pretreated using high temperature-pressure steam reactor with different reaction temperatures (160, 170, 180, 190, 200 °C) and times (10, 20, 30, 40, 50 min). The effectiveness of the pretreatment was determined based on chemical compositions of raw OPEFB and OPEFB pulp and sugar production from enzymatic saccharification of the OPEFB pulp.  Solubilized components from OPEFB, such as glucose, xylose, formic acid, acetic acid, 5-hydroxymethyl furfural (HMF), and furfural in the hydrolysate that generated during steam pretreatment were also determined. Pretreatment at 180°C for 20 min provides the highest sugar yields (97.30% of glucose yield per initial cellulose and 88.86% of xylose yield per initial hemicellulose). At the optimum condition, 34.9% of lignin and 30.75% of hemicellulose are successfully removed from the OPEFB and resulted in 3.43 delignification selectivity. The relationship between severity factor and by-products generated and the sugars obtained after enzymatic saccharification are discussed. The pulp of OPEFB at the optimum condition was also characterized for its morphological characteristic by scanning electron microscopy (SEM) and crystallinity by X-ray diffractometry (XRD).  These pulp characteristics are then compared with those of the raw OPEFB. The steam pretreatment causes some fiber disruptions with more defined and opened structures and increases the crystallinity index (CrI) by 2.9% compared to the raw OPEFB.</dc:description>
	<dc:publisher xml:lang="en-US">Center of Biomass &amp; Renewable Energy (CBIORE)</dc:publisher>
	<dc:date>2021-05-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ijred.cbiore.id/index.php/ijred/article/view/32343</dc:identifier>
	<dc:identifier>10.14710/ijred.2021.32343</dc:identifier>
	<dc:source xml:lang="en-US">International Journal of Renewable Energy Development; Vol 10, No 2 (2021): May 2021; 157-169</dc:source>
	<dc:source>2252-4940</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ijred.cbiore.id/index.php/ijred/article/view/32343/pdf</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2021 The Authors. Published by Centre of Biomass and Renewable Energy (CBIORE)</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
</oai_dc:dc>