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FIBER DISRUPTION OF BETUNG BAMBOO (Dendrocalamus asper) BY COMBINED FUNGAL AND MICROWAVE PRETREATMENT

BIOTROPIA · Vol. 22 No. 2 (2016) · hlm. 81–94

DOI
10.11598/btb.2015.22.2.363
ISSN
1907-770X, 0215-6334
Terbit
2016-03-21
Penerbit
SEAMEO BIOTROP
Bahasa
en
Lisensi
creativecommons.org/licenses/by-nc-nd/4.0

Abstrak

Combined microwave pretreatment is an effective method to modify carbohydrate and lignin structures of fungal and lignocellulosic materials, thereby improving the hydrolysis process for bioethanol conversion. This study aimed to evaluate the structural changes in carbohydrate and lignin components of betung bamboo following a combined biological–microwave pretreatment. Based on previous findings, a 30-day incubation using 5% and 10% (w/v) inoculum loading of the white-rot fungus Trametes versicolor—which showed the highest delignification selectivity—was selected as the fungal pretreatment. Microwave irradiation was then applied for 5, 10, and 12.5 minutes at 330 W. Characterization of structural changes was conducted using FTIR spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). FTIR analysis revealed that the combined pretreatment affected only the intensity of absorption bands without altering the functional groups. A decline in peak intensity occurred at 1,736 cm⁻¹ (C=O in xylan), 1,373 cm⁻¹ (C–H deformation in cellulose and hemicellulose), 1,165 cm⁻¹ (C–O–C vibration in cellulose and hemicellulose), and 895 cm⁻¹ (β-glycosidic linkage in cellulose). The pretreatment reduced hydrogen bonding in cellulose and weakened lignin–carbohydrate linkages associated with bamboo cellulose crystallinity. A slight increase in crystallinity index was observed due to cleavage of the amorphous fraction. SEM imaging confirmed the disruption of fiber structure, showing increasing degradation with longer microwave exposure durations.

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  • Institut Teknologi Sepuluh Nopember
  • National Research and Innovation Agency
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Euis HermiatiAfiliasi tidak diketahui5
Fahriya Puspita SariAfiliasi tidak diketahui3
Sita Heris AnitaAfiliasi tidak diketahui3
Raden Permana Budi LaksanaAfiliasi tidak diketahui2
Faizatul FalahAfiliasi tidak diketahui2
Apri Heri IswantoIPB University2
Apip AmrullahAfiliasi tidak diketahui2
Obie FarobieAfiliasi tidak diketahui2
Danang Sudarwoko AdiAfiliasi tidak diketahui2
Wahyu DwiantoAfiliasi tidak diketahui2
Danar Agus SusantoInstitut Teknologi Sepuluh Nopember1
Mokh SuefInstitut Teknologi Sepuluh Nopember1
Putu Dana KarningsihInstitut Teknologi Sepuluh Nopember1
Muhammad DaudIPB University1
Wasrin SafiiIPB University1
Arman DelisAfiliasi tidak diketahui1
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Yanico Hadi PrayogoAfiliasi tidak diketahui1
Zikri HamidiAfiliasi tidak diketahui1
Rita Kartika SariAfiliasi tidak diketahui1
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Eva HarlinaAfiliasi tidak diketahui1
Setyanto Tri WahyudiAfiliasi tidak diketahui1
SunardiAfiliasi tidak diketahui1
Wiwin Tyas IstikowatiAfiliasi tidak diketahui1
Swastika PraharyawanAfiliasi tidak diketahui1
Delicia Yunita RahmanAfiliasi tidak diketahui1
Ayu Lana NafisyahAfiliasi tidak diketahui1
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Sumber metadata: OAI-PMH (metadata jurnal) http://journal.biotrop.org/index.php/biotropia/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">FIBER DISRUPTION OF BETUNG BAMBOO (Dendrocalamus asper) BY COMBINED FUNGAL AND MICROWAVE PRETREATMENT</dc:title>
	<dc:creator xml:lang="en">Fatriasari, Widya</dc:creator>
	<dc:creator xml:lang="en">Syafii, Wasrin</dc:creator>
	<dc:creator xml:lang="en">Wistara, Nyoman</dc:creator>
	<dc:creator xml:lang="en">Syamsu, Khaswar</dc:creator>
	<dc:creator xml:lang="en">Prasetya, Bambang</dc:creator>
	<dc:creator xml:lang="en">Anita, S Heris</dc:creator>
	<dc:creator xml:lang="en">Risanto, Lucky</dc:creator>
	<dc:subject xml:lang="en">Betung bamboo</dc:subject>
	<dc:subject xml:lang="en">Carbohydrate and lignin modification</dc:subject>
	<dc:subject xml:lang="en"> Biological–microwave pretreatment</dc:subject>
	<dc:subject xml:lang="en">FTIR</dc:subject>
	<dc:subject xml:lang="en">XRD</dc:subject>
	<dc:subject xml:lang="en">SEM</dc:subject>
	<dc:description xml:lang="en">
Combined microwave pretreatment is an effective method to modify carbohydrate and lignin structures of fungal and lignocellulosic materials, thereby improving the hydrolysis process for bioethanol conversion. This study aimed to evaluate the structural changes in carbohydrate and lignin components of betung bamboo following a combined biological–microwave pretreatment. Based on previous findings, a 30-day incubation using 5% and 10% (w/v) inoculum loading of the white-rot fungus Trametes versicolor—which showed the highest delignification selectivity—was selected as the fungal pretreatment. Microwave irradiation was then applied for 5, 10, and 12.5 minutes at 330 W. Characterization of structural changes was conducted using FTIR spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). FTIR analysis revealed that the combined pretreatment affected only the intensity of absorption bands without altering the functional groups. A decline in peak intensity occurred at 1,736 cm⁻¹ (C=O in xylan), 1,373 cm⁻¹ (C–H deformation in cellulose and hemicellulose), 1,165 cm⁻¹ (C–O–C vibration in cellulose and hemicellulose), and 895 cm⁻¹ (β-glycosidic linkage in cellulose). The pretreatment reduced hydrogen bonding in cellulose and weakened lignin–carbohydrate linkages associated with bamboo cellulose crystallinity. A slight increase in crystallinity index was observed due to cleavage of the amorphous fraction. SEM imaging confirmed the disruption of fiber structure, showing increasing degradation with longer microwave exposure durations.
</dc:description>
	<dc:publisher xml:lang="en">SEAMEO BIOTROP</dc:publisher>
	<dc:date>2016-03-21</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.biotrop.org/index.php/biotropia/article/view/363</dc:identifier>
	<dc:identifier>10.11598/btb.2015.22.2.363</dc:identifier>
	<dc:source xml:lang="en">BIOTROPIA; Vol. 22 No. 2 (2015): BIOTROPIA Vol. 22 No. 2 December 2015; 81 - 94</dc:source>
	<dc:source>1907-770X</dc:source>
	<dc:source>0215-6334</dc:source>
	<dc:source>10.11598/btb.2015.22.2.</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.biotrop.org/index.php/biotropia/article/view/363/265</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2017 BIOTROPIA - The Southeast Asian Journal of Tropical Biology</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>