Oil Palm Trunk of Lignocellulolytic Resources as Raw Material for Production of Fermentable Sugars via Enzymatic Hydrolysis Using Cellulose Thermostable

Polyhydric alcohols are known as excellent solvents for converting the main components of lignocellulose into liquefied products. However, the substances that precipitate in water include not only lignin, but also humins, especially when the lignocellulosic raw material has a high content of carbohydrates. Therefore, the main objective of this study was to investigate the composition of water-insoluble solids from the liquefaction of oil palm trunk using the solvent polyethylene glycol (PEG)/glycerol (4:1, w/w) and by using sulfuric acid as the catalyst. The results showed that the water-insoluble components had a relatively higher average molecular weight and polydispersity than those of the water-soluble components and liquefied products. The production of sugar monomers during liquefaction led to the condensation of furan products (hydroxymethylfurfural and furfural) to form humins. In this case, the humins were incorporated with the lignin and liquefying reagent.

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The Effect of Pulping Process Variable and Elemental Chlorine Free Bleaching on the Quality of Oil Palm Trunk Pulp

JURNAL SELULOSA ◽

10.25269/jsel.v8i02.218 ◽

2018 ◽

Vol 8 (02) ◽

pp. 85

Author(s):

Wieke Pratiwi ◽

Andoyo Sugiharto ◽

Susi Sugesty

Keyword(s):

Physical Properties ◽

Oil Palm ◽

Process Analysis ◽

Chemical Properties ◽

Acacia Mangium ◽

Raw Material ◽

Fiber Morphology ◽

Oil Palm Trunk ◽

Bleached Pulp ◽

Elemental Chlorine

Oil Palm Trunk (OPT) is a non-wood cellulosic raw material which is not yet widely utilized in pulping and papermaking. Research on the utilization of abundant Oil Palm Trunk (OPT) from Sabah (Malaysia) and Lebak (West Java Province) for pulp production was carried out using kraft and soda anthraquinone processes with active alkali (AA) of 13-17%. The raw material was chipped and depithed as pretreatment. Bleaching of pulp was carried out using Elemental Chlorine Free (ECF) process. Analysis of raw material covered physical and chemical properties, and fiber morphology. Both OPT fibers were classified into the moderate fiber length (1.05-1.37 mm). Sabah OPT were very bulky with the chips pile density of 102.16 kg/m3 and 62.91 kg/m3 for undepithed and depithed OPT, respectively. The physical properties of OPT pulps were comparable to that of Acacia mangium pulp. With respect to the bleachability and physical properties, pulping of Lebak OPT using kraft or soda-anthraquinone process with AA of 15% were considered as optimum condition. Depithing on Sabah OPT with high pith content could increase physical properties of pulp. ODEoDnD bleaching sequence on pulps from Sabah OPT gave satisfactory results with respect to the physical properties. Since Sabah OPT had a high pith content, the yields of bleached pulp were relatively low (24.67-26.73%). However, the physical properties of the undepithed and depithed Sabah OPT bleached pulp were higher compared to those of the SNI of Leaf Bleached Kraft Pulp (LBKP).Keywords: depithing, Elemental Chlorine Free, bleached pulp, physical properties, LBKP Pengaruh Variabel Proses Pulping dan Pemutihan Elemental Chlorine Free pada Kualitas Pulp Batang Kelapa SawitAbstrakBatang Kelapa Sawit adalah bahan baku selulosa non-kayu yang belum banyak digunakan dalam pembuatan pulp dan kertas. Penelitian tentang pemanfaatan Batang Kelapa Sawit (BKS) dari Sabah (Malaysia) dan Lebak (Provinsi Jawa Barat) yang berlimpah untuk produksi pulp menggunakan proses kraft dan soda antrakuinon dengan alkali aktif (AA) kisaran 13-17% telah dilakukan. Penyerpihan dan proses depithing bahan baku dilakukan sebagai perlakuan awal. Pemutihan pulp dilakukan menggunakan Elemental Chlorine Free (ECF). Analisis bahan baku mencakup sifat fisik dan kimia, serta morfologi serat. Kedua serat BKS dapat diklasifikasikan sebagai serat moderat dengan panjang 1,05-1,37 mm. BKS dari Sabah sangat ruah dengan densitas tumpukan serpih masing-masing 102,16 kg/m3 untuk yang belum di-depithing dan 62,91 kg/m3 untuk yang telah di-depithing. Sifat fisik pulp BKS sebanding dengan pulp dari Acacia mangium. Sehubungan dengan kemampuan pemutihan dan sifat fisik, pembuatan pulp BKS dari Lebak menggunakan proses kraft atau soda-antrakuinon dengan AA 15% adalah kondisi optimal. Depitihing BKS dari Sabah dengan kandungan pith yang tinggi dapat meningkatkan sifat fisik pulp. Pemutihan dengan urutan ODEoDnD untuk pulp BKS dari Sabah memberikan hasil sifat fisik yang memuaskan. BKS dari Sabah memiliki kandungan pith yang tinggi sehingga rendemen pulp yang diputihkan relatif rendah (24,67-26,73%). Namun, sifat-sifat fisik pulp putih BKS dari Sabah yang belum dan telah di-depithing lebih tinggi dibandingkan SNI Pulp Kraft Putih Kayudaun (LBKP).Kata kunci: depithing, Elemental Chlorine Free, pulp putih, sifat fisik, LBKP

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Organoslov pretreatment of oil palm trunk for enzymatic hydrolysis

Journal of Applied Science ◽

10.14416/j.appsci.2018.05.003 ◽

2018 ◽

Vol 17 (1) ◽

pp. 75-86

Author(s):

Pongsak Noparat

Keyword(s):

Enzymatic Hydrolysis ◽

Oil Palm ◽

Oil Palm Trunk

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Investigation of alkaline hydrogen peroxide pretreatment to enhance enzymatic hydrolysis and phenolic compounds of oil palm trunk

3 Biotech ◽

10.1007/s13205-020-02169-6 ◽

2020 ◽

Vol 10 (4) ◽

Cited By ~ 2

Author(s):

Afrasiab Khan Tareen ◽

Vittaya Punsuvon ◽

Pramuk Parakulsuksatid

Keyword(s):

Hydrogen Peroxide ◽

Phenolic Compounds ◽

Enzymatic Hydrolysis ◽

Oil Palm ◽

Alkaline Hydrogen Peroxide ◽

Oil Palm Trunk

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Biopellet from demineralized oil palm trunk

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/891/1/012022 ◽

2021 ◽

Vol 891 (1) ◽

pp. 012022

Author(s):

N J Wistara ◽

P Diputra ◽

D Hendra

Keyword(s):

Electron Microscopy ◽

Moisture Content ◽

Oil Palm ◽

Calorific Value ◽

Ash Content ◽

Raw Material ◽

Oil Palm Trunk ◽

Lignin Decomposition ◽

Pre Treatment ◽

Scanning Electron

Abstract Oil palm trunk (OPT) is a potential raw material for biopellet manufacturing. This study aimed to reduce the ash content of biopellet through pre-treatment with sulfuric acid. The moisture content, durability, ash content, density, and calorific values of the biopellet were determined according to DIN EN 14961-2 and 51731 standards. Scanning electron microscopy (SEM) indicated the presence of inter-particle interlocking in the highly durable biopellet. Thermal analysis indicated that the mass and water loss, hemicellulose, cellulose, and lignin decomposition occurred at 76.12 ºC, 113.97-200 ºC, 310-360 ºC, and >400 ºC, respectively. Biopellet produced retained a moisture content of 3.40-8.90%, the durability of 97.75-99.38%, ash content after pre-treatment with H2SO4 of 1.02-1.47%, control ash content of 2.20-3.31%, the density of 1.03-1.30 g/cm3, and the calorific value of 3954-4608 kcal/kg. The biopellet quality fulfilled the requirements of DIN EN 14961-2, 51731, and SNI 8021-2014 standard, except for the ash content of the control.

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Pembuatan Plastik Kemasan Terbiodegradasikan Dari Polipropylena Tergrafting Anhidrid Maleat dengan Bahan Pengisi Pati Sagu Kelapa Sawit

Jurnal Kimia VALENSI ◽

10.15408/jkv.v3i2.507 ◽

2013 ◽

Vol 3 (2) ◽

Cited By ~ 2

Author(s):

Tuty Dwi Sriaty Matondang ◽

Basuki Wirjosentono ◽

Darwin Yunus

Keyword(s):

Oil Palm ◽

Thermoplastic Starch ◽

Packaging Material ◽

Raw Material ◽

Sago Starch ◽

Oil Palm Trunk ◽

Biodegradable Packaging ◽

Sem Test ◽

Tensile Strenght

Abstrak Pati sagu kelapa sawit mempunyai potensi yang besar untuk dijadikan filler pada pembuatan bahan kemasan terbiodegradasikan dari polypropylena tergrafting maleat anhidrida. Pati sagu kelapa sawit dapat diekstraksi dari batang kelapa sawit . Grafting polypropylena dengan maleat anhidrida dilakukan dengan metode refluks dari 1 g maleat anhidrida, 0,1 g BPO, 10 g polypropylene dengan xylene sebagai pelarut. Campuran polypropylena tergrafting maleat anhidrida dan pati sagu kelapa sawit dilakukan dengan metode kempa tekan pada temperatur 1700C selama 20 menit dengan variasi polypropylena tergrafting maleat anhidrida dan pati sagu kelapa sawit adalah (99,5: 0,5), (99:1), (98:2), (97:3), ( 96:4) (%b/b) dan tapioka komersil sebagai pembanding dengan variasi (99,5:0,5), (99:1), (99:2) (%b/b). Hasil penelitian menunjukkan campuran dengan perbandingan (97:3) adalah yang paling optimum dimana tensil strenght 16,010 N/m2; elongation et break 8,593% sedangkan pada perbandingan (98:2) harga elongation et break hampir sam dengan harga elongation et break tapioka komersil sebagai pembanding yaitu 3,1875% dan 3,847%. Menurut persyaratan kemasan terbiodegradasikan SNI 7188.7:2011 campuran yang berisi termoplastik, pati alami tidak mengandung prodegradant dan harga elongation et break kurang dari 5% dapat dipakai untuk bahan pembuatan plastik kemasan terbiodegradasikan . Penelitian ini didukung oleh Uji SEM, Uji DTA, Uji FTIR dan Uji kemampuan terurai di alam.Uji SEM, Uji DTA, Uji FTIR dan Uji kemampuan terurai dialam. Kata kunci : kemasan biodegradable, grafting polypropylena, pati dari batang kelapa sawit Abstract Palm sago starch has a big potential to be filler for biodegradable packaging material. Starch of palm sago starch can be extracted of the oil palm trunk. Grafted polypropylena with maleic unhidride by refluks method from 1g maleic unhidride, 0,1 g BPO and 10 g polypropylena with xylene as solvent made PP-g-MA. Mixed between PP-g-MA and PSKS (starch of the oil palm trunkl) with cross clamp method at temperatures 1700C for 20 minutes with variation PP-g-MA and PSKS were (99,5:0,5), (99:1), (98:2), (97:3), (96:4), (%w/w). As a comparison Shanghai brand commercial Tapioca with comparative variation (99,5:0,5) (99:1), (99:2) (%w/w). The reseach yield show that biodegradable packaging PP-g-MA and PSKS (97:3) the most optimum in mechanical characteritic; tensile strenght 16,010N/m2, elongation et break 8,5937%. At the comparison (98:2) tensil strenght 6,9410 N/m2, elongation et break 3,1875% same with tapioca commercial. According to biodegradable packaging requirement ISO 7188.7:2011 mixture containing thermoplastic, starch and elongation et break less than 5% can be used a raw material of plastic biodegradable. The research supported by SEM test, DTA test, FTIR test and Biodegradale test. Keywords : Biodegradable packaging, Grafting Polypropylena, Starch of the oil palm trunk

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