Improved Cellulose Yield in the Production of Dissolving Pulp from Bamboo Using Acetic Acid in Prehydrolysis

Li, Guang; Fu, Shiyu; Zhou, Aijing; Zhan, Hui

doi:10.15376/biores.10.1.877-886

Cited by 9 publications

(7 citation statements)

References 22 publications

(24 reference statements)

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“…Additionally, the Kappa numbers recorded for Z. mays and S. bicolor pulps were comparable with that recorded for E. globulus pulp (17) [ 34 ] and lower than that for bamboo ( Gigantochloa scortechinii ) (14.2–18.1) [ 90 ]. Kraft pulping of bamboo chips was observed to produce a Kappa number of 17.4 [ 91 ], which is nearly comparable with our results for Z. mays (16.66) and S. bicolor (17.66). Additionally, the value was lower than those for some softwood pulps such as European larch (56.83), birch (23.38), and pine (42.22) [ 20 ].…”

Section: Resultssupporting

confidence: 89%

Antifungal Activities of Wood and Non-Wood Kraft Handsheets Treated with Melia azedarach Extract Using SEM and HPLC Analyses

et al. 2021

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The main objective of this work was to evaluate pulp produced by kraft cooking for wood materials (WMT) (Bougainvillea spectabilis, Ficus altissima, and F. elastica) and non-wood materials (NWMT) (Sorghum bicolor and Zea mays stalks) and to study the fungal activity of handsheets treated with Melia azedarach heartwood extract (MAHE) solutions. Through the aforementioned analyses, the ideal cooking conditions were determined for each raw material based on the lignin percentage present. After cooking, pulp showed a decrease in the Kappa number produced from WMT, ranging from 16 to 17. This was in contrast with NWMT, which had Kappa numbers ranging from 31 to 35. A difference in the optical properties of the pulp produced from WMT was also observed (18 to 29%) compared with pulp produced from NWMT (32.66 to 35.35%). As for the evaluation of the mechanical properties, the tensile index of the pulp ranged from 30.5 to 40 N·m/g for WMT and from 44.33 to 47.43 N·m/g for NWMT; the tear index ranged from 1.66 to 2.55 mN·m2/g for WMT and from 4.75 to 5.87 mN·m2/g for NWMT; and the burst index ranged from 2.35 to 2.85 kPa·m2/g for WMT and from 3.92 to 4.76 kPa·m2/g for NWMT. Finally, the double fold number was 3 compared with that of pulp produced from pulp, which showed good values ranging from 36 to 55. In the SEM examination, sheets produced from treated handsheets with extract from MAHE showed no growth of Aspergillus fumigatus over paper discs manufactured from B. speclabilis pulp wood. Pulp paper produced from Z. mays and S. bicolor stalks was treated with 1% MAHE, while pulp paper from F. elastica was treated with 0.50% and 1% MAHE. With the addition of 0.5 or 1% MAHE, Fusarium culmorum showed no increase in growth over the paper manufactured from B. speclabilis, F. altissima, F. elastica and Zea mays pulps with visual inhibition zones found. There was almost no growth of S. solani in paper discs manufactured from pulps treated with 1% MAHE. This is probably due to the phytochemical compounds present in the extract. The HPLC analysis of MAHE identified p-hydroxybenzoic acid, caffeine, rutin, chlorogenic acid, benzoic acid, quinol, and quercetin as the main compounds, and these were present in concentrations of 3966.88, 1032.67, 834.13, 767.81, 660.64, 594.86, and 460.36 mg/Kg extract, respectively. Additionally, due to the importance of making paper from agricultural waste (stalks of S. bicolor and Z. mays), the development of sorghum and corn with high biomass is suggested.

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Section: Resultssupporting

confidence: 89%

Antifungal Activities of Wood and Non-Wood Kraft Handsheets Treated with Melia azedarach Extract Using SEM and HPLC Analyses

et al. 2021

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“…In terms of hemicellulose, a large variation was also observed; the smallest value registered was of 0.8% [ 22 ] and the largest value was of 33.6%. [ 23 ] Following the same trend of large variations, the values of lignin were also diverse, with averages of 11.2% [ 24 ] to 18.6% [ 21 ] and of ashes from 1.2% [ 25 ] to 10.7%. [ 17 ] In regards to the extractives, values obtained were 3.05% and 10.6% by Li et al.…”

Section: Resultsmentioning

confidence: 99%

“…[ 17 ] In regards to the extractives, values obtained were 3.05% and 10.6% by Li et al. [ 23 ] and Abdul Khalil et al., [ 21 ] respectively.…”

Section: Resultsmentioning

confidence: 99%

Physical, Chemical, Mechanical, and Microstructural Characterization of Banana Pseudostem Fibers from Musa Sapientum

Silva

Ribeiro

Demartini

et al. 2020

Macromolecular Symposia

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The analysis and exploration of natural fibers in the field of polymer composites contribute to the development of new natural reinforcement materials. This project's purpose is to evaluate the physical (density, diameter, water absorption, and contact angle), chemical (FTIR and TGA), and mechanical properties (tensile strength and pull‐out testing), as well as the microstructural characteristics (confocal laser and electron scanning microscopy) of the pseudostem fiber of the banana type “Bluggoe” (Musa sapientum). The goal is to evaluate its possible applications in the field of polymer compounds based on the observations. The results showed that the fibers presented physical, chemical, and mechanical properties within the expected results for natural fibers. The banana pseudostem fiber presented density of 0.22g/cm³; 49.51% in mass of cellulose, 27.80% of hemicellulose, and 27.77% of lignin; the diameter measurements are 0.293 ± 0.091 mm; and the strength tests have values of 583.46 ± 302.26 MPa. The banana pseudostem‐fiber results are compared to those of other researchers of natural fibers; it is concluded that these banana fibers can be a suitable alternative source to synthetic fibers, and can then be used as reinforcement in laminated composites.

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“…Struktur hemiselulosa yang bercabang membuat benang rayon rapuh dan mudah putus. Selain itu, hemiselulosa dapat membuat kualitas produk rayon menjadi rendah karena hemiselulos a cenderung menyebabkan warna serat rayon menjadi kekuningan (Li, Fu, Zhou, & Zhan, 2015;Sugesty & Setiawan, 2016). Serat rayon yang berkualitas dapat diperoleh jika proses pembuatannya menggunakan pulp rayon C dan D.…”

Section: Kelarutanunclassified

Karakteristik Pulp Rayon Sulfit Asam Dan Prehidrolisis Kraft Komersial Berdasarkan Sni 938:2017

Purwita

Sugesty²,

Rachmanasari³

2020

j. standard.

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<p>Pulp rayon atau pulp larut (<em>dissolving pulp</em>) merupakan pulp dengan kandungan selulosa alfa tinggi dan kandungan komponen lain seperti lignin, abu, abu tak larut asam, kelarutan dalam alkali, dan ekstraktif rendah. Pulp rayon merupakan bahan baku untuk proses pembuatan serat rayon yang digunakan pada industri tekstil dan pakaian jadi. Penelitian ini bertujuan untuk mempelajari karakteristik pulp rayon sulfit asam dan prehidrolisis kraft komersial yang kemudian dibandingkan dengan persyaratan mutu SNI 938:2017 Pulp rayon. Pulp rayon komersial yang diperoleh dari industri pulp rayon dan industri rayon di dalam negeri maupun impor dianalisis sesuai dengan persyaratan mutu SNI 938:2017. Parameter analisisnya adalah kadar air (SNI 08-7070-2005); selulosa alfa (SNI 8400:2017 (T 203 cm-09, IDT)), kelarutan dalam alkali (SNI 692:2010), ekstraktif diklorometana (DCM) (SNI 8401:2017 (T 204 cm-07, IDT)), abu (SNI 0442:2009), abu tidak larut asam (SNI ISO 776:2010), Ca dan Fe (TAPPI T 266 om-18); viskositas (SNI 8402:2017 (T 230 om-13, IDT)); viskositas intrinsik (SNI 5351:2012); dan derajat cerah ISO (SNI 2470-1:2014). Analisis dilakukan dengan 3 ulangan dan hasil dinyatakan sebagai rata-rata. Berdasarkan percobaan, pulp rayon prehidrolisis kraft memiliki kandungan selulosa alfa yang lebih tinggi, S10 dan S18 yang lebih rendah, dan viskositas yang lebih rendah dibandingkan pulp rayon sulfit asam. Dari lima jenis pulp rayon komersial, hanya dua jenis pulp rayon komersial yang memenuhi persyaratan mutu SNI 938:2017. Kedua pulp rayon tersebut merupakan pulp rayon kayudaun proses prehidrolisis kraft.</p>

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Improved Cellulose Yield in the Production of Dissolving Pulp from Bamboo Using Acetic Acid in Prehydrolysis

Cited by 9 publications

References 22 publications

Antifungal Activities of Wood and Non-Wood Kraft Handsheets Treated with Melia azedarach Extract Using SEM and HPLC Analyses

Antifungal Activities of Wood and Non-Wood Kraft Handsheets Treated with Melia azedarach Extract Using SEM and HPLC Analyses

Physical, Chemical, Mechanical, and Microstructural Characterization of Banana Pseudostem Fibers from Musa Sapientum

Karakteristik Pulp Rayon Sulfit Asam Dan Prehidrolisis Kraft Komersial Berdasarkan Sni 938:2017

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