Reactivity Improvement of Bamboo Dissolving Pulp by Xylanase Modification

Wu, Chaojun; Zhou, ShuFang; Li, Ronggang; Wang, Daiqi; Zhao, Chuanshan

doi:10.15376/biores.10.3.4970-4977

Cited by 11 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pulp rayon atau pulp larut (dissolving pulp) merupakan pulp putih rendemen rendah (30 -35%) yang memiliki kandungan selulosa alfa tinggi (lebih dari 90%), namun kandungan hemiselulosa, ekstraktif, dan abu rendah (Cao et al, 2014;Sixta, 2008;Wu, Zhou, Li, Wang, & Zhao, 2015). Pulp rayon memiliki keunggulan dibandingkan pulp kertas yaitu nilai derajat cerah yang lebih tinggi, berat molekul selulosa yang lebih seragam dan aksesibilitas serta reaktivitas yang tinggi (Matin, Rahaman, Nayeem, Sarkar, & Jahan, 2015;Roselli, Hummel, Monshizadeh, Maloney, & Sixta, 2014).…”

Section: Tinjauan Pustakaunclassified

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

Purwita

Sugesty²,

Rachmanasari³

2020

j. standard.

View full text Add to dashboard Cite

<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>

show abstract

Section: Tinjauan Pustakaunclassified

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

Purwita

Sugesty²,

Rachmanasari³

2020

j. standard.

View full text Add to dashboard Cite

show abstract

“…Up to now, common techniques used to enhance the performance of natural bamboo materials include chemical, physical, physicochemical, and biological treatments [26][27][28]. However, each of these methods has its own advantages and drawbacks, and researchers must choose the most suitable, cost-effective, and efficient modification approach based on their specific applications.…”

Section: Introductionmentioning

confidence: 99%

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Zheng,

Yan,

Lou

et al. 2023

Forests

View full text Add to dashboard Cite

In light of continual societal advancement and escalating energy consumption, the pursuit of green, low-carbon, and environmentally friendly technologies has become pivotal. Bamboo, renowned for its diverse advantages encompassing swift growth, ecological compatibility, robust regenerative properties, commendable mechanical characteristics, heightened hardness, and abundant availability, has discovered applications across various domains, including furniture and construction. Nevertheless, natural bamboo materials are plagued by inherent limitations, prominently featuring suboptimal hydrophobicity and vulnerability to fracture, thereby constraining their broad-scale application. Thus, the paramount concern is to enhance the performance of bamboo materials through modification. However, prevailing reviews of bamboo modification predominantly concentrate on physical or chemical approaches, resulting in a conspicuous absence of a comprehensive overview of bamboo modification techniques. This review explores an array of bamboo treatment modalities and delivers a valuable assessment of bamboo modification, offering significant guidance for forthcoming bamboo enhancement and utilization endeavors.

show abstract

“…The major components of traditional biocomposites, lignocellulosic materials, have been used to produce binder-less boards using a similar procedure, which functions mainly by softening and plasticizing wood, potentially aided by reactions stemming from hemicelluloses and lignin. , Fungal pretreatment may accelerate this effect by degrading the polymers into smaller molecules. − At the initial stage of colonization, white-rot fungi secrete enzymes that create lignin oxidants. , The released lignin radicals could potentially contribute to covalent bonding . Several studies have suggested positive correlations between the enzyme loading and the strength of the resulting composite. − …”

Section: Introductionmentioning

confidence: 99%

Functionality of Surface Mycelium Interfaces in Wood Bonding

Sun

Tajvidi

Howell

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Filamentous fungi have been considered as candidates to replace petroleum-based adhesives and plastics in novel composite material production, particularly those containing lignocellulosic materials. However, the nature of the role of surface mycelium in the adhesion between lignocellulosic composite components is not well-known. The current study investigated the functionality of surface mycelium for wood bonding by incubating Trametes versicolor on yellow birch veneers and compared the lap-shear strengths after hot-pressing to evaluate if the presence of surface mycelium can improve the interface between two wood layers and consequently improve bonding. We found that the lap-shear strength of the samples was enhanced by the increase of surface mycelium coverage up to 8 days of incubation (up to 1.74 MPa) without a significant wood weight loss. We provide evidence that the bottom surface of the mycelium layer is more hydrophilic, contains more small-scale filamentous structure and contains more functional groups, resulting in better bonding with wood than the top surface. These observations confirm and highlight the functionality of the surface mycelium layer for wood bonding and provide useful information for future developments in fully biobased composites manufacturing.

show abstract

Reactivity Improvement of Bamboo Dissolving Pulp by Xylanase Modification

Cited by 11 publications

References 22 publications

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

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

Modification and Application of Bamboo-Based Materials: A Review—Part I: Modification Methods and Mechanisms

Functionality of Surface Mycelium Interfaces in Wood Bonding

Contact Info

Product

Resources

About