Kelarutan Lignin Kayu Cepat Tumbuh dalam Ekstraksi Alkali

Nawawi, Deded Sarip; Fatrawana, Adesna; Syafii, Wasrin

doi:10.22146/jik.v15i1.1512

Cited by 3 publications

(3 citation statements)

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“…Alkali pretreatment for 1 h of boiling decreased the MC, sional stability (Fatrawana et al, 2019;Hornus et al, 2020). Additionally, alkali extraction dissolves part of lignin (Nawawi et al, 2021) which may contribute to the variation in wood crystallinity. The heat treatment carried out during densification is suspected of facilitating chemical properties alterations and can damage the hydrogen bonds between hemicellulose-lignin molecules (Amin and Dwianto, 2006).…”

Section: Density and Moisture Content (Mc)mentioning

confidence: 99%

Improvement of Dimensional Stability of Tropical Light-Wood Ceiba pentandra (L) by Combined Alkali Treatment and Densification

Nawawi¹,

MARIA²,

FIRDAUS³

et al. 2023

J. Korean Wood Sci. Technol.

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http://www.woodj.org -133 - INTRODUCTIONKapok [Ceiba pentandra (L.) Gaertn] is a fast-growing wood with low physical and mechanical properties as well as natural durability. Its density ranged from 0.23-0.37 g/cm 3 with an average of 0.30 g/cm 3 (Amin and Dwianto, 2006;Brown, 1997), but the potential is high due to being widely planted as a fiber producer.Considering this low density, kapok wood is only used for non-structural materials such as cast boards. Since there is a shortage of supply from natural forests, fast-growing species have become a raw material source for the wood industry, originating from the plantation and rural forests. The wood from plantation forests is commonly fast-growing species with low physical and mechanical properties. The low density and dimensional

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Section: Density and Moisture Content (Mc)mentioning

confidence: 99%

Improvement of Dimensional Stability of Tropical Light-Wood Ceiba pentandra (L) by Combined Alkali Treatment and Densification

Nawawi¹,

MARIA²,

FIRDAUS³

et al. 2023

J. Korean Wood Sci. Technol.

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“…The lignin was washed and precipitated until it was free from acid with hot water. Dry lignin in filter paper was precipitated in an oven at 105°C, cool and weighed until constant (Badan Standardisasi Nasional Indonesia 2008;Nawawi et al 2019). Lignin content was determined using the method of Klason following the formula:…”

Section: Lignin Contentmentioning

confidence: 99%

Physiological resistance responses of rice plant (Oryza sativa) provided with silicate fertilizer to sheath blight disease (Rhizoctonia solani)

AZIZAH,

RACHMAWATI

2023

Biodiversitas

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Abstract. Azizah R, Rachmawati D. 2023. Physiological resistance responses of rice plant (Oryza sativa) provided with silicate fertilizer to sheath blight disease (Rhizoctonia solani). Biodiversitas 24: 3785-3795. Sheath blight disease that is caused by the fungus Rhizoctonia solani Kühn generally leads to the reduction of rice yields. The application of silicate fertilizers can increase the resistance to pathogens. This research aimed to determine the effect of silicate fertilizer application on the physiological resistance responses of rice plants to R. solani, the primary pathogen responsible for rice sheath blight. This study used three rice cultivars with different resistance levels to sheath blight, including Pandan Wangi (resistant), Cisadane (susceptible), and IR64 (moderately resistant), which were treated with three doses of silicate fertilizer 0 kg ha-1, 200 kg ha-1 and 400 kg ha-1 with sheath blight inoculation and without inoculation. The results showed that Pandan Wangi provided with 200 kg ha-1 silicate fertilizer produced the highest reduction in the percentage of relative lesion height (RLH), and the application of 400 kg ha-1 silicate fertilizer had a greater positive effect of reducing the lesion in Cisadane and IR64. In susceptible and moderately resistant cultivars, Cisadane and IR64, higher doses of silicate fertilizer have a better effect on strengthening plant tissue during inoculation treatments. The application of 400 kg ha-1 silicate fertilizer without inoculation significantly affected relative water content. In the moderately resistant cultivar IR64, the silicate fertilizer played a role in the physiological response by strengthening the plant tissue, as indicated by the increasing lignin content, sclerenchyma and cuticle thickness.

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“…Lignin stands out among various promising adsorbents, such as zeolite, diatom, clay, humic acid, and silica, due to several distinct advantages. Firstly, lignin is derived from plant biomass, particularly wood, making it a renewable and abundant resource (Nawawi, Fatrawana, & Syafii, 2021). This contrasts with certain synthetic adsorbents that rely on non-renewable materials.…”

Section: Introductionmentioning

confidence: 99%

Integrating Heavy Metal Adsorption on Organic Waste Materials into Defense and Security Studies: A Sustainable Approach

Sekarini,

Ariyanti

2023

Pertahanan

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This study aims to examine the plausible fusion of heavy metal adsorption through lignin derived from organic waste materials into the realm of defense and safety studies. This study underscores the imperative nature of addressing heavy metal pollution within defense operations and environmental conservation. It proposes utilizing lignin, derived from organic waste materials, as a pivotal solution to combat heavy metal contamination. By synthesizing insights from existing literature, this research delves into lignin's potential as a highly effective adsorbent tailored for the defense sector. The study illuminates lignin's versatility in interacting with heavymetals through multifaceted adsorption mechanisms, offering a sustainable strategy to mitigate environmental harm while fortifying national resilience. Derived from diverse biomass sources, including peanut shells, cocoa pod shells, coconut shells, rice husks, and empty oil palm fruit bunches, lignin exhibits promising adsorption capacitiesattributed to its ample surface area and diverse functional groups. Emphasizing a holistic perspective, this research advocates for an integrated approach that harnesses lignin's robust adsorption capabilities to meet the specific demands of defense and security, envisioning a future that is both secure and sustainable. This is attributed to the inherent properties of lignin, such as its abundant surface area and diverse functional groups. The lignin derived from these biomasses offers a versatile and effective solution, showcasing high adsorption potential due to its ability to accommodate various heavy metal ions and contribute to sustainable environmental remediation practices. By synergizing lignin's robust adsorption attributes with therequisites of defense and security, this research advocates for a comprehensive approach, fostering a vision of a secure and sustainable future.

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Kelarutan Lignin Kayu Cepat Tumbuh dalam Ekstraksi Alkali

Cited by 3 publications

References 0 publications

Improvement of Dimensional Stability of Tropical Light-Wood Ceiba pentandra (L) by Combined Alkali Treatment and Densification

Improvement of Dimensional Stability of Tropical Light-Wood Ceiba pentandra (L) by Combined Alkali Treatment and Densification

Physiological resistance responses of rice plant (Oryza sativa) provided with silicate fertilizer to sheath blight disease (Rhizoctonia solani)

Integrating Heavy Metal Adsorption on Organic Waste Materials into Defense and Security Studies: A Sustainable Approach

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