Furfurylation Effects on Discoloration and Physical-Mechanical Properties of Wood from Tropical Plantation Forests

Hadi, Yusuf Sudo; Herliyana, Elis Nina; Pari, Gustan; Pari, Rohmah; Abdillah, Imam Busyra

doi:10.5658/wood.2022.50.1.46

Cited by 21 publications

(12 citation statements)

References 35 publications

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“…The density, WPG, BE, WU, and ASE of untreated and treated samples are presented in The increase in the density of sengon wood in this study was followed by increased WPG value in agreement with the results of Hadi et al (2022), who reported that the furfurylated sample had a higher density than the untreated sample and the increase in WPG value followed the increase in density. The higher the density of the treated wood, the greater the content that filled the wood cell walls and the thicker the wood cell walls (Bowyer et al, 2007).…”

Section: Dimensional Stability Of Sengon Woodsupporting

confidence: 90%

Characteristics of Magnetic Sengon Wood Impregnated with Nano Fe3O4 and Furfuryl Alcohol

Laksono¹,

Rahayu²,

Karlinasari³

et al. 2023

J. Korean Wood Sci. Technol.

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Indonesia cultivates many types of fast-growing wood to overcome the shortage of raw materials and meet the needs of its population. Sengon (Falcataria moluccana Miq.) is a fast-growing wood species widely planted in Indonesia. Sengon wood is a light wood having a specific gravity of 0.33, ranging between 0.24-0.49, and belongs to the strength class IV-V and durability class IV-V (Martawijaya et al., 2005). Typically, sengon wood is typically used as a raw material for making wood crates, particleboards, fiberboards, matches, and handicrafts. The productivity of fast-growing wood is high, but it has several problems, especially those related to physical properties and others (Priadi et al., 2019). Bowyer et al. (2007) stated that fast-growing wood has

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Section: Dimensional Stability Of Sengon Woodsupporting

confidence: 90%

Characteristics of Magnetic Sengon Wood Impregnated with Nano Fe3O4 and Furfuryl Alcohol

Laksono¹,

Rahayu²,

Karlinasari³

et al. 2023

J. Korean Wood Sci. Technol.

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“…In summary, there was a significant difference in color (ΔE) between the untreated wood samples (control) and wood samples impregnated with catechin solutions. This finding is relevant to the study by Hadi et al (2020Hadi et al ( , 2022, who reported that any chemical treatment of wood could potentially change its natural color. However, no color differences were observed among the wood samples treated with catechin solutions at concentrations of 9%, 12%, and 15%.…”

Section: Discoloration After Exposure To the Stain Fungisupporting

confidence: 52%

Stain Fungi and Discoloration Control on Rubberwood (Hevea brasiliensis Muell. Arg.) by Vacuum-Pressure Treatment with Catechin from Gambir (Uncaria gambir Roxb.)

Nandika¹,

Herliyana²,

ARINANA³

et al. 2023

J. Korean Wood Sci. Technol.

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Recently, the morphological and molecular features of five stain fungi infecting rubberwood (Hevea brasiliensis), namely Paecilomyces maximus, Paecilomyces formosus, Penicillium crustosum, Paecilomyces lecythidis and Aspergillus chevalieri, have been studied. Prior to this study, the authors revealed that catechin from gambir (Uncaria gambir) could inhibit the growth of the white-rot fungus Schizophyllum commune, and it was important to determine the bioactivity of the aforementioned agent against A. chevalieri. The efficacy of the biocidal agent was examined using a laboratory wooden block test. Rubberwood blocks, 8 mm in thickness, 20 mm in width, and 30 mm in length, were impregnated with catechin solution at concentrations of 6%, 9%, 12%, and 15% (w/v) using the vacuum-pressure method, and their bioactivity was monitored over three weeks through visual and scanning electron microscope assessment of fungal growth as well as the discoloration intensity of the wood samples. The results showed that catechin treatment increased the resistance of wood samples to A. chevalieri. Overall, the higher the catechin concentration, the lower the fungal growth. The lowest fungal growth was observed in the wood samples treated with 12% and 15% catechin (score of 0), demonstrating no discoloration. In contrast, the fungal growth score of the untreated wood samples reached 4, indicating severe discoloration. Catechins appear to be adequate biofungicides against stain fungi in rubberwood.

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“…Before coloring, the bamboo strips were first measured for L, a*, and b* values using a Minolta CR-400 Chroma Meter. After the coloring process, the bamboo strips were again measured for L, a*, and b* values using the same tool and the color change test results will be compared with the standards in table 1 [9]. This research used 5 samples for each treatment, and in one Color change is calculated using the following formula: The scale of color change in dyed bamboo is listed in the following table [9]: The form of this research design is a completely randomized design with a factorial experiment that has two factors, namely the type of coloring and the presence of preservatives, with each factor having two levels.…”

Section: Preservatives Addition In Dyes Solutionmentioning

confidence: 99%

Evaluation of staining betung bamboo (Dendrocalamus asper) using natural and synthetic dyes with and without the addition of preservatives

Al’Afifah,

Sumardi,

Darwis

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Bamboo is a widely utilized product. The use of dyes in coloring is now becoming important in bamboo dyeing as color can provide consumer appeal and improve aesthetics. Unlike wood, bamboo has a relatively uniform color, which is beige on the inside and green on the outside. Another important step in bamboo processing is preservation. This research examines bamboo colored using synthetic dyes using textile dyes which are azo group, natural dyes derived from the extraction of sappan wood, and examines the addition of borax boric preservatives. There are four treatments: natural dyes with preservatives, natural dyes only, synthetic dyes with preservative, and synthetic dyes only. Several tests were carried out, namely retention, penetration, staining evaluation using the CIELab method, and color change tests. It was found that natural dyes exhibited higher retention than synthetic ones, and both dyes without preservatives surpassed those with preservatives. Penetration was higher in natural dyes and those with preservatives. In comparison to the natural dyes, the color produced from synthetic dyes has a higher red intensity and a darker brightness level. While the addition of preservatives produces a lighter color with a higher brightness value. All treatments showed discoloration due to UV light exposure.

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Furfurylation Effects on Discoloration and Physical-Mechanical Properties of Wood from Tropical Plantation Forests

Cited by 21 publications

References 35 publications

Characteristics of Magnetic Sengon Wood Impregnated with Nano Fe3O4 and Furfuryl Alcohol

Characteristics of Magnetic Sengon Wood Impregnated with Nano Fe3O4 and Furfuryl Alcohol

Stain Fungi and Discoloration Control on Rubberwood (Hevea brasiliensis Muell. Arg.) by Vacuum-Pressure Treatment with Catechin from Gambir (Uncaria gambir Roxb.)

Evaluation of staining betung bamboo (Dendrocalamus asper) using natural and synthetic dyes with and without the addition of preservatives

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