Effects of growth rate of eastern poplar trees on the chemical and morphological characteristics of wood fibers

Borukanlu, Mohammad Reza; Zadeh, Omid Hossein; Moradpour, Payam; Khedive, Ehsan

doi:10.1007/s00107-021-01711-4

Cited by 8 publications

(9 citation statements)

References 46 publications

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“…The average value of the Runkel ratio, slenderness ratio, and fl exibility coeffi cient of P. deltoides were 0.53, 46.59, and 0.65 [28], whereas in the present study P. ciliata was 0.49, 50.5, and 0.67, respectively. Due to the above-given facts and comparison of paper properties, it's quite obvious that P. ciliata has all the qualities of P. deltoides.…”

Section: Discussioncontrasting

confidence: 74%

“…During paper manufacturing, the Runkel ratio provides useful pulp yield or digestibility for good quality papers, the values of Runkel ratio in present work P. alba (0.61), P. ciliata (0.41-0.64), P. euphratica (0.51-0.92) and (0.53). The Runkel ratio of P. deltoides was reported 0.53 [28] and the average value of P. ciliata was 0.49 in the present study with a range of 0.41-0.64 and the mean value of the Runkel ratio of P. nigra was 0.53 followed by P. alba (0.61) and P. euphratica (0.67) respectively (Table 5).…”

Section: Wood Properties Related To Pulp and Paper Qualitysupporting

confidence: 55%

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Wood Fiber Characteristics of Underutilized Poplar Species and Comparision with P. deltoides in Terms of their Pulp and Paper Quality

Yadav¹,

Kumar²,

Ansari³

2022

J Biomed Res Environ Sci

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The pulp and Paper industries are growing at a tremendous rate. To satisfy the raw material supply and sustainability of their future industries need an alternative resource from fast-growing tree species. Poplar is one of the world’s fastest-growing lightwood trees with its used in several industries. The present work relies on the comparative fiber morphological dimensions of four species of poplar i.e. Populus alba L, Populus ciliata Wall. ex Royle, Populus euphratica Oliv, and Populus nigra L. The quality of pulp and paper was directly related to the fiber dimensions i.e., fiber length, fiber lumen diameter, and fiber wall thickness. A number of wood properties related to paper quality were also derived from the fiber dimensions including the Runkel ratio, flexibility coefficient, solid factors, luce’s-shape factors, slenderness ratio and wall coverage ratio. The mean value of fiber length, fiber diameter, fiber wall thickness and basic density of these four species ranged from 919-1425 μm, 19.71-25.85 μm, 2.72-4.99 μm and 0.38-0.54 g cm⁻¹ respectively. The prominent objective was to compare the fiber quality of these four poplar species within among self and also with an exotic poplar species Populus deltoides and other fast-growing tree species.

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Section: Discussioncontrasting

confidence: 74%

Section: Wood Properties Related To Pulp and Paper Qualitysupporting

confidence: 55%

Wood Fiber Characteristics of Underutilized Poplar Species and Comparision with P. deltoides in Terms of their Pulp and Paper Quality

Yadav¹,

Kumar²,

Ansari³

2022

J Biomed Res Environ Sci

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“…Cellulose is the main component of plant cell walls. The cellulose in different parts of the plant is different [30]. Among the medicinal materials, Zanthoxylum bungeanum Maxim and Illicium verum Hook.…”

Section: Discussionmentioning

confidence: 99%

Saprophytic Bacillus Accelerates the Release of Effective Components in Agarwood by Degrading Cellulose

Yang

Chen

et al. 2022

Molecules

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The value of Agarwood increases with time due to the gradual release of its major components, but the mechanism behind this remains unclear. Herein we reveal that the potential driving force of this process is the degradation of cellulose in Agarwood by its saprophytic Bacillus subtilis. We selected 10-year-old Agarwood from different places and then isolated the saprophytic bacteria. We confirmed these bacteria from different sources are all Bacillus and confirmed they can degrade cellulose, and the highest cellulase activity reached 0.22 U/mL. By co-cultivation of the bacterium and Agarwood powder, we found that three of the strains could release the effective components of Agarwood, while they had little effect in increasing the same components in living Aquilaria sinensis. Finally, we demonstrated that these saprophytic Bacillus subtilis have similar effects on Zanthoxylum bungeanum Maxim and Dalbergiaod orifera T. Chen, but not on Illicium verum Hook. f, Cinnamomum cassia Presl and Phellodendron chinense Schneid. In conclusion, our experiment revealed that the saprophytic Bacillus release the effective components of Agarwood by degrading cellulose, and we provide a promising way to accelerate this process by using this bacterial agent.

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“…The phytoextraction efficiency of the PTEs was influenced by factors, such as moisture, organic matter, redox potential, and especially soil pH [26]; however, the efficiency of phytoextraction can be increased by agronomic practices, such as soil fertilization and conditioning, enhancing metal bioavailability, plant selection and length of rotation [27]. The length of rotation of willow and poplar clones can affect biomass yield [28], which is an important parameter for phytoextraction [27], as well for wood quality and composition [29]. The harvested wood can be utilized for lumber or as a renewable energy source.…”

Section: Introductionmentioning

confidence: 99%

“…bioethanol). According DeBell et al [32] poplar wood from trees harvested at older ages had higher wood density and fiber length, and was suitable for manufacturing secondary products [29]. Lignin surfaces contain carboxylic-and phenolic-type groups with high affinity for PTE ions to bind them in the order: Pb > Cd > Zn [33].…”

Section: Introductionmentioning

confidence: 99%

Biomass yield and metal phytoextraction efficiency of Salix and Populus clones harvested at different rotation lengths in the field experiment

Prouzová,

Kubátová,

Mercl

et al. 2024

Chem. Biol. Technol. Agric.

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Background Phytoextraction belongs to environmentally well-accepted remediation technologies to remove metals from contaminated soils. Due to long-time requirement, sufficient data for proper phytoextraction evaluation are missing. Four clones of fast-growing trees: two willow species (S1), Salix viminalis L. (Salix schwerinii E.L.Wolf × S. viminalis) × S. viminalis) and (S2)—Salix smithiana (Salix × smithiana Willd.), and two poplar clones (P1), Populus Max-4 (Populus nigra L. × Populus maximowiczii A. Henry) and (P2) Wolterson (P. nigra L.) were cultivated under field conditions at medium-to-high Cd and Pb, and low Zn soil contamination to assess trees’ long-term ability of biomass production and removal of potentially toxic elements (PTEs). The biomass yield and PTE uptake were measured during 8 years of regular growth under three rotation lengths: four harvests following 2-year periods (4 × 2y), two harvests in 4-year periods (2 × 4y), and one harvest representing 8 years of growth (1 × 8y). Results In most cases, the highest annual dry biomass yield was achieved with a 2 × 4y rotation (P1 = 20.9 t ha−1 y−1, S2 = 18.4 t ha−1y−1), and the yield decreased in order 2 × 4y > 1 × 8y > 4 × 2y of harvesting periods. Only clone S1 showed a different pattern. The differences in biomass yield substantially affected the PTE phytoextraction. The greatest amount of Cd and Zn was removed by willow S2, with the highest biomass yield, and the strongest ability to accumulate PTEs. With 2 × 4y rotation, S2 removed a substantial amount of Cd (9.07%) and Zn (3.43%) from the topsoil horizon (0–20 cm) and 5.62% Cd and 2.04% Zn from horizon 20–40 cm; phytoextraction rate was slightly lower for 1 × 8y rotation. The poplar P1 removed the most Pb in the 1 × 8y rotation, but the overall Pb phytoextraction was negligible. The results indicated that lignin and cellulose contents increased, and hemicellulose content decreased with increased concentrations of Cd, Pb and Zn in poplars wood. Conclusions The data confirmed that phytoextraction over longer harvest periods offered promising results for removing Cd from medium- to high-level contaminated soils; however, the ability of Pb removal was extremely low. The longer harvest period should be more economically feasible. Graphical Abstract

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Effects of growth rate of eastern poplar trees on the chemical and morphological characteristics of wood fibers

Cited by 8 publications

References 46 publications

Wood Fiber Characteristics of Underutilized Poplar Species and Comparision with P. deltoides in Terms of their Pulp and Paper Quality

Wood Fiber Characteristics of Underutilized Poplar Species and Comparision with P. deltoides in Terms of their Pulp and Paper Quality

Saprophytic Bacillus Accelerates the Release of Effective Components in Agarwood by Degrading Cellulose

Biomass yield and metal phytoextraction efficiency of Salix and Populus clones harvested at different rotation lengths in the field experiment

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