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Hydrophilic Extracts of the Bark from Six Pinus Species
( Masendra ),( Tatsuya Ashitani ),( Koetsu Takahashi ),( Mudji Susanto ),( Ganis Lukmandaru ) 한국목재공학회 2019 목재공학 Vol.47 No.1
Pine barks are important biomass resources because they are utilised in the production of pine wood and rosins. However, no chemical study has been conducted on the hydrophilic status of pine barks in Indonesia. This aim of this study is to explore the hydrophilic extracts of the barks from six Pinus species (P. elliotii, P. caribeae, P. oocarpa, P. merkusii P. montezumae, and P. insularis). The hydrophilics of pine barks were analysed using gas chromatography-mass spectrometry. The presence of polyphenol contents in the ethanol extracts obtained from the barks of six Pinus species was determined using the tannin-formaldehyde method, Folin-Cioucalteu assay, and vanillin-HCl assay. The ethanol and hot water soluble extractives derived from inner barks were higher in quantity when compared to those derived from the outer bark samples. The polyphenol measurement showed that the highest value of total phenol content was derived from the outer bark of P. montezumae whereas those of the total phenol and tannin- formaldehyde contents were derived from the inner and outer barks of P. oocarpa. GC-MS analysis revealed that nitrogenous compounds are dominant constituents in the inner and outer barks of the six species, followed by sugars and monophenolics, respectively.
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Pandu Yudha Adi Putra Wirabuana,Rina Laksmi Hendrati,Liliana Baskorowati,Mudji Susanto,Mashudi ,Harry Budi Santoso Sulistiadi,Dedi Setiadi,Sumardi ,Syamsu Alam 한국산림과학회 2022 Forest Science And Technology Vol.18 No.2
Clonal teak plantation has been extensively developed in Java and providing a purposeful contribution to improve the productivity of the state forests. It also plays a crucial role in cli- mate change mitigation and serves as a primary source of renewable energy. However, information about its stand dynamics has been rarely documented. This study investigated the growth, biomass, carbon stock, and energy storage along an age series of clonal teak plantation. The study site was located in the Kendal Forest Management Unit. Data were col- lected from 14 different compartments as the priority sites of clonal teak establishment. Every compartment had similar site quality but different in age stand. Results demonstrated that the incremental rate of diameter and height was higher during the initial period between 1 and 3 years. The mean volume increased along with age and reached its max- imum value at 14 years (164.54 m3 ha1). Biomass distribution in each tree component varied from 8.75 to 66.72%. More than 80% biomass production was accumulated above ground. Total carbon stock improved from 2.68 Mg ha1 at 1 year to 54.01 Mg ha1 at 14 years. Our study noted that the total energy storage in clonal teak plantation increased progressively from 22.71 106 MJ ha1 at 1 year to 377.74 106 MJ ha1 at 14 years. Overall, this study concluded the growth, biomass, carbon, and energy in clonal teak increased progressively with age. Further investigations are still required to understand the stand dynamics of clonal teak at different sites.
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Ganis Lukmandaru,Umi Farah Zumaini,Djoko Soeprijadi,Widyanto Dwi Nugroho,Mudji Susanto 한국목재공학회 2016 목재공학 Vol.44 No.4
Eucalyptus pellita F. Muell is one of pulp woods that is being developed through breeding plantation programs in Indonesia. The research aimed at exploring the chemical and morphological characteristics of fiber, and to determine the rank of plus trees from 4 provenances based on the suitability for pulps. The materials included the plus trees of E. pellita (9 years) from the 2nd generation of progeny tests in Pelaihari, South Borneo. Wood properties under investigation included the chemical properties and morphological fiber characteristics (fiber dimensions and its derived properties). In the present study, data were analyzed using descriptive statistic, Analytic Hierarchy Process (AHP) and Pearson``s correlation. Results showed that the chemical properties of E. pellita, i.e. the contents of ethanol-toluene extractives, hot water soluble extractives, holocellulose, alphacelullose, and lignin were 3.08 ± 1.00%, 1.41 ± 0.38%, 75.26 ± 2.58%, 49.02 ± 2.88%, and 29.49 ± 1.86%, respectively. The average values of wood fiber morphology were 1.02 ± 0.08 mm (fiber length), 13.25 ± 1.64 μm (fiber diameter), of 6.94 ± 1.70 μm (lumen diameter), 3.15 ± 0.52 μm (fiber wall thickness), 0.97 ± 0.30 (Runkel ratio), 0.57 ± 0.10 (Luce``s shape factor), 78.21 ± 10.34 (slenderness ratio) and 130.91 ± 33.77 × 10³ μm³ (solids factor). The AHP scoring rank indicated that the best individuals were 28.4.3.28 (Kiriwo Utara), 12.1.5.28 (North Kiriwo), 19.11.5.45 (Serisa Village), 3.8.4.9 (South Kiriwo), and 6.6.3.15 (South Kiriwo). Pearson correlation analysis showed significant correlations between the levels of fiber length with alpha-cellulose content (r = 0.39) as well as the fiber length with ethanol-toluene extractive contents (r = -0.41).
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Nurtjahjaningsih Ida Luh Gede,Rimbawanto Anto,Fauzi Mohammad Anis,Dormontt Eleanor E.,Lowe Andrew John,Hendrati Rina Laksmi,Baskorowati Liliana,Susanto Mudji,Sulistiadi Harry Budi Santoso,Mashudi,Pudj 한국산림과학회 2023 Forest Science And Technology Vol.19 No.1
Genetic relationships among teak (Tectona grandis) seed sources have been found to be low, thus genetic materials from other sources are required to maintain broad genetic diversity. This study here is therefore aimed to assess the potency of teak genetic structure in Southeast Sulawesi, Indonesia. Leaf materials were sampled from six populations: the villages of Angondara, Anduna (Konawe), Napabalano, Matakidi, Wakuru (Muna) and Wakonti (Buton). One population from Java Island (Kepek) was used as an outgroup. Genetic structures were assessed by using six microsatellite markers. The genetic diversity within populations was moderate (mean expected heterozygosity ¼ 0.544; mean allelic richness ¼ 3.752) as well as the genetic differentiation among the populations (mean FST ¼ 0.085). Dendrogram analysis revealed that the populations were separated into two clusters; the first is Kepek-Angondara, Anduna-Napabalano-Matakidi, Wakuru, and the second is Wakonti. AMOVA showed that the genetic variation was insignificant between regions, but significant among populations. The structural analysis demonstrates the division of populations into two lineages (Java and Southeast Sulawesi populations). Differences in genetic structures indicated that the teak from Southeast Sulawesi may have originated from other sources. Thus, those populations are promising for broadening the genetic base of commercial teak in Java.
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