Article
Materials Science, Paper & Wood
Masendra, Brandon Aristo Verick Purba, Ganis Lukmandaru
Summary: This study found significant differences in antioxidant activity between the outer and inner bark of Swietenia macrophylla, with the outer bark showing higher levels of total phenolic and flavonoid content as well as stronger antioxidant activity. GC-MS analysis revealed varying compositions of fatty acids, alcohols, and phenolic compounds in the inner and outer bark. A strong correlation was demonstrated between total phenolic content and antioxidant activity.
Article
Forestry
Yuka Furusawa, Tatsuya Ashitani
Summary: This study investigated the mechanism of Uradome in bamboo shoot cultivation, revealing that differences in cellulose and lignin depositions have significant effects on Uradome sites. The results provide a scientific basis for empirically conducted bamboo shoot cultivation management.
JOURNAL OF WOOD SCIENCE
(2021)
Article
Forestry
Yuka Furusawa, Hitoshi Nakamura, Tatsuya Ashitani
Summary: The research aimed to determine if the egumi taste of moso-bamboo shoots varied by production area, using chemical analysis and taste sensors. It was found that oxalic acid may be the main component responsible for the egumi taste, with variations in taste noted depending on the origin of the bamboo shoots.
JOURNAL OF WOOD SCIENCE
(2021)
Correction
Forestry
Yuka Furusawa, Tatsuya Ashitani
JOURNAL OF WOOD SCIENCE
(2021)
Article
Materials Science, Paper & Wood
Greitta Kusuma Dewi, Ragil Widyorini, Ganis Lukmandaru
Summary: This research investigates the effect of maltodextrin/ADP ratios and pressing temperatures on particleboard properties. The results show that an increased ADP ratio in maltodextrin and an increased pressing temperature can improve the performance and water resistance of particleboard.
Article
Materials Science, Paper & Wood
Manami Satoh, Norihisa Kusumoto, Naoyuki Matsui, Rei Makino, Koh Hashida, Daisuke Arai, Yoshiaki Iiduka, Tatsuya Ashitani
Summary: In this study, the antitermitic and antifungal activities of linalool and linalool oxide were evaluated, showing different effectiveness against Reticulitermes speratus and fungi. The results indicated that the stereostructures of linalool oxides played a significant role in their activities, with (2R,5R)-trans-linalool oxide exhibiting the strongest antitermitic activity. Additionally, (S)-linalool showed significantly stronger antifungal activity compared to racemic and (R)-linalool.
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
(2022)
Article
Zoology
Tungga Dewi, Muhammad Ali Imron, Ganis Lukmandaru, Katherine Hedger, Marco Campera, K. A. Nekaris
Summary: The study confirmed the consumption of plant exudates by Javan slow lorises in a lowland tropical forest, revealing significant differences in nutritional and plant secondary metabolite contents. This highlights the importance of exudates in their diet.
Article
Materials Science, Paper & Wood
Fais Rahman, Ganis Lukmandaru
Summary: This study focused on the descriptive analysis of extractive content in different parts of teak wood, including stem, bark, branch, and twig. Results indicated that 8-year-old trees had higher methanol extractive content compared to 6-year-old trees, while the branch and twig parts showed higher concentrations of extractive content. Additionally, phenolic concentrations were found to be higher in the branch and twig parts compared to the main stem.
Article
Materials Science, Paper & Wood
Rizki Arisandi, Sri Nugroho Marsoem, Ganis Lukmandaru, Johanes Pramana Gentur Sutapa
Summary: This study aims to investigate the sugar components that are important for heartwood formation in young Swietania mahagoni. After 4-5 years of heartwood formation, the content of monosaccharides and alditols doubled, while the content of major monosaccharides and sucrose decreased from sapwood to heartwood. Sucrose, represented as the main sugar, played a key role in heartwood formation.
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
(2022)
Article
Forestry
Yuka Furusawa, Hisayoshi Kofujita, Tatsuya Ashitani
Summary: The results showed that uradome tips had weaker egumi taste than bamboo shoots, but stronger umami taste and richness that remained after swallowing. Uradome tips contained more free amino acids and eight essential amino acids, which make them a potential food source.
JOURNAL OF WOOD SCIENCE
(2022)
Article
Agronomy
Sophie Manson, Marco Campera, Katherine Hedger, Nabil Ahmad, Esther Adinda, Vincent Nijman, Budiadi Budiadi, Muhammad Ali Imron, Ganis Lukmandaru, K. A. I. Nekaris
Summary: This study assessed the effectiveness of a biopesticide on the presence of coffee berry borer in small-holder coffee home gardens in West Java, Indonesia. The results showed that the presence of the pest significantly decreased, with a negative relationship between distance to natural forest and pest presence, and a positive relationship between shade cover and pest presence. Furthermore, farmers perceived the biopesticide to be more effective than conventional pesticides, highlighting its potential.
Article
Forestry
Fanny Hidayati, Ganis Lukmandaru, Tomy Listyanto, Denny Irawati, Rini Pujiarti, Sugi Purwanta
Summary: This study investigates the wood properties of superior teak in Indonesia, specifically focusing on older trees. The research finds that the superior clone of teak has lower heartwood percentage, brighter and lower redness color of wood, lower basic density, and lower mechanical properties compared to other seed sources. However, there are no significant differences in physical properties, MOR, and MOE among seed sources. Only compressive strength shows a significant difference. Additionally, the study shows that air-dry density can be used to predict the mechanical properties of teak wood.
JOURNAL OF THE INDIAN ACADEMY OF WOOD SCIENCE
(2022)
Article
Forestry
Rizki Arisandi, Sri Nugroho Marsoem, Johanes Pramana Gentur Sutapa, Ganis Lukmandaru
Summary: This study investigated the time and age at which heartwood formation begins in Swietenia mahogani trees, as well as the influence of age and diameter on heartwood formation. Results showed that heartwood formation starts at the age of four and can be found in up to 65% of the tree height. The analysis revealed that heartwood proportion is primarily determined by diameter rather than age, suggesting that selecting trees with larger diameters in tree breeding programs can produce high-quality wood.
SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE
(2023)