Results 61 to 70 of about 3,875 (178)
Plant part substitution in Litsea Chinensis for medicinal use: A comparative phytochemical approach
Ancient Science of Life, 2017 Background: Medasakha (Litsea chinensis) is a medium sized tree, heartwood of which is extensively used in Ayurveda for the treatment of various diseases.
Bhavana Srivastava +4 more
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The quality comparison of particleboards produced from heartwood and sapwood of european larch
Maderas: Ciencia y Tecnología, 2019 In this paper, the impacts of heartwood and sapwood usage on the physical, mechanical, and surface properties and formaldehyde emission of particleboard are investigated. European Larch (Larix decidua) trees are chosen as a raw material.
Selahattin Bardak +2 more
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Chemistry of Heartwood Formation
Mokuzai Gakkaishi, 2012 樹木が10年程の齢に達すると，幹や枝などにおいてその中心部から心材が形成される。心材の特性が色調・におい・耐久性など木材の諸性質を左右するといった木材利用上の興味に加え，樹木が心材を形成する意義の理解ならびに心材形成の機構の解明といった植物基礎科学的な興味が，長い間研究者を心材研究・心材形成研究へと向かわせてきた。心材形成は生物学的・化学的・物理学的変化を伴う複雑な樹木生理現象である。中でも化学的な変化となる，心材に特有な物質すなわち心材成分の新生・堆積は，これら化合物自体が色・におい・対生物活性を持つことが多いため，直接的に心材特性の発現に結び付けられ得る，心材形成時の最も顕著な変化現象と言えよう。本総説では心材形成について，主に「心材成分の堆積」に着眼して生理学的見地，生化学的見地，組織（化 ...
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Origin and characterisation of the extractable colour of oak heartwood used for ageing spirits
Journal of Wood Science, 2020 In this study, investigation is focused on the soluble part of oak heartwood colour, with the objective of defining its impact on the colour of spirits after a barrel ageing.
Nicolas Vivas +4 more
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NATURAL DURABILITY AND PHENOLIC CONTENT IN DRIED SCOTS PINE HEARTWOOD
BioResources, 2010 The durability of Scots pine heartwood has previously been shown to be affected by the industrial drying process of sawn lumber. The durability of heartwood from boards dried at temperatures between 20°C-110°C was studied by measuring the mass loss in a ...
Margot Sehlstedt-Persson, Olov Karlsson
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Further tests for termite resistance of Finnish pine heartwood.
Silva Fennica, 1986 The natural resistance of Finnish-grown L. heartwood to termites was tested in Zambia in graveyard conditions. The heartwood exhibited some natural resistance but durability was, however, far from practical immunity.
Löyttyniemi, Kari, Uusvaara, Olli
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Antioxidant Activity of Caesalpinia sappan Heartwood
Biological and Pharmaceutical Bulletin, 2003 Antioxidant activity of Caesalpinia sappan heartwood was studied both by in vitro and in vivo models. The ethyl acetate, methanol and water extracts exhibited strong antioxidant activity as evidenced by the low IC50 values in both 1,1-diphenyl-2-picryl hydrazyl (DPPH) and nitric oxide methods.
Badami, Shrishailappa +4 more
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Coffee and Cocoa Research Journal, 2018 Shade-trees with energy use in coffee plantations are an important alternative to increase profitability in groforestry systems. The aim of this study was to investigate gross calorific value (GCV) of 15 shade-tree species in coffee plantations in Costa ...
Roger Moya +2 more
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, 1981 Department of Chemistry, University of Rajasthan, Jaipur-302 004 Manuscript received 5 September 1980, revised 13 March 1981, accepted 9 June 1981 Crystalline Components of the Stem Heartwood of Randia dumatorium and the Roots Heartwood of Kigelia ...
KRISHNA C. JOSHI +2 more
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Indonesian Journal of Innovation and Applied SciencesEthiopia's rapid expansion of urbanization, industrialization, modernization, and population growth has led to an insistently increase in the demand for wood for construction, furniture, and other end products.
Mahadi Mussa +2 more
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