NDLI: Physical and chemical characteristics of the blackened portion of Japanese persimmon

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Physical and chemical characteristics of the blackened portion of Japanese persimmon

Content Provider	Semantic Scholar
Author	Heartwood, Sapwood
Copyright Year	2004
Abstract	K e y words Japanese persimmon 9 Mechanical property 9 Decay resistance 9 Trace element 9 Boron E. Noda Graduate School of Agriculture, Kyoto University, Kyoto 606-8502. Japan T. Aoki Radioisotope Research Center, Kyoto University, Kyoto 686-8501. Japan K. Minato (~:~) Faculty of Agriculture, Kyoto Prefectural University, Sakyo-ku, Kyoto 606-8522, Japan Tel. +81-75-703-5646; Fax +81-75-7034646 e-mail: minato@kpu.ac.jp Part of this work was presented at the 50th Annual Meeting of the Japan Wood Research Society, Kyoto, April 2000 Introduction About 500 species of Diospyros grow in the tropical to temperate regions. Among them are many species of which the heartwood is black to dark-brown, black-spotted, or black-striped. ~ In particular, some Diospyros species in India, Southeast Asia, and tropical Africa usually have black heartwood. The heartwood of these species is called ebony; it is highly valued, and is used for furniture, carvings, musical instruments, etc. because of its high density, hardness, excellent durability, and ornamental value] The heartwood of Japanese persimmon (Diospyros kaki) does not usually blacken, although it can on rare occasions. The blackened portion of Japanese persimmon has been called "kurogaki"; it is also highly prized and is used for purposes similar to those of ebony. Neither the actual properties of kurogaki nor the mechanism of the blackening phenomenon has been fully clarified. Only the chemical structures of some extracts are known) In this study, we examined the physical, mechanical, and chemical characteristics of kurogaki and its resistance to biological attacks. Materials and methods
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://jwoodscience.springeropen.com/track/pdf/10.1007/BF00771376
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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