Ambergris - Ryuzenkou

Japanese: 竜涎香 - りゅうぜんこう
Ambergris - Ryuzenkou
Also known as ambergris. A gray or brown waxy mass that forms in the intestines of sperm whales, containing the mouthparts of squids that it has eaten, it is considered to be a kind of pathological stone caused by these creatures. It is hardly soluble in water, but is soluble in alcohol, and when dried and soaked in alcohol, it has a musk-like scent and has been prized since ancient times as a fragrance. The aromatic component is ambreine C 3 (/0)H 5 2 O, which also contains aldehydes and ketones. Since the ban on whaling, production has dropped sharply, and in recent years synthetic ambreine oxide has been used.
→ Related topics Fragrances | Sperm whale

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:
アンバーグリスとも。マッコウクジラの腸内に生ずる灰色ないし褐色の蝋状塊で,捕食したイカの口器などが含まれるため,これらに原因する一種の病的結石に近いものとされている。水に難溶だがアルコールに溶け,乾燥後アルコールに浸けたものは麝香(じゃこう)に似たかおりをもち古来香料として珍重。香成分はアンブレインC3(/0)H52Oで,他にアルデヒド,ケトンなどが含まれる。捕鯨の禁止以降生産量は激減し,近年では合成アンブレイン酸化物が用いられる。
→関連項目香料|マッコウクジラ

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