ラブダナム油 化学特性,用途語,生産方法
定義
本品は、Cistus labdaniferus から得られる樹脂である。
化粧品の成分用途
香料
説明
Refer to LABDANUM, ABSOLUTE.
化学的特性
Labdanum absolute is produced by extraction of the gum with alcohol (e.g.,
methanol or ethanol). The so-called colorless absolutes are obtained from absolutes
by extraction with, for example, hexane.
Steam distillation of the gum yields labdanum oil, which is a golden yellow, viscous
liquid that quickly turns dark brown on standing:
d
2525 0.905–0.993; n
20D 1.4920–1.5070; α
20D +0°15′to +7°, often difficult to determine
due to its dark color; solubility: 1 vol in 0.5 vol of 90% ethanol, solutions
frequently opalescent to turbid, paraffinsmay separate upon further dilution; acid
number: 18–86; ester number: 31–86.
Cistus oil and extracts are products with completely different sensory properties.
They are derived from the leaves and young twigs of C. ladanifer. Cistus oil
is obtained by steam distillation; solvent extraction yields cistus concrete. Cistus
oil, in contrast to labdanum oil, consists mainly of monoterpene hydrocarbons.
Cistus and labdanum products are produced in some Mediterranean countries
(Spain, France,Morocco), where the Cistus shrub grows abundantly.They are used
in perfumery, giving perfume compositions awarm, balsamic tonalitywith a touch
of ambergris. The typical odor originates from a number of compounds that are
formed by oxidative degradation of diterpenes with the labdane skeleton, which
are the main constituents of labdanum gum. The resinoids and
absolutes are excellent natural fixatives.
天然物の起源
Found in the gum of the shrub Cistus ladaniferus L
製造方法
By steam distillation of the crude gum
精油の成分
The main constituents of the oil include terpenes, benzaldehyde, acetophenone, a ketone with a peppermint
odor, acetic acid and eugenol.
ラブダナム油 上流と下流の製品情報
原材料
準備製品