ライム果皮油 化学特性,用途語,生産方法
定義
本品は、ライム Citrus aurantifolia の果皮から得られる精油である。
化粧品の成分用途
皮膚コンディショニング剤、香料
説明
Refer to LIME JUICE, DEHYDRATED.
化学的特性
Cold-pressed lime oils are produced by two different mechanical processes:
The whole fruits are chopped and the resulting oil–juice emulsion is subsequently centrifuged to yield the oil of the so-called type-A quality.
Alternatively, the oil of the so-called type-B quality is obtained by rasping
and/or squeezing the peels of the fruits as described on p. 195. During
type-A process, the liberated oil comes into contact with the highly acidic
juice, which may cause some changes in the chemical composition.Thus, the
sensory properties (“juicy”) of type-A oils are closer to those of distilled oils.
Pressed lime oils are yellow to greenish-yellow to green liquids with a
strong, characteristic odor, reminiscent of lemon.
d
2020 0.875–0.884/0.880–0.888; n
20D 1.482–1.486/1.484-1.488; α
20D +35 ° to +41 °/(not def.); carbonyl value 16-31/18-35, corresponding to a
calculated content of citral of 4.5–8.5%/5–9.5%; evaporation residue:
10-14.5%/13-19%; CD value ≥18.2/≥23.6 (data for Mexican oils of type A/type B).
d
2020 0.861–0.879; n
20D 1.476–1.486; α
20D +38 ° to +53 °; solubility: 1 vol in
≤3 vol 95% ethanol; evaporation residue: 5–12%; CD value ≥0.24 (data for
cold-pressed Persian lime oils).
The composition and uses of pressed lime oil are similar
to those of pressed lemon oil. As in lemon oil, the main constituents are
terpene hydrocarbons such as limonene, β-pinene and γ-terpinene. Generally,
neral (1–2.5%) and geranial (2–3.7%) are present in a somewhat higher
concentration. The same is true for furocoumarins; therefore, the quantities
of cold-pressed lime oil, which may be used in perfume compositions, are
limited. Lime oils of type A are mainly used to create juicy lime notes in
soft drinks; oils of type B are mainly used for producing fresh citric notes in
perfume compositions.
天然物の起源
Found in the peel of the fruit Citrus aurantifolia Swingle, formerly classified as Citrus medica L., var acida Brandis
使用
lime oil (Citrus acida, Citrus aurantifolia) has similar properties and uses as lemon oil. Lime oil is extracted from lime skin by cold pressure or distillation.
製造方法
By expression from the fresh peel of the fruit.
精油の成分
The main constituents of the oil are d-limonene, α-pinene, dipentene, C8, C9, and C10 aldehydes and
citral. The oils are rectified under vacuum to remove terpenes in order to improve solubility and permit use for flavoring carbonated
beverages.
安全性プロファイル
A skin irritant.
Questionable carcinogen with experimental
tumorigenic data. Mutation data reported.
When heated to decomposition it emits
acrid smoke and irritating fumes.
ライム果皮油 上流と下流の製品情報
原材料
準備製品