Một dự án của Lê Mai A Lê Mai project · go to lemai.com.vn

Blackcurrant bud

Lý chua đen (nụ)

Ribes nigrum

Cassis, Cassis bud

Grossulariaceae · Nụ hoa · Flower buds · Steam-distilled (essential oil) or solvent-extracted (absolute)

Botanical illustration of Ribes nigrum; flower buds used to extract Blackcurrant bud essential oil
Blackcurrant bud essential oil, extracted from the flower buds of Ribes nigrum. Botanical illustration, Lê Mai Library.

Safety

Skin sensitization if oxidized

Oxidation products of δ-3-carene may sensitize skin. Avoid old or oxidized essential oils and absolutes.

Store in dark, sealed, refrigerated container. Add an antioxidant to formulations.

No specific contraindications in available data.

Likely not hazardous in pregnancy based on data for the major monoterpenes.


Usage guidelines

Storage
Dark, sealed, refrigerated; add antioxidant
Oxidation warning
Oxidized δ-3-carene causes sensitization

Chemistry

Volatile constituents
δ-3-Carene15.0 – 35.0 %
β-Pinene0.2 – 24.0 %
β-Phellandrene1.6 – 11.0 %
(+)-Limonene0.8 – 10.0 %
Terpinolene0 – 9.0 %
α-Pinene4.0 – 6.0 %
γ-Terpinene0 – 1.5 %
Ocimene0 – 1.5 %
p-Cymene0.7 – 1.4 %

Botanical source

Ribes nigrum is a small shrub, native to central and eastern Europe. The flower buds carry a sharp, catty scent, at once berry-like and leafy.

Steam-distilled essential oil from the buds is rare; solvent-extracted absolute is more common. The absolute has a different constituent profile, richer in β-caryophyllene and terpinolene.

Unusual among absolutes, blackcurrant bud absolute is monoterpene-rich, while most absolutes lean toward heavier molecules.


Notes

One of the most distinctive notes in modern perfumery. 'Cassis' appears in many contemporary fragrances for its ability to suggest fresh berries and wet leaves.