The juniper berries (the fruits of Juniperus communis, L.) are comminuted, and the alcohol is poured over them.
Patchouli extract.[15]—Patchouli leaves 1 lb., best quality of alcohol 5 pints.
Bring the pulverized leaves into a bottle and add the alcohol. The tincture from patchouli leaves being dark-green is not suitable for the preparation of Extraits, since white substances are colored grass-green by it; only traces of the tincture may be used for the purpose of giving the Extrait patchouli a greenish shade of color. The tincture may, however, be utilized for milled patchouli soaps.
From many of the above-mentioned perfume-substances, which serve for the preparation of tinctures and are not entirely soluble in alcohol, but leave a residue after extraction, a second infusion may be made. Musk, castor, and the resins dissolve completely, there remaining behind only the impurities and any mineral constituents present which possess no aroma. But all residues from woods, fruits, etc., are suitable for a second extraction, most of the tinctures thus obtained being quite aromatic, and, as will be seen later on in giving receipts, can be very advantageously utilized. For the second extraction less alcohol has to be taken than for the first.
Since many perfumers consider it of greater advantage and more suitable to first dissolve the volatile oils used for the Extraits d'Odeurs, and to prepare a tincture in this manner, several receipts for the purpose are given below. In the receipts for perfumery given in the next following sections, the volatile oils are specified as such, and not as tinctures, because the Extraits d'Odeurs containing evidently much non-saturated alcohol, the volatile oils will in time completely dissolve in them. An exception to this rule might be ylang-ylang oil and perhaps orris-root oil. Ylang-ylang oil is soluble with difficulty, even in very strong alcohol, and if directly used for the Extrait, the latter remains turbid for weeks, and frequently, especially in winter, does not become clear, notwithstanding repeated filtering. However, by preparing in good time an ylang-ylang tincture this evil is avoided.
Almond-oil (bitter) tincture.—Bitter almond oil 2¾ drachms, alcohol[16] 1 quart.
Balm-oil tincture.—Balm oil 5½ drachms, alcohol 1 quart.
Basil-oil tincture.—Basil oil 14 drachms, alcohol 1 quart.
Bergamot-oil tincture.—Bergamot oil 3½ ozs., alcohol 4 quarts.
Canango-oil tincture.—Canango oil (Java), 1¾ ozs., alcohol 1 quart.