Encyclopedia of Essential Oils: The complete guide to the use of aromatic oils in aromatherapy, herbalism, health and well-being.. Julia Lawless

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Encyclopedia of Essential Oils: The complete guide to the use of aromatic oils in aromatherapy, herbalism, health and well-being. - Julia  Lawless

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CONSTITUENTS Disulphides, notably 2-butyl propenyl disulphide with monoterpenes, free ferulic acid, valeric, traces of vanillin, among others.

      SAFETY DATA Available information indicates the oil to be relatively non-toxic and non-irritant. However, it has the reputation for being the most adulterated ‘drug’ on the market. Before being sold, the oleoresin is often mixed with red clay or similar substitutes.

       AROMATHERAPY/HOME USE

      Respiratory System: ‘There is evidence that the volatile oil is expelled through the lungs, therefore it is excellent for asthma, bronchitis, whooping cough etc.’3

      Nervous system: Fatigue, nervous exhaustion and stress-related conditions.

      OTHER USES Now rarely used in pharmaceutical preparations; formerly used as a local stimulant for the mucous membranes. Occasionally used as a fixative and fragrance component in perfumes, especially rose bases and heavy oriental types. Employed in a wide variety of food categories, mainly condiments and sauces.

      B

       BALSAM, CANADIAN

      Abies balsamea

      FAMILY Pinaceae

      SYNONYMS A. balsamifera, Pinus balsamea, balsam fir, balsam tree, American silver fir, balm of Gilead fir, Canada turpentine (oil).

      GENERAL DESCRIPTION A tall, graceful evergreen tree up to 20 metres high, with a tapering trunk and numerous branches giving the tree an overall shape of a perfect cone. It forms blisters of oleoresin (the so-called ‘balsam’) on the trunk and branches, produced from special vesicles beneath the bark. The tree does not produce a ‘true’ balsam, since it does not contain benzoic or cinnamic acid in its esters; it is really an oleoresin, being a mixture of resin and essential oil.

      DISTRIBUTION Native to North America, particularly Quebec, Nova Scotia and Maine.

      OTHER SPECIES The hemlock spruce (Tsuga canadensis) also yields an exudation sold under the name of ‘Canada balsam’. There are also many other species of fir which produce oils from their needles – see entry on silver fir and Botanical Classification section. NB: Not to be confused with the genuine balsam of Gilead (Commiphora opabalsamum), of ancient repute.

      HERBAL/FOLK TRADITION The oleoresin is used extensively by the American Indians for ritual purposes and as an external treatment for burns, sores, cuts and to relieve heart and chest pains. It is also used internally for coughs.

      ACTIONS Antiseptic (genito-urinary, pulmonary), antitussive, astringent, cicatrisant, diuretic, expectorant, purgative, regulatory, sedative (nerve), tonic, vulnerary.

      EXTRACTION 1. The oleoresin is collected by punturing vesicles in the bark. 2. An essential oil is produced by steam distillation from the oleoresin, known as Canada balsam or Canada turpentine. (An essential oil is also produced by steam distillation from the leaf or needles, known as fir needle oil.)

      CHARACTERISTICS 1. The oleoresin is a thick pale yellow or green honeylike mass which dries to crystal clear varnish, with a fresh sweet balsamic, almost fruity odour. 2. A colourless mobile liquid with a sweet, soft-balsamic, pinelike scent. It blends well with pine, cedarwood, cypress, sandalwood, juniper, benzoin and other balsams.

      PRINCIPAL CONSTITUENTS Consists almost entirely of monoterpenes, pinene, phellandrene, esters and alcohols.

      SAFETY DATA Generally non-toxic, non-irritant, non-sensitizing. ‘In large doses it is purgative and may cause nausea.’4

       AROMATHERAPY/HOME USE

      Skin Care: Burns, cuts, haemorrhoids, wounds.

      Respiratory System: Asthma, bronchitis, catarrh, chronic coughs, sore throat.

      Genito-Urinary System: Cystitis, genito-urinary infections.

      Nervous System: Depression, nervous tension, stress-related conditions – described as ‘appeasing, sedative, elevating, grounding, opening’.5

      OTHER USES The oil from the oleoresin is used in certain ointments and creams as an antiseptic and treatment for haemorrhoids. Used in dentistry as an ingredient in root canal sealers. Also used as a fixative or fragrance component in soaps, detergents, cosmetics and perfurmes. There is some low-level use in food products, alcoholic and soft drinks. The oleoresin is used as a medium in microscopy and as a cement in glassware.

      Copaifera officinalis

      FAMILY Fabaceae (Leguminosae)

      SYNONYMS Copahu balsam, copaiba, copaiva, Jesuit’s balsam, Maracaibo balsam, para balsam.

      GENERAL DESCRIPTION Wild-growing tropical tree up to 18 metres high, with thick foliage and many branches. The natural oleoresin occurs as a physiological product from various Copaifera species. Not a ‘true’ balsam.

      DISTRIBUTION Native to north east and central South America. Mainly produced in Brazil; also Venezuela, Guyana, Surinam and Colombia.

      OTHER SPECIES Several Copaifera speices yield an oleoresin: the Venezuelan type ‘Maracaibo balsam’ has a low oil content, the Brazilian type ‘para balsam’ has a high oil content. See also Botanical Classification section.

      HERBAL/FOLK TRADITION Used for centuries in Europe in the treatment of chronic cystitis and bronchitis; also for treating piles, chronic diarrhoea and intestinal problems.

      ACTIONS Batericidal, balsamic, disinfectant, diuretic, expectorant, stimulant.

      EXTRACTION 1. The crude balsam is collected by drilling holes into the tree trunks; it is one of the most plentiful naturally occurring perfume materials. 2. An essential oil is obtained by dry distillation from the crude balsam. It is mainly the ‘para balsams’ with a high oil content (60–80 per cent), which are used for distillation.

      CHARACTERISTICS 1. The crude balsam is a viscous, yellowy-brown or greenish-grey liquid which hardens upon exposure to air with a mild, woody, slightly spicy odour. It blends well with styrax, amyris, lavandin, cedarwood, lavender, oakmoss, woods and spices. 2. The oil is a pale yellow or greenish mobile liquid with a mild, sweet, balsamic-peppery odour. It blends well with cananga, ylang ylang, vanilla, jasmine, violet and other florals.

      PRINCIPAL CONSTITUENTS Mainly caryophyllene.

      SAFETY DATA Relatively non-toxic,

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