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synonyms, source, constituents, constituents, tests, uses
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PERUVIAN BALSAM
SYNONYMS
Balsam Peru Indian balsam Black balsam China oil Honduras balsam Surinam balsam
SOURCE
Balsam Peru is obtained from Toluifer
pereiare (Klotzsch) Baill. (Myroxylon pereiare
Klotzsch) belonging to family: Leguminosae.
GEOGRAPHICAL SOURCE
Central America in the forests of San Salvado.
PREPARATION
Peruvian Balsam is a pathological product and is
obtained usually by inflicting injury to the trees.
It is prepared by beating the stems of the trees with
mallet.
After a week the injured areas of the stem are
scorched so as to separate the bark from the stem
and after a similar duration the bark is peeled off
completely.
The desired balsam starts exuding freely from all the
exposed surfaces, which are then covered carefully
with cloth or rags to absorb the exuding balsam.
The cloth or rags that are completely soaked with the
balsam is then removed and boiled with water in a
large vessel slowly.
Thus, the balsam gets separated and settles at the
bottom of the vessel.
The supernatant layer of water is removed by
decantation and the residual balsam is dried and
packed in the containers.
CHARACTERISTIC FEATURES
It is a dark brown, viscid liquid having a pleasant
aromatic odour.
It has a peculiar warm bitter taste and persistent
aftertaste which resembles like vanilla.
The Balsam Peru is transparent in thin films.
It does not harden on being exposed to
atmosphere.
It is brittle when cold.
It is almost insoluble in water and petroleum ether
but soluble in ethanol, chloroform and glacial acetic
acid.
CHEMICAL CONSTITUENTS Peruvian balsam contains free benzoic and
cinnamic acids (12-15%); benzyl (40%); esters of these acids (5.2-13.4% cinnamein); and volatile oil (1.5-3%).
The fragrant volatile oil contains toluene, styrol, benzoic and cinnamic acids.
The resins esters (30-38%) are chiefly composed of peruresinotannol cinnamate and benzoate, vanillin, free cinnamic acid and peruviol (or nerolidol).
USES
• Stimulant, expectorant, parasiticide.
• Used in scabies and skin diseases;.
• It is a good antiseptic, expectorant and a stimulant to the
heart, increasing blood pressure; its action resembles
benzoic acid.
• Given internally, it lessens mucous secretions, and is of
value in leucorrhoea and chronic bronchitis, and asthma.
• It is also used in soap manufacturing, for its fragrance, and
because it makes a soft creamy lather, useful for chapped
hands.
• Balsam of Peru can be applied alone or as an ointment
made by melting it with an equal weight of tallow.