2. Copaiba
Synonyms Balsam copaiba;
Balsam capivi; Jesuit’s Balgar.
Biological Source Copaiba is
the oleoresin obtained from the South American species of Copaifera (Copaiba)
belonging to family: Leguminosae.
Preparation The oleoresin
is collected by incisions made on the trunk of various species of Copaifera
Linn., (a method similar to colophony described under Section 2.7).
Characteristic Features It
is a transparent, viscid to pale-yellow to brownish-yellow liquid. It has a
peculiar odour and bears a nauseating, bitter and acrid taste. Its acid number
in 28-95 and d 0.930-0.995. It is practically insoluble in water, but soluble
in benzene, chloroform, ether, oils, CS2, absolute ethanol,
petroleum ether and partly soluble in 95% ethanol. It is incompatible with
mineral acids, magnesia and water. Capaiba is found to contain a
volatile oil, resin acids (e.g., capaivic acid and illurinic
acid), besides a small quantity of a bilter principle and a
fluorescent substance.
The major constituents of the volatile
oil are cryophyllene, isocaryophyllene and that of the resin acid
is β-metacapaivic acid as given below:
Uses
1. It is used in varnishes.
2. It is also employed for
removing old oil varnish from oil paintings.
3. It is used in the manufacture of photographic paper.
Source:Pharmacognosy And Pharmacobiotechnology By Ashutosh Kar
3. It is used in the manufacture of photographic paper.
Source:Pharmacognosy And Pharmacobiotechnology By Ashutosh Kar
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