The Chemical Constituents of Piper Methysticum: Or, The Chemical Constituents of the Active Principle of the Ava RootBall, Alice A.
Science
The Chemical Constituents of Piper Methysticum: Or, The Chemical Constituents of the Active Principle of the Ava Root
Ball, Alice A.
Kava plant
“Kava is at first stimulating, but the effect of an excess resembles
that of opium, producing a drowsy drunkenness, lasting for two hours.
The inebriate is usually peaceable, but sometimes is irritated by
noises, which is attributed by natives to the use of kava grown in
moist ground. The results of excess are skin disease, emaciation, and
general decrepitude. The peculiar whiteness of the skin caused by kava
drinking is said to be sought after in some islands as a sign that its
possessor is wealthy enough to devote his time to its acquirement.
“There is some misapprehension in regard to whether the liquid
undergoes fermentation before it is consumed, but it is positively
known that there can be no fermentation, for the liquor is drunk
immediately after the addition of water to the macerated root. Kava
that is prepared by chewing is said to be more palatable, which
is perhaps due to the conversion of the starch into a fermentable
substance by the ptyalin of the saliva.”[1]
[1]—By Walter Hough—Reprinted from Smithsonian Miscellaneous
Collections—No. 1472—August 1904. “Kava Drinking as Practised by the
Papuans and Polynesians.”
“In 1779 Captain King, R. N., who followed Captain Cook to the Islands,
describes the case of a priest as follows ‘a little old man of an
emaciated figure, his eyes exceedingly sore and red, and his body
covered with a white leprous scurf, the effects of an immoderate use
of ava.’ He also says, ‘The chiefs suffer dreadful effects from the
immoderate use of ava. Those who are most affected by it had their
bodies covered with a white scurf, their eyes red and inflamed, their
limbs emaciated, their whole frame trembling and accompanied with a
disability to raise the head.’”[2]
[2] “Leprosy Prize Essays,” 2nd series by Thompson and Cantile, 1897.
F. A. Griel, makes the following statement in a foot note. “The mixture
is a subnarcotic, and if drunk by European sailors produces highly
nauseous effects. If frequently taken a dry burning heat is produced
all over the body, the eyes become red, skin peels off in flakes
and then degenerates into leprous ulcers or the whole body becomes
emaciated and wastes away.”[3]
[3] Miquel, Systema Piperacearum.
Numerous attempts have been made to isolate the active chemical
constituent or constituents. As early as 1844 Morson discovered an
active principal _Kawine_. This is a greenish-yellow, strongly aromatic
and acrid resin. This was again studied by Cuzant in 1860.
Public-domain text, read in full here on John Shaqi.
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