J THE BLACK PErPEE. 751
I'hA S ° me ^ mes bleached by chlorine (Tlrandc, Diet, of Mat. Med)'Vliite St ° °*' l ,c PP er (both of nucleus and covering) is acrid and hot.])erica P e PP er is the fruit deprived of the external fleshy portion of the' v bitis[P' r ^ le S ra -b ls are larger than those of black pepper, spherical,o r bofl 1 ’ an< ^ srno °th, homy externally; internally they are farinaceous,l’ e pper°" m ^ 1C cen * ;rc - They are less acrid and pungent than black
lgoi i!i° S 1TI0N '—Oersted discovered piperin in pepper. InXvi o . ac ^ pepper was analyzed by Pelletier (Ann. de Chim. et de Phys.
white pepper was analyzed by Luca (Schwartze,
m - Tab.)
Slack pepper (Pelletier).
IfiSir 1 "'
i'PTin.
p Active.
ft" 1 -
(? ass,| rin.
•V Ial 'c acid.
P “tash ° aC ' d-
W 0( „> ’Calcareous, and magnesian salts.u y tibre.
White pepper (Luca).
Acrid resin. 16 - (50
Volatile oil ... 1'61
Extractive, gum, and salts .... 12-50
Starch . 18-50
Albumen . 250
Woody fibre . 29-00
Water and loss. 1929
White pepper. 100 00
t.
.. vjj i d 0ll nd no piperin in white pepper; but Poutet ( Journ . de Pharm.the i>ir> • )Sec l uen tly detected it. Probably, therefore, in Luca’s analysis,j 1 enu "'as contained in the resin.
a,| d ether pepper (resina piperis). —This is a very acrid substance, soluble in alcohol
Perties 0 p’ ut not so in the volatile oils. It possesses in high perfection the acrid pro-; * ni l in t w pepper - Dissolved in ether it was employed by Dr. Lucas, in intermittents,Dil. i o “oat of three cases with success (Dierbach , Neuest. Entd. in d. Mat. Med.2. pofo~’ 2 , 1837).
°^ 0Ur and 0i ^ pepper'{oleum piperis ).—When pure this is colourless; it has thec it ) j t aste °1 pepper. Its sp. gr. is 0-9932 (Luca). According to Meli (Dierbach ,8 orti e
of th^ > | >Ssesses .the same febrifuge properties as piperin, perhaps because it retainsIP’Ocra ] debiHt 161 P r * ,lc 'P^ e - D l )as been used in some forms of dyspepsia depending on
^tely exany Sl| bstance was discovered by Oersted in 1819, but was more accu-
a j° in cube'bs ^ Tdletier in 1821. It exists in black, white, and long pepper, and
^ Puse s at^foefv-* 11 ® ? u b s tance, the crystals being rhombic prisms, with inclined bases.
at er. Its h ls insoluble in cold water, and is only very slightly soluble in boilinga e( l to it p*- s °heut is alcohol; the solution throws down piperin when water isS fc lfor it. 1 ^ dissolves it, but not so readily as alcohol. Acetic acid likewise is
Mlovy. j t "b en pure, is white; but, as met with in commerce, it is usually straw-no anal aS at ^ rst supposed to bean alkali; but Pelletier has shewn that it pos-ing sulnh "uth vegetable alkalies, but that it is related to the resins. Withl°' V ! then UnC aC *^ 11 forms a blood-red liquid. Nitric acid colours it first greenish-w * s com. or ange, and afterwards red. The action of hydrochloric acid is similar,([y Perin ha 1 oP ^' 40 D 22 N> (X Hence its equivalent or atomic weight is 340.
)„ ,er bach Ar S 16611 rec °mmended and employed by Meli and several other physiciansci Vers - It is Entd ' in d ~ Mat . Med - B - '• S. 176,1828) as a febrifuge in intermittent
sjj^ona all- i- l ° Pe more certain and speedy, and also milder in its action, than the
rebate of „ a - le - S ' Moreover, we are told it might be procured at a cheaper rate thanhaveh 113 ^ tS ( ! ose ls a b°ut six or eight grains in powder or pills. SixtyHiu/Xnside 6611 taPen * n twenty-four hours, without causing any injurious effects.a * r e) pr 0D rS tW “ °. r *b ree scruples sufficient to cure an intermittent. Magendie ( For -poses it in blennorrhagia, instead of cubebs.