Am.  Jour.  Pharm 
June,  1878. 
Mate,  or  Paraguay  Tea. 
tained  fatty  matter,  chlorophyl,  resin,  tannin  and  caffeina.  A  portion 
of  the  residue  of  the  mate,  after  percolation  with  alcohol,  was  dried 
and  percolated  with  petroleum  benzin  ;  the  percolate  was  colorless, 
and  upon  evaporation  no  extract  whatever  was  obtained,  proving  that 
alcohol  of  sp.  grav.  '822  dissolves  all  the  constituents  of  mate  which 
are  soluble  in  petroleum  benzin.  Another  portion  of  the  residue  from 
percolation  with  alcohol  was  percolated  with  chloroform  ;  a  brownish- 
green  percolate  was  obtained,  which  upon  evaporation  yielded  a  small 
quantity  of  hard,  green,  wax-like  matter,  readily  fusible,  and  when 
burnt  giving  off  the  odor  of  caoutchouc. 
The  extract  yielded  to  alcohol  by  10  grams  of  mate  after  treatment 
with  petroleum  benzin  and  chloroform  as  in  Table  No.  II,  was  of  a 
soft  consistence,  greenish  brown  color  in  mass,  and  transparent  bright 
yellow  color  in  thin  layers,  the  odor  fragrant  and  very  agreeable,  the 
taste  bitter  and  acrid  ;  it  contains  resin  and  tannin,  but  no  caffeina. 
The  extract  obtained  by  alcohol  from  10  grams  of  mate  after  treat- 
ment with  boiling  water,  petroleum  benzin  and  chloroform,  as  in  Table 
No.  Ill,  was  of  a  dark  green,  almost  black,  color,  easily  powdered, 
yielding  a  pale  greyish-green  powder,  nearly  inodorous,  and  of  a  slight 
bitter  taste  ;  it  contained  tannin,  but  was  entirely  free  from  caffeina. 
Treatment  with  Dilute  Alcohol,  sp.  grav.  '941,  Table  No.  I. — 10  grams 
of  powdered  mate  were  exhausted  by  percolation  with  dilute  alcohol  and 
the  resulting  tincture  evaporated  to  dryness  on  a  water-bath.  The  extract 
obtained  was  of  a  brown  color,  readily  powdered,  yielding  a  light  yel- 
low powder,  of  slight  odor,  and  bitter,  astringent  taste  ;  it  contained 
resin,  caffeina  and  tannin. 
The  extract  yielded  to  dilute  alcohol  by  10  grams  of  mate  after 
treatment  as  in  Table  No.  II,  was  of  a  dark  brown  color,  readily  pow- 
dered, yielding  a  brownish-yellow  inodorous  powder,  of  slight  bitter, 
astringent  taste  ;  it  contained  tannin  and  gum,  but  no  caffeina. 
The  extract  obtained  by  dilute  alcohol  from  10  grams  of  mate  after 
treatment  as  in  Table  No.  Ill,  was  of  a  light  brown  color  in  mass,  dull 
yellow  when  powdered,  inodorous  and  almost  tasteless,  the  presence  of 
tannin  shown,  but  it  was  entirely  free  of  caffeina  and  resin. 
Tannin. — For  the  estimation  of  the  tannin  the  following  process  was 
employed  (for  additional  details  of  similar  process,  see  Proceedings  of 
the  American    Pharmaceutical   Association,    1876,   page   513,  and 
