387 



TABLE lila. 

 Influence of asparagine, glutamic acid and tyrosine on the destruction of glucose 



by alkali. 



NO. 



Added 



XJ '^ TO 



I z 



Polarisation in 



grades Ventzke Colour of 

 (2 dm tube) |the liquid 

 At After ' after ± 



begin- ± 3'/2 43 hours 

 ning hours 



40 cm3 of a 

 1 I sol. containing 



id. 



+ 11,3 



-K i + 10,5 

 o I 



B 



+ 10,3 



I + 10,2 



o 

 in 



o 



•a 

 <u 

 ■*^ 



Q 



+ 9,6 



+ 9,8 



_\ It n \ colour- 

 -^^^>^ less 



+ 8,0 



pale 

 yellow 



+ 6,3 



+ 5,2 



yellow 



brown- 

 yellow 



+ 4,4 



+ 5,0 



+ 10,3 



+ 9,8 



+ 9,7 



+ 6,3 2) 



brown 



brown 

 yellow 



yellow 



+ 5,9 1 yellow 



+ 4,4 brown 



TABLE illö. 

 Influence of tyrosine on the destruction of glucose by alkali. 



N». 



Added 



■♦" in -a 

 u H. OS 2 



E E E- 



v5 " ^ o 

 2 o. 



Polarisation in ' 

 grades Ventzke ! 



(2 dm tube) 

 ~ AT ^After 

 begin- +5 

 ning I hours 



Colour 

 after + 

 24 hours 



1) This solution was boiled for a moment and afterwards cooled till the tempe- 

 rature of the room was reached. 

 ^) All the glutamic acid is dissolved. 



