196 



PR—W fit ^V CD M f- i- - ^£- i: Wi X 



The following figure was traced in the same manner as figure i , 



Fig. 2. 



^ 



^ f/foaousaAf. yjcoooo Jf. y/ffoca ^ Y/ffpc M 



/ 



y- 



Minutes 



From the results, I can say that there is a clear distinction between the coagula- 

 tions by acid and b)- enz}'m, because this power does not increase by rising tempera- 

 ture as the enzymic action. At the same time, I perceived of that acetic acid has 

 not any accelerating power on enz\-mic action. 



CONCLUSIONS. 



1) A niucin coagulating enzym or mucinase, is found in the tubers of yam and 

 it was distinguished from ch\'mase. (The milk coagulating enz)-m.) 



2) The action of mucinase is accelerated by the presence of calcium chloride, 

 the influence of which is perceived in i/iooDOO normal concentration, a distinct in- 

 crease is observable in i/iooo normal concentration. This phenomena was distin- 

 guished from coagulating power of calcium chloride. 



3) There is a clear distinction between the coagulations by acid and b}' enzym, 

 and acetic acid has no accelerating power on enzymic action. 



Agnciiliural Chemical Laboratory^ 



ToJiokii IjHpcrial University ■, 

 Sapporo Japan, 



