CHAPTER XVI. 



Unorganised Ferments (Snzymes). 



Eead : — 



Green. Annals of Bot. Vol. vii., pp. 83—137. 



Diastase. 



LiNTNER and Dull. Ber. d. d. chem. Ges. xxvi. 

 (1893). 



Brown and Morris. Log. at. pp. 633 — 661. 



(References to other papers on diastase are included by 

 the authors of the above.) 



Invertase. 



O'Stjllivan and ToMPSON. J. C. S. Trans. LViii. 

 (1890.) 



Glycase. 



LiNTNER. Zeit. fur das ges. Brauwesen xv. (1892.) 



Unorganised ferments are soluble in water and precipi- 

 tated by alcohol which does not destroy their power, but 

 the latter is destroyed by heating above 80° C. An un- 

 organised ferment should therefore be extracted by cold 

 water, but this is not always possible, even when the 



