110 



FRANCIS E. LLOYD 



of syneresis, and betrayed nothing different from the tannin- 

 masses of a non-seeded fruit when just arrived at the point of 

 non-astringency. 



The region b was quite free of coloured tannin-masses, but 

 was also non-astringent. The tannin-masses were in a similar 

 condition to those of the uncoloured ones in region a, showing 

 incipient syneresis. The absence of astringency was determined 

 by tasting (by two persons) and by the tests fully described by 

 myself elsewhere.^ 



The regions c and c were slightly astringent but the more so 

 the nearer the limits between region c and region d. The tannin- 



Fig. L 



masses were in an early stage of coagulation. The tannin could 

 diffuse slowly out of the X-cellulose and precipitation membranes 

 consequently formed, but equally slowly. The power of hydrata- 

 tion was still sufficient to enable the now jelly-like X-cellulose to 

 burst the cell wall in many instances, and the usual precipitation 

 membranes would then be formed. Under such conditions as- 



^ Lloyd, F. E. The behavior of tannin in persimmons, with some notes on 

 ripening. Plant World 14: 1-14, 1911. 



The tannin-colloid complexes in the fruit of the persimmon. Diospyros, 

 Biochem. Bull. 1: 7-41, 1911. 



Ueber den Zusammenhang, u. s. w. Zeitschr. f. Chem. u. Ind. d. Koll. 9: 

 65-73, 1911. 



