CHEMICAL COMPOSITION OF AMERICAN GRAPES. 



17 



A high or low acid-sugar ratio itself carries no index of richness 

 or food quality. It is simply a statement of the balance between these 

 elements compared with each other and indicates agreeableness or 

 lack of agreeableness to the palate. A rich juice may be quite acid in 

 its fresh state, as for instance, Norton for northern Ohio, 1911, which 

 is indeed a rich juice but with an acid-sugar ratio of 1 to 17.8, entirely 

 too narrow for a potable juice in the fresh state. The indications 

 are that the amelioration of such a juice by proper factory technic is 

 possible. 



Table 3. — Comparison of total sugar and acid results for all named varieties analyzed 

 during 1908-1911 and 1913, with acid-sugar ratios. 



[Results stated in grams per 100 cc of expressed juice.] 



Variety. 



District. 



Num- 







ber of 



Sugar as 



Acid as 



sam- 



invert. 



tartaric. 



ples. 







1 



10.19 



0.911 



2 



17. SO 



.840 



3 



15.28 



1.344 



4 



19.02 



.854 



1 



16.02 



1.436 



1 



16.94 



1.436 



1 



16.68 



.821 



2 



20.51 



1.205 



7 



19.64 



1. 852 



2 



17.42 



1.770 



3 



18.34 



1.347 



1 



12.12 



1.159 



1 



18. 78 



1.114 



1 



13.91 



1.466 



2 



17.57 



1.011 



2 



20.47 



.632 



i 



18.67 



.822 



1 



18.71 



.676 



1 



13.64 



1.106 



1 



17.03 



.833 



1 



13.61 



.784 



4 



15. 56 



.884 



1 



14.90 



.540 



1 



14.60 



1.028 



1 



13.29 



1.654 



25 



20.45 



.775 



84 



18.05 



1.155 



7 



16.22 



i 1. 552 



84 



20.78 



1.071 



9 



18.76 



1.431 



28 



20.24 



.709 



1 



17.64 



.892 



25 



18.67 



1.270 



1 



16.23 



1.042 



1 



11.90 



.915 



1 



13.50 



1.043 



1 



14.96 



1.196 



3 



13.68 



1.285 



5 



19.28 



1.0S1 



13 



17.73 



1.6S6 



4 



18.69 



2.061 



3 



20.80 



1.918 



4 



19.03 



2.130 



5 



21.62 



1.173 



13 



20.43 



1.942 



3 



17.94 



1.732 



1 



16.02 



1. 088 



1 



12.76 



.870 



11 



17.40 



.466 



46 



15.74 



2.702 



30 



15.92 



3.804 



14 



16.01 



1 .744 



30 



18.51 



.757 



Acid- 

 sugar 

 ratio. 



Adirondac ..:... 

 Agawam 



Do 



Do 



Amber Queen... 



America 



Aminia 



Bacchus 



Do 



Do 



Do 



Barry 



Belle 



Big Extra 



Black Eagle 



Brighton 



Do 



Brilliant 



Brown 



Butler No. 1 



Campbell Early. 



Do 



Do 



Canada 



Carman 



Catawba 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Champion 



Chautauqua 



Clevener 



Do 



Clinton 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Cloeta 



Colerain 



Concord 



Do 



Do 



Do 



Do 



1910 

 1909 

 1910 

 1913 

 1910 

 1910 

 1910 

 1908 

 1909 

 1910 

 1911 

 1910 

 1910 

 1910 

 1910 

 1909 

 1910 

 1913 

 1910 

 1910 

 1909 

 1910 

 1913 

 1913 

 1910 

 1908 

 1909 

 1909 

 1910 

 1910 

 1911 

 1911 

 1913 

 1913 

 1910 

 1910 

 1910 

 1913 

 1908 

 1909 

 1909 

 1910 

 1910 

 1911 

 1913 

 1913 

 1910 

 1910 

 1908 

 1909 

 1909 

 1909 

 1910 



All northern 



do 



New York 



do 



do 



do 



do 



Northern Ohio.. 



All northern 



Northern Ohio . . 



All northern 



New York 



do 



do 



do 



Northern Ohio . . 



All northern 



New Jersey 



New York 



do 



Northern Ohio.. 



All northern 



New Jersey 



do 



New York 



Northern Ohio.. 



do 



Other northern.. 

 Northern Ohio . . 

 Other northern.. 

 Northern Ohio . . 

 Other northern.. 



New York 



New Jersey 



New York 



do 



do 



New Jersey 



Northern Ohio . . 



do 



Other northern.. 

 Northern Ohio.. 

 Other northern.. 

 Northern Ohio . . 



New York 



New Jersey 



New York 



do 



Northern Ohio . . 



....do 



Other northern.. 



Virginia 



Northern Ohio . . 



1:11.2 

 1:21.3 

 1:11.4 

 1:22.3 

 1:11.2 

 1:11.8 

 1:20.3 

 1:17.0 

 1:10.6 

 1: 9.8 

 1:13.6 

 1:10.5 

 1:16.9 

 1: 9.5 

 1:17.4 

 1:32.4 

 1:21.2 

 1:27.7 

 1:12.3 

 1:20.4 

 1:17.4 

 1:17.9 

 1:27.6 

 1:14.2 

 1: 8.0 

 1:26.4 

 1:15.6 

 1:10.4 

 1:19.4 

 1:13.1 

 1:28.6 

 1:19.8 

 1:14.7 

 1:15.6 

 1:13.0 

 1:12.9 

 1:12.5 

 1:10.6 

 1:17.8 

 1:10.5 

 1: 9.1 

 1:10.8 

 1: 8.9 

 1:18.4 

 1:10.5 

 1:10.4 

 1:14.7 

 1:14.7 

 1:37.3 

 1:22.4 

 1:19.8 

 1:21.5 

 1:24.4 



1 Acid average of 6 samples. 2 Acid average of 41 samples. 



3 Acid average of 29 samples. 



