MAPLE SUGAR. 



43 



Table XXIX. — Samples of maple products with a total ash content of 0.77 per cent or 



less. 



Serial 

 No. 



Total 

 ash. 



Insoluble 

 ash. 



Winton 



lead 

 number. 



Malic 

 acid 

 value. 



Serial 

 No. 



Total 

 ash. 



Insoluble 

 ash. 



Winton 



lead 

 number. 



Malic 

 acid 

 value. 



6680 

 8365 

 8354 

 8349 

 8351 



Per cent. 

 0.68 



.77 

 .77 

 .77 

 .76 



Per cent. 

 0.26 

 .23 

 .23 

 .22 

 .23 



2.22 

 1.96 

 2.13 

 1.86 

 1.85 



0.66 

 .61 

 1.15 



.92 



.78 



7743 

 P) 

 P) 



( 2 ) 

 ( 2 ) 



Per cent. 

 0.76 



.77 

 .77 

 .76 



.77 



Per cent. 

 0.45 

 .22 

 .22 

 .25 

 .24 



1.86 

 2.04 

 2.42 



1.87 

 1.86 



0.75 

 .62 

 .61 

 .62 



.60 



i Taken from experimental work on change in color from sap to sugar sirup. 

 2 Taken from experimental work on resugaring. 



Thus, in the examination of 844 samples, it is noted that a total 

 ash content of 0.68 per cent has been found in one case only, and 

 0.76 per cent in three cases only; all other samples give 0.77 per cent 

 or over. In these four cases, all other figures are within those 

 found in normal products, namely, Winton lead number 1.85 or 

 over, insoluble ash 0.23 or over, and malic acid 0.59 or over. It 

 seems then that percentages of ash lower than 0.77 per cent are 

 abnormal figures and do not necessarily indicate a mixture with 

 other sirup, especially cane-sugar sirups. 



The insoluble ash analysis is of equal importance with that of the 

 total ash. Among the sap sirups the lowest insoluble ash content 

 was found to be 0.23 per cent, with an average of 0.37 per cent and 

 an extreme of 1.01 per cent. Three samples of sugar sirups had an 

 insoluble ash content below 0.23 per cent, but the average was 0.36 

 per cent and the extreme 1 per cent, practically the same as in the 

 case of sap sirup. In the experimental work about five additional 

 samples with an insoluble ash content of 0.22 per cent were found. 

 The results on these eight samples appear in Table XXX. 



Table XXX. — Samples of maple products with an insoluble ash content below 0.23 per 



cent. 



Serial 

 No. 



Total 

 ash. 



Insoluble 

 ash. 



Winton 



lead 

 number. 



Malic 

 acid 

 value. 



Serial 

 No. 



Total 

 ash. 



Insoluble 

 ash. 



Winton 



lead 

 number. 



Malic 



acid 

 value. 



8349 

 8344 

 8330 

 P) 



Per cent. 

 0.77 



.78 

 .81 

 .77 



Per cent. 



0.22 



.21 



.22 



.22 



1.86 

 1.85 

 2.01 

 2.04 



0.92 

 .59 



.77 

 .62 



P) 

 0) 

 P) 

 P) 



Per cent. 



0.77 



.81 



.88 

 .85 



Per cent. 



0.22 



.22 



.22 



.22 



2.42 

 1.96 

 2.20 

 1.96 



0.61 



.60 

 .66 



.69 



1 Taken from experimental work on change in color from sap to sugar sirup. 



All have a total ash content of 0.77 per cent or higher, a Winton 

 lead number of 1.85 or higher, and a malic acid value of 0.59 or 

 higher. With the possible exception of No. 8344, these samples are 

 abnormal in their insoluble ash content but normal in the other 

 figures. Finding only 3 samples out of 844 with an insoluble ash 



