288 



The Philippine Journal of Science 



Three thousand three hundred thirty-five kilograms of molas- 

 ses were placed in this vat, and the volume was increased to 

 14,000 liters by the addition of warm condenser water. Steam 

 was passed through the coil, until the temperature of the ferment 

 reached 70° C. Then cooling water having a temperature of 28° 

 was passed through the coil. Because of the inadequate size of 

 the coil, these operations were extended over a period of more 

 than forty hours. The same proportion of concentrated sul- 

 phuric acid (2 grams per liter of ferment) was added, but instead 

 of one equivalent of ammonium sulphate, two were added (0.4 

 gram per liter of ferment), or double the amount used in the 

 preceding experiment was used to increase the rate of fermen- 

 tation. One hundred fifty liters of inoculating solution were 

 then added, and the fermentation was allowed to proceed. 



The molasses employed was different from that used in all of 

 the previous work described in this article, as it had been diluted 

 to facilitate its removal from the containing tanks. 



Table XVI. 



-Data on molasses used in fermentation experiment tabulated 

 in Tables XVIII to XXIV. 



Table. 



Molasses. 



Dry substance in 

 molasses. 



Sugar as 

 glucose in 

 dry sub- 

 stance. 



Glucose 

 intro- 

 duced. 



1 Liters. 



XVIII - - 2,600 



XX - - -| 2,181 



XXII - 2,600 



XXIV 2,700 



Kilos. 

 3,335 

 3.032 

 3,335 

 3.676 



Per cent. 

 71.0 

 72.6 

 71.0 

 71.0 



Kilos. 



2,201 

 2,369 

 2,610 



Per cent. 

 78.0 

 79.8 

 78.1 

 78.0 



Kilos. 



1,848 

 1.756 

 1.850 

 2.033 



Table XVII. — Data on ferment, results of which are recorded in Table XVIII. 



Water 

 Molasses 



Inoculating solution 

 Total initial volume 

 Final volume 



Liters. 



11,600 



2,500 



150 



14,250 



14,000 



Note. — Sulphuric acid, 2 grams per liter ; ammonium sulphate, 0.4 gram per liter ; initial 

 brix, 16.5. 



The yield in Table XVIII is very flattering indeed, and when 

 compared with some of the results obtained in the local distil- 

 leries, the differences are striking. 



A second control test was run (Table XIX) . 



