Sorghum; Its Culture and Manufacture Economically Considered as a Source of Sugar, Syrup, and Fodder

Sorghum; Its Culture and Manufacture Economically Considered as a Source of Sugar, Syrup, and Fodder

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 edition. Excerpt: ...No. 2, where a small amount of lime was added to the solution, the solution, at first alkaline, becomes, after about nine hours' boiling, slightly acid, and this acidity increases steadily to the end of the experiment, until, at the end of thirty-five hours' boiling, the amount of lime necessary to restore neutrality is twice as much as that originally added to the solution. After the solution had become distinctly acid, the inversion of the sugar became much more rapid. Also, during the earlier periods of this experiment the amount of glucose increases but slightly, although there is a gradual decrease of sucrose. This is doubtless due to the fact, that the action of the lime is mainly exerted in the destruction of glucose, as has been shown in my reports to be true in experiments iu sugar making from sorghum and maize juices. The practical point, however, to be observed is, that, so long as the solution remained distinctly alkaline, there was but very slight loss in sugar and slight increase in glucose, two desirable conditions in the economical production of sugar from sorghum. And so soon as this alkalinity was destroyed, through the formation of acid products during the boiling, the inversion of sugar became rapid, and the accumulation of glucose very marked. These results are, obviously, most undesirable in sugar making. The conclusion thus far would be, that the solution should, during boiling, be kept slightly alkaline. In the series of Experiments, No. 3, where a larger quantity of lime was added to the solution, its effect at the outset was to remove from tie solution as a precipitate about half of the sugar, and the remainder during eighteen hours of boiling was found to be unchanged in amount; on the other hand, the action of this...show more

Product details

  • Paperback | 184 pages
  • 189 x 246 x 10mm | 340g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236616154
  • 9781236616159