Bulletin of the Botanical Department, Jamaica Volume 7

Bulletin of the Botanical Department, Jamaica Volume 7

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 edition. Excerpt: ...daily, or 26 barrels, of paddy rice, at a cost of about 2 cents per barrel, which is more than paid for by the offal. In cities steam power is used and the number of poundera greatly increased, but the process is practically unchanged. COMMERCIAL RICE MILLING. The usual process.--The processes of milling rice are quite complioated. The paddy is first screened to remove trash and foreign particles. The hulls, or chaff, are removed by rapidly revolving "milling stones" set about two-thirds of the length of a rice grain apart. The oduct goes over horizontal screens and blowers, which separate the light chaff and the whole and broken kernels. The grain is now of a mixed yellow and white color. To remove the outer skin the grain is put in huge mortars holding from 4 to 6 bushels each and pounded with pestles weighing 350 to 400 pounds. Strange to say, the heavy weight of the pestle breaks very little grain. When sufiiciently decorticated. the contents of the mortars, consisting now of flour, fine chaff, and clean rice of a dull, filmy, creamy color, are removed to the flour screens, where the flour is sifted out. From. thence the rice and fine chaff, go to the fine-chaff fan, where the fine chaff is blown out and mixed with the other flour. The rice flour, as we call it, or more properly " rice meal." as our English neighbours call it, is very valuable as stock feed, being rich in carbohydrates as well as albumiuoids. From the fine-chaff fan the rice goes to the cooling bins, rendered necessary by the heavy frictional process through which it has just passed. It is allowed to remain here for eight or nine hours, and then p'sses to the brush screens, whence the smallest rice and what little flour is left pass...show more

Product details

  • Paperback | 94 pages
  • 189 x 246 x 5mm | 181g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236978498
  • 9781236978493