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1 will form *Fut. Ind. Act.
*Fut. Ind. Pass.
*Fut. Ind. Act.
2 is governed *Past. Perf. Act.
*Pres. Ind. Pass.
*Pres. Ind. Act.
3 are *Pres. Ind. Pass.
*Pres. Perf. Act.
6.7 Give the Russian for
1 spongy structure
2 milling conditions
3 winter and spring wheat
4 indispensable for the production
5 hard wheat
6.8 Ask as many questions to the text, as possible. Work in pairs
6.9 Prove your friends that wheat flour is unique among cereal flours
7 Text 6 Cleaning Milling Operations
Most flour milling operations, apart from the grinding of wheat and mill
stocks, consist of making separations between particles of different types. In the
wheat cleaning operations that precede the milling process the straws, sand, foreign
seeds and other impurities are extracted: in the milling process itself the wheat is
broken down into bran on one hand and variously sized endosperm particles on the
other; the bran must be separated from the endosperm, and the endosperm particles
must themselves be classified according to their size. The objects of wheat
cleaning are to remove all impurities and foreign seeds from the wheat before it is
milled. A variety of different seeds and foreign bodies can be found in wheat.
Some of the impurities are toxic to the human body, others are less harmful but
may import a taint to the flour.
Loose impurities are extracted from raw by taking advantage of:
1. Difference of specific gravity
2. Difference of dimensions
3. Difference of behaviour in air currents
Separation by specific gravity
. This principle is used for separating
impurities, which have the specific gravity different from that of wheat. For
example, stones of the same size and shape as wheat. The removal of stones from
20
1 will form *Fut. Ind. Act. *Fut. Ind. Pass. *Fut. Ind. Act. 2 is governed *Past. Perf. Act. *Pres. Ind. Pass. *Pres. Ind. Act. 3 are *Pres. Ind. Pass. *Pres. Perf. Act. 6.7 Give the Russian for 1 spongy structure 2 milling conditions 3 winter and spring wheat 4 indispensable for the production 5 hard wheat 6.8 Ask as many questions to the text, as possible. Work in pairs 6.9 Prove your friends that wheat flour is unique among cereal flours 7 Text 6 Cleaning Milling Operations Most flour milling operations, apart from the grinding of wheat and mill stocks, consist of making separations between particles of different types. In the wheat cleaning operations that precede the milling process the straws, sand, foreign seeds and other impurities are extracted: in the milling process itself the wheat is broken down into bran on one hand and variously sized endosperm particles on the other; the bran must be separated from the endosperm, and the endosperm particles must themselves be classified according to their size. The objects of wheat cleaning are to remove all impurities and foreign seeds from the wheat before it is milled. A variety of different seeds and foreign bodies can be found in wheat. Some of the impurities are toxic to the human body, others are less harmful but may import a taint to the flour. Loose impurities are extracted from raw by taking advantage of: 1. Difference of specific gravity 2. Difference of dimensions 3. Difference of behaviour in air currents Separation by specific gravity. This principle is used for separating impurities, which have the specific gravity different from that of wheat. For example, stones of the same size and shape as wheat. The removal of stones from 20
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