Pilot plant desolventization of fine cottonseed meal

Autor: Graci, A. V., Gardner, H. K., Cucullu, A. F., Crovetto, A. J., Spadaro, J. J., Knoepfler, N. B.
Zdroj: Journal of the American Oil Chemists' Society; February 1952, Vol. 29 Issue: 2 p41-43, 3p
Abstrakt: The continuous desolventization of fine cotton-seed meal has been successfully accomplished in a modified pilot-plant meal dryer of the screw-conveyor type under controlled conditions. The work should also have application in commercial solvent-extraction where a general fines problem (1) exists.Free gossypol content has been reduced as much as 69% during the desolventization operation without appreciably affecting the protein solubility of the meal.A meal in granular form can be obtained, provided the feed material has certain physical characteristics. This granulation, or essentially pelleting, effect should have application particularly in nutritional work where the feeding of meal in pellet form of various sizes is required. It is believed that a number of conditions contributed to the granulation. The most important was probably the high density of the material which was fed in a compressed or extruded form. It is likely that the fineness of the material, the moisture content, and the solvent content contributed to this consolidation during desolventization, but the quantitative effect of these variables has not been determined. It is thought that any material that can be made to hold together during the initial part of the desolventization will tend to produce a granulated product at the end of the drying period. The continuous desolventization of fine cotton-seed meal has been successfully accomplished in a modified pilot-plant meal dryer of the screw-conveyor type under controlled conditions. The work should also have application in commercial solvent-extraction where a general fines problem (1) exists. Free gossypol content has been reduced as much as 69% during the desolventization operation without appreciably affecting the protein solubility of the meal. A meal in granular form can be obtained, provided the feed material has certain physical characteristics. This granulation, or essentially pelleting, effect should have application particularly in nutritional work where the feeding of meal in pellet form of various sizes is required. It is believed that a number of conditions contributed to the granulation. The most important was probably the high density of the material which was fed in a compressed or extruded form. It is likely that the fineness of the material, the moisture content, and the solvent content contributed to this consolidation during desolventization, but the quantitative effect of these variables has not been determined. It is thought that any material that can be made to hold together during the initial part of the desolventization will tend to produce a granulated product at the end of the drying period.
Databáze: Supplemental Index
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