. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UTILIZATION OF WASTE SEED FROM THE TOMATO. if Table V.—Expeller tests of various lots of tomato seed dried in rotary and tray driers. Kind of seed. Weight of product (pounds). Net results (per cent). Seed pressed. Oil ob- tained. Foots. Oil. Oil and foots. Rotary drier: £0 20 8 15 Trace. Trace. Trace. Little. 16 14 14 Tray drier: The yield of oil ob- tained from the several lots of seed varies con- siderably, but it is noted that
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. UTILIZATION OF WASTE SEED FROM THE TOMATO. if Table V.—Expeller tests of various lots of tomato seed dried in rotary and tray driers. Kind of seed. Weight of product (pounds). Net results (per cent). Seed pressed. Oil ob- tained. Foots. Oil. Oil and foots. Rotary drier: £0 20 8 15 Trace. Trace. Trace. Little. 16 14 14 Tray drier: The yield of oil ob- tained from the several lots of seed varies con- siderably, but it is noted that neither fermenta- tion nor heating of the seed previous to drying had any material effect in decreasing the yield of oil. Neither can it be concluded from the results obtained that the seed dried in the tray drier produced a higher yield of oil than that dried in the rotary drier. The apparently higher yields are explained by the fact that before the tray-dried seed was run through, the expeller had been operated for several hours, thus causing a higher temperature, due to the heating of the barrel. Furthermore, the adjustments neces- sary for the efficient operation of the expeller with this particular material had been perfected when the tray-dried seeds were passed through. A yield of about 17 per cent of oil can therefore be ex- pected from tomato seed by means of a perfectly adjusted expeller operating at its greatest efficiency. Fig. 10.—A commercial oil Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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