




UTILIZATION OF WASTE TOMATO SEEDS AND SKINS. 11 
quent salting and pressing, a soap of good texture with excellent 
lathering qualities was produced. If combined with oils rich in 
palmitin or stearin, satisfactory toilet soap doubtless could be pre- 
pared. Owing to the present threatened shortage of oils for the 
manufacture of soaps and glycerine the utilization of tomato-seed 
oil as a soap stock asserts itself. 
Experiments to determine the drying properties of the oil showed 
that 16 days were required to form a soft, sticky film. The nature 
of the film as well as the time of drying could in all probability be 
improved and hastened by the addition of siccatives or driers to the 
oil. It appears, therefore, that the oil possesses a certain value as 
a paint or varnish oul. 
The value of the oil in commerce would necessarily depend upon 
the particular use to which it could be applied and to the demand 
in general for fatty oils. From the results of the investigation, it 
appears that it should prove a valuable addition to the edible or 
condimental oils now in use. Likewise it should find an important 
place among the much-needed soap oils of commerce. 
TOMATO-SEED MEAL. 
UTILIZATION FOR STOCK FEEDING. 
The residue remaining after extracting the oil from the seeds 
constitutes the meal. The utilization of this meal as stock feed is 
suggested. In order to ascertain the approximate composition of 
the meal, a careful analysis was made. The results are shown in 
Table IV, together with analyses of some commercial stock feeds 
as given by Henry and Morrison (7, p. 634-636). 
TasLE 1V.—Composition of tomaio-seed meal as compared with various commer- 
cial stock feeds. 
Constituents (per cent). 


Feeding stuff. Nitrogen- ae 
Moisture.| Ash. Protein. free Fiber. ae 
extract. extract. 
Momato-seeg mealeye. j=... secs ko ose oe 7.15 4.64 37.0 29.10 AM Un Ui lant ge 
C@ottonseedemeales = pees sce acces ok 7.8 6.6 39.8 2724 10.1 8.3 
Sunflowenseedd(prime)is ese 22 5. e225. 10.0 4.2 34.8 21.8 10.9 18.3 
Sesame-olicalke ye se eee ie ee 9.8 10.7 37.5 2k 6.3 14.0 
TERN U TT aio, OREO AS AAs SENS keel MP ee Sea 10. 4 4.3 16.8 35.0 24.0 9.5 
Riapelseed Cakes nice a ees. osetia de soe 10.0 7.9 31.2 30.0 1S 9.6 
Linseed meal (new process)........-.----- 9.6 5.6 36.9 36.3 8.7 2.9 

In moisture and ash content, the tomato-seed meal compares favor- 
ably with the other feed stuffs. In protein content, it ranks with sun- 
flower seedcake, cottonseed meal, sesame-oil cake, rape seedcake, and 
linseed meal, being considerably higher than palm-nut cake and some- 






