UTILIZATION OF GP.APE POMACE AXD STEMS. 



21 



Tarle III. — Approximate raluea and rstimated gross returns ohtainaile from 

 the manufacture of rarious products from grape waste hij different methods. 



Material used and product obtained. 



Skins: 

 Jelly. 



Jelly residue . . . 

 Stems: 



Cream of tartar. 

 Seeds: 



Oil 



Meal 



Oil cake 



Tannin e.xtract. 



Quantities obtained. 



Approximate values. 



Solvent 

 method. 



Pressure 

 method. 



Glasses. 

 19, 800, 000 

 Tons. 

 1,435 



13.2 



132 



Glasses. 

 19,S0O,000 

 Tons. 

 1,435 



13.2 



89.3 



.526. 7 

 484 



Total gross returns . 



Solvent 

 method. 



.?2, 475, 000 



24,378 



8,560 



39,600 

 11,600 



Pressure 

 method. 



S2, 475, 000 

 24,378 

 8,560 

 30,362 



15, SOI 

 2, 904 



2,559,138 2,-557,005 



Process or product. 



Unit of 

 estimate. 



Cost per 

 unit. 



Total cost. 



Solvent 

 method. 



Pressure 

 method. 



Extracting cream of tartar (13.2 tons) from stems 



Pomace (4,400 tons), local price 



Drying and bagging pomace (4,400 tons) 



Hauling dried pomace (2,200 tons) 



Sparating seed (1,1(X» tons) from pomace 



Manufacturing jelly (1,650,000 dozen glasses) from the skins. 



Drjnng and grinding jelly residue (1,435 tons) 



Extracting oil from seeds (1,100 tons) 



Decorticating seeds (1,100 tons) 



Pressing oil from kernels (616 tons) 



Extracting tannin from hulls (484 tons) 



Ton... 

 ...do... 

 .-do... 

 ...do... 

 ...do... 

 Dozen. 

 Ton... 

 ...do... 

 ..do... 

 ...do... 

 ...do... 



S30.00 

 2.50 

 9.00 

 5.00 

 3.00 

 1.16 

 3.00 



10.00 

 4.00 



13.00 

 3.00 



S396 



11,000 



39, 600 



11,000 



3, .300 



1,914,000 



4,305 



11,000 



4,400 



S396 

 11,000 

 .39, 600 

 11,000 

 3,300 

 1,914,000 

 4,305 



4,400 

 8,008 

 1,452 



Total cost for manufacture . 

 Net profits 



1,999,001 

 560, 153 



1,997,461 

 5,59, 544 



Af^ainst the frross returns must be chnrfred the cost of makino; the 

 various products. In order to ascertain the costs involved in a 

 rational utilization of the waste, all successive operations involved 

 from the accumulation of the i^omace to the finished products are 

 included in the estimates. No charge is allowed for the cost of the 

 raw material, since there is no way to estimate what this should be 

 except as the value of the finished products is compared with the 

 cost of producing them. Table III shows the cost per ton and the 

 total cost of the various operations from the purchasing of the 

 pomace to the products resulting from the waste. It will be seen 

 that if the solvent method is employed the approximate total cost 

 will be $1,099,001, while by the pressure method the total cost is 

 $1,99T.4G1, making the appi'oxiniate net profits from the two methods 

 $5G0,153 and $559,544, respectively. 



In these calcidations it is assumed that the waste is utilized at 

 some central point and that all the products are manufactured from 

 the waste. Only in this way is a minimum expense involved, since 

 much of the necessary machinery can be utilized for the several op- 



