798 



IX. THE VITAMIN E GROUP 



TABLE 1 

 Tocopherol (Vitamin E) Content of Some Vegetable Oils 



AND HyDROGENATED FaTS" 



Tocopherol content, mg. per 100 g. 



Oil Total b a y S 



Babassu, crude 3 — — — 



Carrot 162;500 — 



Castor 50 — — — 



Cacao butter 3-13 — — — 



Coconut 3;8.3 3.6 — 4.7" 



Corn 87-250;102 12.6 89.4 — 



-Cottonseed 83-110;86 41 36 9 



Linseed 113 — — — 



Okraseed, crude 74 31 43 — 



Olive 3-30 _ _ _ 



Palm 3-50;56 30 — 26" 



■^Peanut 22-59;34 13 14 7 



Pecan, refined 45;42 20 22 — 



Poppyseed, crude 44 — — — 



Rapeseed 55 — — — 



Rice bran 55-100;91 58 33 — 



Safflower, crude 80 — — — 



-Soybean 92-280;lG8 20 98 50 



Soybean phosphatide 200'^ — — — 



Sunflowerseed, crude 70 — — — 



Wheat germ U0-550;274 192 — — 



Hydrogenated Vegetable Shortenings 



Crisco 104.2 _ _ _ 



Margarine base stock 100.5 — — — 



Primex 98.4 _ _ _ 



Sweetex 101.0 — — — 



" Data adapted from W. Lange, ./. Am. Oil Chemists' Soc, 27, 414-422 (1950). 



* Values Tollowiiig semicolon are for the sample on which the results of fractionation 

 of tocopherol are l)ased. "^ Sum of 7- and 5-tocoi)herols. 



"^ J. L. Jensen, K. C. D. Hickman, and P. L. Harris, Froc. Soc. Exptl. Biol. Med., 54, 

 294-296 (1943). 



a-form as of the /3-l,ype, and only traces of 7-tocopherol.^^ There is some- 

 times as much 7- as a-tocopherol in cottonseed oil,^^ but usually there is 

 less, while the tocopherol in palm oil is largely, and in corn oil exclusively, 

 of the 7-type.^° On the other hand, lettuce oil contains only the a- variety. 

 5-Tocopherol is found in soybean oiP^ to the extent of 30% of the total 

 tocopherols ; there is also evidence that 5-tocopherol is present in cottonseed 

 and peanut oils. 



6' O. H. Emerson, J. Am. Chcm. Soc, 60, 1741-1742 (1938). 

 6» O. H. Emerson, G. A. Emerson, and H. M. Evans, Science, 89, 183 (1939). 

 *^ L. Weisler, C. D. Robeson, and J. G. Baxter, Ind. Enq. Chcm., Anal. Ed., 19, 900- 

 909 (1947). 



