258 



VITAMINS 



13. Which vitamins are known to function as parts of enzyme systems? 



14. Account for the fact that pellagra is much more prevalent in the southern 

 states of America than elsewhere. 



15. Correct the following statement: If two samples of milk have the same amount 

 of color, they have the same vitamin A potency. 



16. Which vitamins contain N, S, P, Co? 



REFERENCES AND SUGGESTED READINGS 



Brink, N. G., Kuehl, F. A., Jr., and Folkers, Karl, "Vitamin B12: The Identification of 



Vitamin B12 as a Cyano-Cobalt Coordination Complex," Science, 112, 354 (1950). 

 Carter, H. E., Bhattacharyya, P. K., Weidman, K. R., and Fraenkel, G., "Chemical 



Studies on Vitamin Bt Isolation and Characterization as Carnitine," Arch. Biochem. 



and Biophys., 38, 405 (1952). 

 Consulich, D. B., Roth, B., Smith, J. B., Jr., Hultquist, M. E., and Parker, R. P., 



"Chemistry of Leucovorin," /. Am. Chem. Soc, 74, 3252 (1952). 

 Drummond, J. C, "The Nomenclature of the So-Called Accessory Food Factors 



(Vitamins)," Biochem. J., 14, 660 (1920). 

 Eddy, W. H., What Are the Vitamins? Reinhold Publishing Corp., New York, 



1941. 

 Eddy, W. H. and Dalldorf, G., The Avitaminoses, 2nd ed.. The Williams and Wilkins 



Company, Baltimore, 1941. 

 Eijkman, C, "An Experiment in Combatting Beri-Beri," Virchow's Archiv fur patho- 



logische Anatomic und Physiologic, 149, 187 (1897). 

 Follis, R. H., Jackson, D., Eliot, M. M., and Park, E. A., "Prevalence of Rickets in 



Children between Two and Fourteen Years of Age," Am. J. Diseases Children, 66, 



1 (1943). 

 Food and Nutrition Board, "Recommended Daily Dietary Allowances, Revised, 



1948," Nutrition Rev., 6, 319, (1948). 

 Funk, C, "Etiology of Deficiency Diseases — Beri-Beri, Polyneuritis in Birds, Epi- 

 demic Dropsy, Scurvy in Animals (Experimental), Infantile Scurvy, Ship Beri-Beri, 



Pellagra," J. State Med., 20, 341 (1912). 

 Gordon, E. S., Nutntional and Vitamin Therapy in General Practice, 3rd ed.. The 



Year Book Publishers, Inc., Chicago, 1947. 

 Gyorgy, P. (editor), Vitamin Methods, vols. 1 and 2, Academic Press, Inc., New 



York, 1951. 

 Harris, L. J., Vitamins and Vitamin Deficiencies, P. Blakiston's Son and Company, 



Philadelphia, 1938. 

 Harris, P. L., Quaife, M. L., and Swanson, J., "The Vitamin E Content of Foods," 



J. Nutiition, 40, 367 (1950). 

 Harris, R. S. and Thimann, K. V. (editors), Vitamins and Hormones, Advances in 



Research and Applications, vols. 1-9, Academic Press, Inc., New York, 1943-1951. 

 Hopkins, F. G., "The Analyst and the Medical Man," Analyst, 31, 385 (1906). 

 Kingsley, H. N. and Parsons, H. T., "The Availability of Vitamins from Yeast, IV," 



J. Nutrition, 34, 321 (1947). 

 Kogl, F. and Toennis, G., "Isolation of Crystalline Biotin from Egg Yolk," Z. Physiol. 



Chem., 242, 43 (1936). 

 Lewis, U. J., Register, U. D., Thompson, H. T., and Elvehjem, C. A., "Distribution of 



Vitamin B^ in Natural Materials," Proc. Soc. Exptl. Biol. Med., 72, 479 (1949). 

 Link, K. P., "The Anticoagulant from Spoiled Sweet Clover Hay," T/ie Harvey Lec- 

 ture Series, 39, 162 (1944). 

 Lunin, N., "Concerning the Significance of Inorganic Salts in Animal Nutrition," 



Z. Physiol. Chem., 5, 31 (1881). 



