NICOTINIC ACID (NIACIN) 



per 100 g. A breakfast-cup, made with a teaspoonful of such an 

 extract may supply up to lo mg. of nicotinic acid, that is, a day's 

 requirement. The nicotinic acid content of corned beef was corre- 

 spondingly low, values ranging from 0-85 to 3-3 mg. per 100 g. being 

 obtained, compared with values of 4-5 to 8-5 mg. per 100 g. for fresh 

 beef. On an average, four-fifths of the original content was lost in 

 the pickling process by extraction, but hardly any by destruction, 

 even when nitrite was used. 



References to Section 6 



1. A. L. Bacharach, Nutr. Abs., 1940-41, 10, 459. 



2. R. W. Mc Vicar and G. H. Berryman, /. Nutrition, 1942, 24, 235. 



3. S. Josem, Anal. Assoc. Quim. Argentina, 1944, 32, 185. 



4. K. Mather and E. C. Barton-Wright, Nature, 1946, 157, 109. 



5. M. Swaminathan, Indian J. Med. Res., 1941, 29, 325. 



6. W. R. Aykroyd and M. Swaminathan, ibid., 1940, 27, 666. 



7. P. B. Pearson and A. L. Darnell, /. Nutrition, 1946, 31, 51. 



8. J. M. Lawrence, B. L. Herrington and L. A. Maynard, ibid., 1946, 



32, 73. 



9. R. A. Sullivan, E. Bloom and J. Jarmol, ibid., 1943, 25, 463. 



10. W. J. Dann and P. Handler, ibid., 1942, 24, 153. 



11. M. L. Khorana, M. L. Sarma and K. V. Giri, Indian J. Med. Res., 



1942 30, 315. 



12. B. de M. Braganea, Ann. Biochem. Exp. Med., 1944, 4, 41. 



13. J. F. Klocke, T. Porter, P. I. Tack, E. Laffler, N. S. Henry and 



R. Nitchals, Food Res., 1946, 11, 179. 



14. E. E. Rice, E. J. Strandine, E. M. Squires and B. Lyddon, Arch. 



Biochem., 1946, 10, 251. 



15. W. A. Krehl, J. de la Huerga, C. A. Elvehjem and E. B. Hart, 



/. Biol. Chem., 1940, 166, 53. 



16. J. Robinson, N. Levitas, F. Rosen and W. A. Perlzweig, ibid., 



1947. 170, 653. 



17. H. Fink and F. Just, Biochem. Z., 1940, 303, 404. 



18. M. Swaminathan, Indian J. Med. Res., 1942, 30, 403. 



19. R. G. Booth and E. C. Barton- Wright, Lancet, 1944, 1, 565. 



20. F. W. Norris, /. Inst. Brew., 1945, 51, 177. 



21. E. B. Hughes and F. L. Parkinson, Analyst, 1945, 70, 86. 



22. E. B. Hughes and R. F. Smith, /. Soc. Chem. Ind., 1946, 284. 



23. L. J. Teply, W. A. Krehl and C. A. Elvehjem, Arch. Biochem., 



1945. 6, 139. 



24. G. Kitzes, H. A. Schuette and C. A. Elvehjem, /. Nutrition, 1943. 



26, 241. 



25. W. C. Russell, M. W. Taylor and J. F. Benk, ibid., 1943, 25, 275 ; 



E. Gleim, M. Albury, J. R. McCartney, K. Visnyei and F. Fenton, 

 Food Res., 1946, 11, 461 ; F. Fenton, E. Gleim, M. Albury, 

 J. R. McCartney and K. Visnyei, ibid., 468. 



26. M. Swaminathan, Indian J. Med. Res., 1941. 29, 83. 



236 



