CAROTENOIDS CONTAINING HYDROXYL GROUPS 



XI 



Musa pavadisiaca 

 Prunus persica 

 Rosa rubiginosa 

 Wheat germ 



References 



H. V. LoESECKE, /. Am. Chem. Soc. 31 (1929) 2439. 

 G. Mackinney, Plant. Physiol. 12 (1937) 216. 

 R. KuHN and C. Grundmann, Ber. 6y (1934) 339. 

 B. Sullivan and C. H. Bailey, /. Am. Chem. Soc. 38 

 (1936) 383. 



c) Other vegetable and animal sources: 



Bombix mori 



Chicken fat 



Cladophora Sauteri 



Egg yolk (chicken) 



Feathers {Serinus canaria) 



Feathers (woodpecker) 

 Haemaiococcus pluvialis 

 Human fat 



Human liver 



Marsh soil 



Mycobacterium phlei 



Nitella opaca 



Oedogonium, 

 Peat 



Rana esculenta 



Rhodymenia palmata 



Serum (cattle) 



F. G. DiETEL, Kl. Wschr. 12 (1933) 601. — C. Rand. 



Biochem. Z. 281 (1935) 200. 



L. Zechmeister and P. Tuzson, Z. physiol. Chem. 



225 (1934) 189. 



I. M. Heilbron, E. G. Parry and R. F. Phipers, 



Biochem. J. 2g (1935) 1376. 



A. E. GiLLAM and I. M. Heilbron, Biochem. J. 2g 



(1935) 1064. 



H. Brockmann and O. Voelker, Z. physiol. Chem. 



224 (1934) 193. 

 do. 



J. TiscHER, Z. physiol. Chem. 250" (1937) 147. 



L. Zechmeister and P. Tuzson, Z. physiol. Chem. 



225 (1934) 189; 231 (1935) 259. 



L. Zechmeister and P. Tuzson, Z. physiol. Chem. 

 234 (1935) 241. — H. Willstaedt and T. Lindqvist, 

 Z. physiol. Chem. 240 (1936) 10. 



0. Baudisch and H. v. Euler, Arch. Chem. Mineral. 

 Geol. Ser. All, No. 21, Chem. Centr. J935, II, 1390. 

 M. A. Ingraham and H. Steenbock, Biochem. J. 2g 

 (1935) 2553. 



1. M. Heilbron, E. G. Parry and R. F. Phipers, 

 Biochem. J. 2g (1935) 1376. 



do. 



R. C. Johnson and R. Tiessen, Chem. Centr. ig34, I, 



2686. 



L. Zechmeister and P. Tuzson, Z. physiol. Chem. 



238 (1936) 197. 



I. M. Heilbron, E. G. Parry and A. F. Phipers, 



Biochem. J. 2g (1935) 1376. 



A. E. Gillam and M. S. El Ridi, Biochem. J. 2g (1935) 



2465. 



This summary of the occurrence of xanthophyll, though incomplete, indicates 

 the extraordinarily wide distribution of this phytoxanthin. 



Preparation^^^ 



6 kg of finely ground, dry stinging nettles are extracted with 80% methanol 

 in completely filled bottles. The extraction is then continued with peroxide-free 

 ether. The combined extracts are shaken with water, saponified with methanolic 

 References p. 214-217. 



