^-CAROTENE 



127 



Source 

 Citrullus vulgaris Schrad. 

 Citrus aurantiuni Risso. 



Citrus niadurensis Lour. 



Citrus poonensis hort. 

 Convallaria majalis 



Cucurbita maxima Duch. 



Diospyros costata 

 Gonocaryum pyriforme (skin) 



Mangifera indica 



Pirus aucuparia 

 Prunus armeniaca 

 Rosa canina 

 Rosa daniasccna 

 Rosa rubiginosa 

 Solanum Lycopersicuni 



Taxiis baccata 



b) Blossoms: 

 Acacia decurrens 

 Acacia discolour, Acacia 

 linifolia, Acacia longi folia 

 Calendula officinalis 



Caltha palustris 



Gazania rigens 



Genista tridentata 



Kerria japonica DC 



Laburnum anagyroides 

 Ranunculus 



Sarothamnus scoparius 

 Tragopogon pvatensis 



References 

 L. Zechmeister and P. Tuzson, Ber. 63 (1930) 2883. 

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

 221 (1934) 279. 



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

 221 (1934) 279. 



R. Yamamoto and S. Tin, Chem. Centr. 1934, I, 1660. 

 A. Winterstein and U. Ehrenberg, Z. physiol. Chem. 

 207 (1932) 31. 



H. Suginome and K. Ueno, Chem. Centr. ig3i, II, 

 2892. — L. Zechmeister and P. Tuzson, Ber. 67 

 (1934) 824. 



K. ScHON, Biochem. J. 29 (1935) 1779. 

 A. Winterstein, Z. physiol. Chem. 21 ^ (1933) 52; 

 2ig (1933) 249. 



R. Yamamoto, Y. Osima and T. Goma, Chem. Centr. 

 1933, I, 441. 



R. KuHN and E. Lederer, Ber. 64 (1931) 1354. 

 H. Brockmann, Z. physiol. Chem. 216 (1933) 45. 

 R. Kuhn and C. Grundmann, Ber. 6y (1934) 341. 

 R. Kuhn and C. Grundmann, Ber. 6y (1934) 341. 

 R. Kuhn and C. Grundmann, Ber. 67 (1934) 341. 

 R. Willstatter and H. H. Escher, Z. physiol. Chem. 

 6^(1910) 49. 

 R. Kuhn and H. Brockmann, Ber. 66 (1933) 834. 



J. M. Petrie, Biochem. J. 18 (1924) 957. 



do. 



L. Zechmeister and L. v. Cholnoky, Z. physiol. 

 Chem. 208 (1932) 29. 



P. Karrer and A. Notthafft, Helv. chim. Acta 1$ 

 (1932) 1195. 



K. Schon, Biochem. J. 32 (1938) 1566. — L. Zech- 

 meister and W. A. Schroeder, /. Am. Chem. Soc. 63 

 (1943) 1535. 



K. Schon and B. Mesquita, Biochem. J. 30 (1936) 

 1966. 



P. Karrer and E. Jucker, Helv. chim. Acta 29 (1946) 

 1539. 

 do. 



P. Karrer and A. Notthofft, Helv. chim. Acta 15 

 (1932) 1195. — P. Karrer, E. Jucker, J. Rutsch- 

 mann and K. Steinlin, Helv. chim. Acta 28 (1945) 

 1146. 



P. Karrer and E. Jucker, Helv. chim. Acta 27 (1944) 

 1585. 

 see Ranunculus . 



