CAROTENOIDS 



Fig. 4. — The absorption 2Q 

 spectrum of Lutein, 

 Zeaxanthin and 

 Cryptoxanthin. i^rom 24 

 Zscheile, F. P., White, 

 J. W., Beadle, 6. W., 

 and Roach, J. R. (1942) 

 Plant. Physiol.. 17, 20 

 331.) 



'^1 



420 440 460 480 



Wavelength (mpi) 



52X) 



Fig. 5. — The absorption 28 

 spectrum of Violaxan- 

 thin (from Karrer, P., 

 and Jucker, £. Helv. 

 Chlm. Acta, 26, 17.) 

 and Flavoxanthin. 

 (From Kuhn, R., and 

 Brockman, H. (1932) 20 

 Hoppe-Seyi. Z., 213, 

 192.) 



380 



400 



420 



440 460 480 

 Wavelength (mfi) 



500 



520 



18 



