LIGHT ABSORPTION CURVES OF SOME CAROTENOIDS 361 



t Iflr 

 3.7- 

 3.6 

 3.5 

 14 

 3.3 

 3.2 

 3.1 

 3.0 

 29 

 2.6- 

 2.7 

 2.6 

 2.5 

 2.U 

 2.3 

 2.2. 



Fig 



/cm 



• Isocarotene 



- Dihydro-fi-Carofene 



- Lycopene 

 ■fi- Carotene 

 •a-Carotene 



A ft A 



500 

 -^X in mil 



absorption of a-Carotene, /^-Carotene, Lycopene, Dihydro-^-carotene, and 

 Isocarotene in hexane 

 Helv. chim. Acta 23 (1940) 956 



