On natural colouring matters related to vitamins: Carotenes and flavines
✍ Scribed by Kuhn, R.
- Book ID
- 102886156
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1933
- Weight
- 558 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0368-4075
No coin nor oath required. For personal study only.
✦ Synopsis
At tltc rcqucst of Prof. It. I~obitison, to whom I i i t n grciitly intlcbtcd for his I;ititl invitntiou, I propose to to vitntiiins, iiiiiiicly, tlic ciirotctics :inti tltc fliivincs. s p i k iibot1t ccrtiiiti 11iit11rilI coloiiritig ninttcrs rclatcd I . CAROTENES AND CAROTENOIDS l!lic coniinon pcciiliarity of constitution, wlticli dctcriiiiiics tlic colour of ciirotcnoids, is tlic rcgulnr scqucncc of singly and doubly bountl ciirbon atonis i n opcn chain. Ilydrocarbons of tltis kititl (polyciics) were nt first prcparctl by inc :itid A. l'iiiterstciii~ i t i tlic Inborntory C, yciirs ngo. Tlic invcst ig;it,ion of tltc c:irotcnc pigmcnts, wltosc cltcniicnl nature wns at tltiit time coiiiplctcly unknown, hiis since m:idc cotisidcrablc progress, to wliicli importcult contri1)atioas ltiivc bccn tiinclc IJY Prof. L. %cclitucistcr iind by Prof. 1' . Ihrrcr :itid their ppils. Tiicse rcsciirclies IJcciiiuc of spcciiil iniportiincc wltcn Prof. 3-1. v. 15uler cstiiblisltctl titiit ciirotciic promotes growth in riits receiving ii tlict dcficictit in vitiitnin-d. T. Jloorc has shown titiit ciirotciiu is couvcrtcd into vitnniin-A in tlic nnitnnl's body.
l'hc iiivcstigiitioits of It. Willstiittcr l i i i d s l ~o ~r n that carotctic,:! t.lic coloiiring Iliiittcr of carrots, i i t d l y c o l ~c ~i ~~ t h t of tlic toniiito, iirc LytlrociirlJons with 40 c;irb011 ntoiiis. The fortnnl:o corrcspontl to C.,,lfGO' In ridditioii thc hyclrosyI-coiit;iiiiiiig sontliopltylls siicli as the luteid of cgg-yolk C!401~lG,02, wliicli is widely distributed in pliiiits,G :ind tlic fucosiintliinc6 of l)rowii nlg:u C,l& I,,O, also contain '10 ciirl)on iitoiiis. In recent yciirs tho