Stereochemical configuration and provitamin A activity. 6. Some cis-trans isomers of gamma -carotene

Deuel, H.J., J.; Hendrick, C.; Straub, E.; Sandoval, A.; Pinckard, J.H.; Zechmeister, L.

Archives of Biochemistry 14: 97-103


ISSN/ISBN: 0096-9621
Accession: 013837390

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In biological tests, all-trans- gamma -carotene, isolated from the ripe berries of Pyracantha angustifolia, was found to have 26 per cent. of the activity of beta -carotene. Neo- gamma -carotene P from the same source had 19 per cent., and the mixed neo- gamma carotenes obtained by refluxing gamma -carotene had 16 per cent. of the activity of beta -carotene. T. Moore.