The plant carotenoid biosynthetic pathway to cyclic carotenes proceeds via carotene precursors in cis configuration. Involvement of individual isomers was elucidated by genetic complementation of ...

Synthetic phylloquinone was resolved into cis and trans isomers by thin-layer chromatography. The two isomers had identical ultraviolet spectra characteristic of vitamin K$_{1}$ and were ...

β-Carotene is generally regarded as the most commercially important and widely utilized carotenoid. It is used as a food coloring agent, an antioxidant, and an important and safe provitamin A source.

Recently, researchers led by Prof. HUANG Qing from Institute of Intelligent Machines, Hefei Institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) suggested a new method to ...

Both oleic acid and elaidic acid are 18-carbon fatty acids with a single double bond. However, oleic acid has a cis double bond (hydrogen atoms are on the same side of the bond), which causes a bend ...