Trifolin is a chemical compound. It is the

kaempferol Kaempferol (3,4′,5,7-tetrahydroxyflavone) is a natural flavonol, a type of flavonoid, found in a variety of plants and plant-derived foods including kale, beans, tea, spinach, and broccoli. It is also found in propolis extracts. Kaempferol i ...

3-galactoside. It can be found in ''

Camptotheca acuminata ''Camptotheca acuminata'' is a species of tree in the '' Camptotheca'' genus that is native to north Vietnam and southern China. It is also cultivated in the southern United States. A eudicot, it is a flowering deciduous tree with light gray b ...

'', in '' Euphorbia condylocarpa'' or in '' Consolida oliveriana''.

Kaempferol 3-O-galactosyltransferase In enzymology, a kaempferol 3-O-galactosyltransferase () is an enzyme that catalyzes the chemical reaction :UDP-galactose + kaempferol \rightleftharpoons UDP + kaempferol 3-O-beta-D-galactoside Thus, the two substrates of this enzyme are UDP-g ...

is an enzyme that catalyzes the chemical reaction:

UDP-galactose Uridine diphosphate galactose (Uridine diphosphate, UDP-galactose) is an intermediate in the production of polysaccharides. It is important in nucleotide sugars metabolism, and is the substrate for the transferase B4GALT5. Sugar metabolism Urid ...

+ kaempferol → UDP + kaempferol 3-O-beta-D-galactoside (trifolin). It can also be found in seedlings of ''

Vigna mungo The black gram or urad bean (''Vigna mungo'') is a bean grown in South Asia. Like its relative the mung bean, it has been reclassified from the genus ''Phaseolus'' to '' Vigna''. The product sold as black gram is usually the whole urad bean, wh ...

''.

References

Kaempferol glycosides Flavonoid galactosides {{Aromatic-stub