P-Coumaric acid glucoside

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p-Coumaric acid glucoside
Skeletal formula of p-coumaric acid glucoside
trans glucoside
Names
IUPAC name
(2E)-3-[4-(β-D-Glucopyranosyloxy)phenyl]prop-2-enoic acid
Systematic IUPAC name
(2E)-3-(4-{[(2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}phenyl)prop-2-enoic acid
Other names
p-Coumaric acid 4-O-glucoside
Identifiers
3D model (JSmol)
ChemSpider
UNII
Properties
C15H18O8
Molar mass 326.301 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

p-Coumaric acid glucoside is a hydroxycinnamic acid, an organic compound found in commercial breads containing flaxseed.[1]

Biosynthesis

The glucoside is produced by enzymes which add a glucose unit from UDP-glucose to the parent p-coumaric acid. The cis and trans isomers have enzymes specific to each. Thus hydroxycinnamate 4-beta-glucosyltransferase characterised from tomato gives the trans form:[2]

  1. REDIRECT Template:Chemical reaction

However, cis-p-coumarate glucosyltransferase in Sphagnum fallax gives the cis equivalent:[3]

  1. REDIRECT Template:Chemical reaction

References

  1. ↑ Phenolic glucosides in bread containing flaxseed. C. Strandås, A. Kamal-Eldin, R. Andersson and P. Åman, Food Chemistry, Volume 110, Issue 4, 15 October 2008, Pages 997–999, doi:10.1016/j.foodchem.2008.02.088
  2. ↑ "Partial purifiction and some properties of a hydroxycinnamoyl glucosyltransferase from tomato fruits". Z. Naturforsch. C: Biosci. 35 (11–12): 967–972. 1980. doi:10.1515/znc-1980-11-1217. 
  3. ↑ "Isolation, purification and characterization of UDP-glucose: cis-p-coumaric acid-β-D-glucosyltransferase from Sphagnum fallax". Phytochemistry 46 (3): 449–453. 1997. doi:10.1016/S0031-9422(97)00337-3. 




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