Determination of stilbenes in hop pellets from different cultivars

J Agric Food Chem. 2005 May 18;53(10):4202-6. doi: 10.1021/jf050222m.

Abstract

About 30% of the polyphenols in wort and beer derive from hop, but little is yet known about their nutritional impact. The recent discovery of trans-resveratrol and piceid isomers in hop opens new doors to understanding beer health benefits. In the present work, resveratrol was quantified by HPLC-APCI-MS/MS in pellets from 9 different cultivars. Concentrations ranging from 4 to 9 mg/kg trans-piceid, from 2 to 6 mg/kg cis-piceid, and up to 1 mg/kg trans-resveratrol were detected. As previously shown for total polyphenols and flavonoids, the lower the alpha-acid content, the higher the total stilbene content.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromatography, High Pressure Liquid
  • Flavonoids / analysis
  • Glucosides / analysis
  • Humulus / chemistry*
  • Phenols / analysis
  • Polyphenols
  • Resveratrol
  • Species Specificity
  • Stilbenes / analysis*

Substances

  • Flavonoids
  • Glucosides
  • Phenols
  • Polyphenols
  • Stilbenes
  • Resveratrol
  • polydatin