Wednesday, April 25, 2012


  • Phytoalexins are antibiotics produced by plants when under attack by pathogens such as bacteria or fungi
  • Resveratrol is a phytoalexin produced naturally by several plants — including vines.
  • Resveratrol is found in the skin of red grapes.Malbec has a thick skin and contains much resveratrol.
  • Vine grapes grown in cooler climates have higher resveratrol levels than those from warmer climes 
  • The varieties with most resveratrol in the wine include malbec, petite sirah, st. laurent and pinot noir.
  • Phytoalexins tend to fall into several classes including terpenoids, glycosteroids and alkaloids
  • Phytoalexins produced in plants act as toxins to the attacking organism.

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