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Table 3 Extract yield and chemical profile of methanolic extracts of R. californica and U. californica

From: Antibacterial activity of native California medicinal plant extracts isolated from Rhamnus californica and Umbellularia californica

  Plants
  R. californica U. californica
  Leaves Leaves Bark
Extract Yield (% w/w) 13.9 28.9 5.75
Alkaloids + + +
Flavonoids + + +
Leucoanthocyanidins - + +
Cardenolides + + +
Tannins + + -
Saponins + + +
Steroids - - +
Quinones + - -
  1. +, present; −, absent