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Table 1 Phytochemical screening of successive ginger extracts

From: Zingiber officinale acts as a nutraceutical agent against liver fibrosis

Constituents Petroleum ether Chloroform Ethanol
Carbohydrate - - +++
Flavonoids - - ++++
Tannins - - ++++
Sterols - ++ -
Terpenes - ++ -
Alkaloids - - -
Oils ++ - -
  1. - = Not present.
  2. + = Present in low concentration.
  3. ++ = Present in moderately high concentration.
  4. +++ = Present in very high concentration.
  5. ++++ = Abundantly present.