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Table 1 Phytochemical screening of semi-purified PEMM and comparison to crude MEMM

From: Antinociception of petroleum ether fraction derived from crude methanol extract of Melastoma malabathricum leaves and its possible mechanisms of action in animal models

Class of Compounds

Samples

MEMMa

PEMM

Flavonoids

+++

+

Triterpenes

++

++

Tannins

++

+

Saponins

++

+

Steroids

+++

+++

Alkaloid

-

-

  1. For flavonoids, tannins, triterpene and steroids - + : weak colour; ++ : mild colour; +++ : strong colour
  2. For saponins −+: 1 – 2 cm froth; ++: 2 – 3 cm froth; +++: > 3 cm froth
  3. For alkaloids: − +: negligible amount of precipitate; ++: weak precipitate; +++: strong precipitate
  4. aAdapted from report made by Mamat et al. [31]