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Table 1 Qualitative phytochemical screening of different extracts from Vanda roxburghii

From: Vanda roxburghii chloroform extract as a potential source of polyphenols with antioxidant and cholinesterase inhibitory activities: identification of a strong phenolic antioxidant

 

PEF

CLF

EAF

AQF

Tannins

-

-

-

++

Flavonoids

+

+++

++

+

Phenolic compounds

+

+++

++

+

Alkaloids

-

-

-

+

Saponins

-

-

-

++

Phytosterols

++

+

-

-

  1. Here, + = Present in mild amount, ++ = Present in moderate amount, +++ = Present in large amount, − = Absence
  2. PEF petroleum ether fraction, CLF chloroform fraction, EAF ethylacetate fraction, AQF aqueous fraction