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Table 2 Qualitative detection and antimicrobial activity of Berberis aristata root bark

From: Scientific validation of the antimicrobial and antiproliferative potential of Berberis aristata DC root bark, its phytoconstituents and their biosafety

Phytoconstituents

Detected group

Stock solution (mg/mL)

Antimicrobial activity

Alkaloids

 

21.33

++e

Mayer’s reagent test

+

  

Hager’s reagent test

+

  

Wagner reagent test

+

  

Flavonoids

 

68.33

+++c

Shinoda test (magnesium turnings)

+b

  

Zinc-hydrochloride reduction test

+

  

Lead acetate test

+

  

Ferric chloride reagent test

−a

  

Saponins

 

NA

NA

Froth test

−

  

Tannins

 

73.5

−f

Ferric chloride reagent test

−

  

Lead acetate test

+

  

Cardiac glycosides

 

NA

NA

Keller–Killiani test

−

  

Terpenoids

   

Triterpenes (Salkowski’s test)

+

10

+d

Diterpenes (Copper acetate test)

+

87.42

+++c

Anthranol glycosides

 

ND

ND

Borntrager’s test

+

  

Phytosterols

 

NA

NA

Libermann Burchard’s test

−

  

Salkowski’s test

−

  

Coumarins

+

ND

ND

  1. NA, not applicable; ND, not done
  2. aAbsent
  3. bPresent
  4. cMost active
  5. dLeast active
  6. eActive
  7. fNot active