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Table 2 Qualitative phytochemical results of Tenebroideae beetles T.molitor and U. dermestoides

From: Comparative study of composition, antioxidant and antimicrobial activity of two adult edible insects from Tenebrionidae family

Phytochemical constituents Test performed Insect aqueous extract
U. dermestoides T. molitor
Tannins  
Saponins Superficial foam ++ +
Glucosides Keller-Kiliani
Borntrager’s
Carbohydrates Molisch’s + +
Benedict’s + +
Fehling’s + +
Flavonoids Lead acetate
Salkowski’s:
Shinoda
Proteins Bradford + ++
Alkaloids Dragendorff’s:
Mayer’s
Wagner’s
Hager’s:
Steroids Liebermann Burchard’s
Anthraquinones  
  1. Values are expressed as positive (+), very clear result (++), negative (−); not applicable (NA). Acidic extraction and alkaline extraction were used for alkaloids and steroids (nevertheless, no positive results were detected)