We are doing our research about the phytochemicals in ferns...We would use Libermann Burchard test to screen for saponins but we do not know what color change would state a positive answer
How would you know if your plant sample has saponins?
Wikipedia
Reply:Powder the plant material and soak in distilled water and shake well in test tube. If foam appears in the tube it has saponin and the foam will remain for some time above the level of water with powdered plant material
Reply:"Charantin is (...) substance, (...) giving a play of colours changing from violet to blue to green and yellow with Libermann Burchard test"
http://www.glycoprinclinicalstudies.com/...
Charantin is glycoside, and saponins are glycosides of triterpenoids or steroids. This info may be usefull for you therefore.
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