This is a report of preliminary screening of 120 samples representing 103 different species, wherein 27, 14, 85, 30 and 45 samples gave positive tests for alkaloids, saponins, steroid/triterpenoids, coumarins and flavonoids respectively. Only Solidago canadensis Linn, responded to Legal test and Cassia fistula Linn, contain anthraquinone derivative.
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Dan et al. (2024) studied this question.
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