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Chemical constituants of shana - Crotalaria retusa Linn.

shana :

Seedpods and seed Photograph by: Arria Belli

Phytochemistry:

 Study of seeds yielded proximate values of moisture 15.00, fiber 37.50, ash 15.00, crude protein 4.37, oil 15.00, and carbohydrates 13.13%. 
- Study isolated a pyrrolizidine alkaloid, monocrotaline.
- Phytochemical screening of leaf, stem, seed, pods and flowers yielded saponins, tannins, alkaloids, and sterols. Leaf showed highest concentration of phenols (67.35 ± 1.153 mg GAE/g of extract). 
- Phytochemical screening of crude extract of leaves yielded alkaloid++, steroid++. flavonoid+, tannin+, reducing sugar++, with an absence of saponin and phenol. 

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