biyana :
Phytochemistry:
- Stem and bark yield alkaloids, flavonoids, glycosides, and tannins.
- An alcohol extract of bark yielded carbohydrates, alkaloids, phenols, tannins and phytosterols. A benzene extract yielded carbohydrates, flavonoids, and sterols.
- Leaves yield six major oxindolic alkaloids viz. mitraphylline, isomitraphylline, pteropodine, isopteropodine, speciophylline, and uncarine F. Other plant alkaloids are rotundifoline, rhynchophylline, isorotundifoline, rhynchociline, speciocilitine, speciofoline, mitragynine. Plant also yield compounds like pyroligneous acids, aldehydes, ketones, scopoletin, thermophylline, daucosterol, quinovic acid, ß-sitosterol and methyl acetate.
- Leaves yielded four hetero-yohimbine type oxindole alkaloids from an acid base treated chloroform fraction of ethanolic extract of leaves: 17-dihydro-17b-hydroxy isomitraphylline , 17- dihydro-17b-hydroxy mitraphylline , together with two known alkaloids, isomitraphylline and mitraphylline . Mitraphylline was the main alkaloid
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- » Chemical Constituents of biyana
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- » Parts used and Dosage of biyana
- » Morphology and Histology of biyana
- » Distribution and Conservation of biyana
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Dr Mohamed Rifas
A dual country licensed Ayurveda Physician, currently working in Dubai as Head of Ayurveda and Yoga department. He also works as visiting doctor for Dr Hassan Ayurveda Brain and Spine Specialty Hospital. He is specialized in joint issues, brain and spine related issues and gastrointestinal issues with respect to anxiety.
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