Sabroxy® is a powdered bark extract derived from the flowering plant Oroxylum indicum and standardized to 10% Oroxylin A, a unique flavonoid compound which is present in this plant species.
Sabroxy® also contains other unique flavonoid compounds (chrysin, baicalin and baicalein) present in Oroxylum indicum, giving it a broader spectrum of activity.
Sabroxy® is not irradiated or treated with ethylene oxide (EtO), and is also BSE/TSE free. The technical specifications of Sabroxy® are provided in Table.
Chemical structure of Oroxylin A from
Oroxylum indicum sp.
Technical specifications
| Botanical/scientific name | Oroxylum indicum |
| CAS no. | Oroxylin A: 480-11-5 |
| Plant part | Bark |
| Country of origin | India |
| Organoleptic properties | |
| Appearance | Powder |
| Colour | Brown |
| Contaminants | |
| Total heavy metals (ppm) | ≤20 |
| Lead (ppm) | ≤3 |
| Residual solvents | To comply as per USP |
| Microbiological properties | |
| Total aerobic microbial count (CFU/g) | ≤5000 |
| Total yeast and mould count (CFU/g) | ≤100 |
| Escherichia coli | Negative/10 g |
| Salmonella | Negative/10 g |
| Staphylococcus aureus | Negative/10 g |
| Pseudomonas aeruginosa | Negative/10 g |
| Bile-tolerant Gram-negative bacteria | Negative/10 g |
| Shelf-life | 2 years |
Chemical fingerprinting of Sabroxy® (10% Oroxylum indicum bark extract) shows the presence of characteristic flavonoid compounds, which also helps to distinguish the extract from other plants containing similar compounds such as Scutellaria baicalensis. An HPLC method was developed to identify key differences between these two plants.
HPLC chromatogram of Sabroxy®, Oroxylum indicum
aqueous-alcoholic extract
HPLC chromatogram of Scutellaria baicalensis
aqueous-alcholic extract