Dried Isatis Root Granules

Drying is the pivotal final stage in transforming concentrated Isatis indigotica root extract into stable, bioactive granules for Traditional Chinese Medicine (TCM) and nutraceutical applications. Common Drying Methods: Vibration Fluid Bed Dryer, Fluid-bed granulator

Drying is the pivotal final stage in transforming concentrated Isatis indigotica root extract into stable, bioactive granules for Traditional Chinese Medicine (TCM) and nutraceutical applications. This controlled dehydration process ensures shelf stability, potency, and rapid solubility while preserving heat-sensitive antiviral compounds like indirubin, indigo, and epigoitrin.

Key Objectives of Drying:

Moisture Reduction

Achieve ≤8% residual moisture (per ChP 2020) to:

Inhibit microbial growth & enzymatic degradation.

Prevent hydrolysis of epigoitrin (critical bioactive).

Structure Preservation

Maintain porous granule morphology for instant solubility (>85% in 60°C water).

Bioactivity Retention

Minimize thermal degradation of thermolabile alkaloids and polysaccharides.

Common Drying Methods

Vibration Fluid Bed Dryer
The vibration source is driven by a vibration motor, which has balanced operation, easy maintenance, low noise and long service life.
High effection, raw material is heates evenly and heated evenly and heat exchange is fully used and dry capacity is high. Compared with ordinary drier, the energy can be saved about 30%.

Fluid-bed granulator
FL fluid-bed granulator is used for mixing, granulating, drying, and top-spray coating of powders in the pharmaceutical, food, and chemical industries, ideal for tablet granules, instant beverages, and seasonings.FL Fluid-bed Granulator excels in its ability to perform mixing, granulating, drying, and coating operations in a single step.