Overcoming Solubility Challenges: Micronization of Berberine Using the GAS Antisolvent Technique

Area of Science:

• Pharmacology
• Materials Science
• Chemical Engineering

Background:

• Berberine is a natural compound with therapeutic potential for diabetes, high cholesterol, and infections.
• Its clinical use is hindered by poor water solubility and low bioavailability.
• Micronization is a key strategy to enhance the dissolution rate of poorly soluble drugs.

Purpose of the Study:

• To micronize berberine particles using the antisolvent GAS technique.
• To evaluate the impact of micronization on berberine's solubility and dissolution properties.
• To confirm the structural integrity of berberine post-micronization.

Main Methods:

• Berberine micronization was performed using the antisolvent GAS technique at 35°C and 80 bar.
• Solubility studies were conducted using various organic solvents (acetone, dichloromethane, ethanol, methanol, 1-butanol, 1-propanol).
• Particle size reduction was analyzed, and Fourier-transform infrared spectroscopy (FTIR) confirmed functional group preservation.

Main Results:

• Particle size was reduced to 6.34 μm.
• Cumulative dissolution increased by up to 18%.
• An enhanced melting temperature and dissolution rate were observed.

Conclusions:

• The antisolvent GAS technique is effective for berberine micronization.
• Micronization significantly improves berberine's dissolution properties and potential bioavailability.
• This technique offers a viable method for enhancing the therapeutic efficacy of berberine.