GELATIN AND ITS ROLE IN CONTROLLED MEDICINE RELEASE

Gelatin, a common ingredient in the pharmaceutical industry, is not only the main component of capsule shells but also plays a crucial role in controlling the dissolution rate and release of active ingredients. Adjusting the dissolution properties of capsules through gelatin ensures effective absorption while enhancing the user experience. Let’s explore the factors influencing dissolution and methods to optimize it below.

1. The Role of Gelatin in Capsules

Gelatin, derived from collagen in animal skin and bones, is an ideal material for capsule shells due to its ability to form thin, flexible, safe, and biocompatible films. Gelatin capsules protect active ingredients from moisture, light, and oxidation. Furthermore, gelatin can be customized to control dissolution rates, ensuring drug release at the right site within the body—be it the stomach, small intestine, or colon.

2. Factors Affecting Gelatin Dissolution

2.1. Gelatin Bloom Strength

Bloom strength measures the firmness and hardness of gelatin:

• High Bloom (200-250): Creates sturdy capsules that dissolve more slowly, suitable for controlled-release drugs.
• Low Bloom (150-200): Produces softer, faster-dissolving capsules, ideal for rapid absorption.

2.2. Gelatin Viscosity

• High viscosity: Results in more durable capsule shells that dissolve slowly.
• Low viscosity: Enables quick dissolution in digestive fluids, accelerating drug absorption.

3. Methods to Adjust Capsule Dissolution Using Gelatin

3.1. Modifying Ingredients and Additives

• Glycerin or Sorbitol: Added to gelatin to increase flexibility and control dissolution rates, commonly used in softgel capsules.
• Polymer Coatings: Using compounds like hydroxypropyl methylcellulose (HPMC) creates a protective layer, ensuring capsules dissolve only in the alkaline environment of the small intestine.

3.2. Controlling Shell Thickness

• Thin shells: Suitable for drugs requiring rapid release, dissolving immediately in the stomach.
• Thick shells: Take longer to dissolve, protecting active ingredients until they reach deeper digestive areas.

3.3. Using Modified Gelatin

• Acid-resistant gelatin: Processed to withstand the stomach’s acidic environment, ideal for drugs targeting the intestines.
• Cross-linked gelatin: Prolongs dissolution time, suitable for controlled-release medications.

4. Optimizing Production Processes

4.1. Moisture Adjustment

Gelatin with higher moisture content dissolves faster, while drier, firmer gelatin slows dissolution. Controlling moisture during production is critical.

4.2. Production Temperature

High-temperature treatment stabilizes gelatin structures, reducing dissolution rates. Conversely, low temperatures retain its natural rapid-dissolving properties.

4.3. Combining Gelatin with Other Excipients

Gelatin can be mixed with excipients like pectin or carrageenan to alter dissolution characteristics. For example:

• Pectin: Slows dissolution, suitable for drugs released in the intestines.
• Carrageenan: Enhances durability and controls capsule dissolution rates.

5. Dissolution Testing

Post-production, capsules undergo dissolution testing in simulated environments to ensure compliance with pharmaceutical standards:

• Stomach fluids: To assess dissolution in acidic conditions.
• Intestinal fluids: To evaluate protection and release in the small intestine.

6. Benefits of Controlled Dissolution via Gelatin

• Optimized therapeutic effects: Ensures drugs are released at the right time, improving absorption efficiency.
• Enhanced aesthetics: Gelatin shells can be printed with logos, colored, and customized to reinforce brand identity.
• Safety assurance: Gelatin is natural, environmentally friendly, and safe for the body.

7. Choose Greenifi Gelatin – Premium Vietnamese Gelatin

Greenifi Gelatin is a superior choice for brands prioritizing sustainability, offering:

• Safety and transparency: Produced under international standards, free from harmful substances.
• Versatile applications: Suitable for cosmetics, from skincare to nail care.
• Environmental commitment: Made with eco-friendly raw materials to support ecological preservation.

Conclusion

Adjusting capsule dissolution through gelatin is a crucial step in pharmaceutical manufacturing, meeting diverse therapeutic needs and improving user experience. With advancements in technology and modern production processes, gelatin remains a vital solution in the pharmaceutical industry, proving indispensable in enhancing drug quality and efficacy.

When selecting the right capsules, consider the practical application and pharmaceutical properties to ensure optimal safety and effectiveness.

ABOUT GREENIFI GELATINE: 

We proudly supply bovine gelatine powder with bloom strength ranging from 100 to 250 and mesh size from 8 to 20, entirely produced in Vietnam. Greenifi Gelatine products meet all international certifications, including GMP, FDA, ISO 22000:2018, and come with a COA adhering to the Vietnamese Pharmacopoeia standards, ensuring exceptional safety and quality.

Comprehensive Support:

• Proper gelatine usage: Avoid issues like clumping or failure to set during production.

• Addressing common challenges: Solutions for soft capsules, gummy candies, and cosmetic gels.

• Distinguishing gelatin types: Understand the differences between gelatine sheets and powder.

• Technical specifications: Grasp the importance of bloom strength, mesh size, and other critical parameters.

• Exploring applications: Learn about gelatine's benefits and the risks of incorrect usage.

📩 Contact us:

• Email: info@global-ifi.com

• Facebook: www.facebook.com/greenifigelatin

Greenifi Gelatin - Green ingredients for good life!