1. What Is Gelatin? Definition & Composition

Gelatin is a natural protein hydrocolloid obtained through the controlled partial hydrolysis of collagen — the primary structural protein in animal connective tissues including skin, bones, tendons, and cartilage. It is classified as GRAS (Generally Recognized as Safe) by the U.S. FDA and carries no E-number under EU Regulation (EC) No 1333/2008, appearing on ingredient lists simply as "gelatin."

Unlike intact collagen, gelatin forms thermoreversible gels — it melts when heated and re-gels upon cooling. This unique property, combined with film-forming, emulsifying, and binding capabilities, makes gelatin indispensable across food, pharmaceutical, cosmetic, and industrial sectors.

2. Type A vs Type B Gelatin: Production & Properties

Commercial gelatin is categorized into two primary types based on the extraction method. Understanding this distinction is fundamental for procurement teams and formulators.

Property	Type A Gelatin	Type B Gelatin
Extraction Method	Acid hydrolysis (HCl or H2SO4)	Alkaline / liming process (Ca(OH)2)
Primary Source	Pig skin (porcine)	Bovine hides & bones
Processing Time	10-48 hours	30-100 days
Isoelectric Point (pI)	pH 7.0-9.0 (cationic)	pH 4.7-5.5 (anionic)
Bloom Range	80-250g	80-300g (typically higher)
Gel Clarity	Higher clarity	Slightly lower clarity
Best For	Confectionery, softgels, dairy	Hard capsules, pharma, plasma expanders

Type A Gelatin (Acid Process)

Type A gelatin is produced through partial acid hydrolysis of collagen, primarily from pig skin. Its higher isoelectric point (pI = 7-9) imparts a cationic (positively charged) nature, making it exceptionally effective for foam production and emulsion stabilization. The acid process is faster (10-48 hours) and yields gelatin with higher clarity and lower ash content.

Type B Gelatin (Alkaline Process)

Type B gelatin is derived from bovine hides and bones through an alkaline (liming) process lasting 30-100 days. This extended treatment breaks complex crosslinks in collagen, resulting in an anionic gelatin (pI = 4.7-5.5) with generally higher Bloom strength and better thermal stability. It is the preferred choice for pharmaceutical hard capsules, hemostatic sponges, and blood plasma expanders.

3. Bloom Strength Explained: The Complete Selection Guide

Bloom strength is the industry-standard measure of gel firmness, developed by Oscar T. Bloom in 1925. A standardized 6.67% gelatin solution is held at 10C for 17-18 hours; a 0.5-inch probe is pressed 4 mm into the surface, and the force required (in grams) is the Bloom value. Most commercial gelatins fall between 80 and 300 Bloom.

Bloom Category	Bloom Range	Avg. Molecular Weight	Typical Applications
Low Bloom	30-150g	~20,000-25,000 Da	Marshmallows, coatings, soft fillings
Medium Bloom	150-225g	~40,000-50,000 Da	Gummy candies, yogurt, dairy desserts
High Bloom	225-300g	~50,000-100,000 Da	Hard capsules, premium gummies, industrial binders

Bloom Strength by Application

Application	Recommended Bloom	Key Requirement
Gummy Candies	200-260g	Firm elastic texture; heat resistance during distribution
Marshmallows	220-260g	Rapid foam stabilization; prevents air bubble collapse
Fruit Jellies / Fillings	160-210g	Soft, short texture; clean melt-in-mouth
Panna Cotta / Cream Desserts	160-180g	Tender set; yields to spoon without resistance
Yogurt Stabilization	150-200g	Syneresis control; prevents surface weeping
Hard Gelatin Capsules	200-250g	Rigidity; withstands filling machinery stress
Soft Gelatin Capsules	150-200g	Plasticity; flexes and seals without cracking
Aspics / Meat Glazes	180-240g	Firm, clear gel; salt tolerance
Coatings / Glazes	100-160g	Low viscosity; uniform adhesion at spray temperatures

4. Raw Material Sources: Porcine, Bovine & Fish Gelatin

Porcine Gelatin (Type A)

Porcine gelatin accounts for approximately 52-57% of the global gelatin market by volume. Sourced primarily from pig skin, it offers higher Bloom strength, greater gel clarity, lower ash content, and a shorter extraction cycle (10-48 hours). Europe's concentrated pork production infrastructure ensures robust, auditable supply chains. HuaXuan Gelatin manufactures pharmaceutical and food-grade porcine gelatin with Bloom values from 80 to 250.

Bovine Gelatin (Type B)

Bovine gelatin dominates pharmaceutical applications and is essential for halal and kosher markets. The global bovine gelatin market was valued at USD 2.66 billion in 2024, growing at a 7.1% CAGR. North America leads with ~35% market share. HuaXuan offers beef gelatin in multiple Bloom grades (80-300) with full halal certification and BSE/TSE safety documentation per EU Regulation (EC) No 999/2001.

Fish Gelatin (Marine)

Fish-derived gelatin is the fastest-growing source category, addressing halal, kosher, and pescatarian market needs. Marine gelatin offers higher bioavailability and is increasingly used in nutraceutical and cosmetic applications. HuaXuan produces cold-water fish gelatin with competitive Bloom values and full traceability from sustainable fisheries.

5. Food Grade vs Pharmaceutical Grade Gelatin

Parameter	Food Grade	Pharmaceutical Grade
Standards	FDA 21 CFR, EU food safety	USP, EP, JP pharmacopeia
Microbial Limits	Standard food microbiology	Stricter limits; endotoxin testing
Heavy Metals	Food-grade limits	Pharma-grade limits (lower)
Documentation	CoA, allergen statement	CoA, TSE/BSE, full batch records
Certifications	ISO 22000, HACCP	GMP, USP/EP, FDA-registered
Typical Uses	Confectionery, dairy, meat	Capsules, tablets, wound dressings

Pharmaceutical-grade gelatin must comply with both the European Pharmacopoeia (Ph. Eur.) and the United States Pharmacopeia (USP), which regulate Bloom strength consistency, viscosity, microbial limits, heavy metal content, and dissolution profiles. Beyond specification compliance, full batch documentation — including a Certificate of Analysis — is mandatory for regulated applications.

6. Applications by Industry

Food & Beverage (~60% of Global Volume)

Gelatin serves as a gelling agent, stabilizer, thickener, and emulsifier across confectionery, dairy, desserts, and processed meats. Key products include gummy candies, marshmallows, yogurts, mousses, and aspics. The food and beverage segment is projected to dominate with a 60.23% market share in 2026.

Pharmaceuticals (Highest Value Segment)

The pharmaceutical gelatin market was valued at USD 1.3-1.7 billion in 2023-2024, growing at 5.5-5.8% CAGR. Hard and soft gelatin capsules remain the dominant application, alongside wound dressings (GELFOAM), hemostatic sponges, and blood plasma expanders. HuaXuan supplies hard gelatin capsules and softgel shells with full USP/EP documentation.

Nutraceuticals & Dietary Supplements

The nutraceutical gummy segment is one of the fastest-growing categories, requiring high-Bloom gelatin for texture stability and clean flavor neutrality. Collagen peptides — derived from further hydrolysis of gelatin — represent a rapidly expanding adjacent market for sports nutrition and anti-aging supplements.

Cosmetics & Personal Care

Gelatin's film-forming and moisture-retention properties make it valuable in skincare, haircare, and anti-aging formulations. It is used in face creams, body lotions, shampoos, and sunscreens.

Emerging: 3D Bioprinting & Tissue Engineering

In March 2026, GELITA AG partnered with Black Drop Biodrucker GmbH to advance customized 3D bioprinting solutions using gelatin-based bioinks. Gelatin's biocompatibility and cell-growth support properties make it an ideal substrate for regenerative medicine applications.

7. How to Source Gelatin from a China Manufacturer

China is the world's largest gelatin producer and exporter. When sourcing from a Chinese manufacturer, use this qualification checklist:

1. Verify Certifications: ISO 9001 (Quality), ISO 22000 / FSSC 22000 (Food Safety), HACCP, GMP (Pharma), Halal / Kosher. Request copies and verify validity.
2. Request Documentation: Certificate of Analysis (CoA), Technical Data Sheet (TDS), Safety Data Sheet (SDS), allergen statement, and origin traceability records.
3. Confirm Pharmacopeia Compliance: For pharmaceutical applications, verify USP, EP, or JP compliance. Check FDA registration status for U.S. exports.
4. Audit Batch Consistency: Request samples from 3 different batches. Test Bloom strength, viscosity, pH, and microbial parameters for consistency.
5. Inspect Packaging & Logistics: Gelatin is highly hygroscopic. Confirm nitrogen-flushed, airtight liner bags or sealed containers. Verify cold-chain capability if required.
6. Evaluate R&D Support: A reliable manufacturer should offer formulation guidance, custom Bloom development, and technical troubleshooting.

8. Frequently Asked Questions (FAQ)