What Is Microencapsulated VB1 (33.3% Thiamin Mononitrate)?

What is Microencapsulated VB1 (33.3% Thiamin Mononitrate)?

Microencapsulated VB1 (33.3% Thiamin Mononitrate) is a food-grade vitamin B1 supplement, with thiamin mononitrate (C₁₂H₁₇N₅O₄S, CAS: 532-43-4) as the core material and mono & diglycerides and edible corn starch as the wall material, produced by microencapsulation technology, appearing as off-white to light yellow free-flowing powder or fine granules with some agglomerates that disperse with conventional mixing techniques, insoluble in water and partially soluble in methanol and other organic solvents.

1. Enhanced Thermal and Environmental Stability for Vitamin B1

Thiamin mononitrate is one of the most heat-sensitive vitamins, prone to degradation under high temperature, light exposure, and alkaline conditions during food processing. The microencapsulation technology employing mono and diglycerides together with edible corn starch as wall materials forms a protective coating around each vitamin particle, effectively shielding thiamin from thermal and oxidative damage. This significantly preserves vitamin potency during baking, extrusion, pasteurization, and long-term storage, delivering more reliable nutritional outcomes compared to unprotected thiamin sources.

2. Water-Insoluble Format for Formulation Flexibility

Raw thiamin mononitrate is freely water-soluble, whereas the microencapsulated form is insoluble in water and only partially soluble in methanol and other organic solvents. This fundamental change in solubility behavior prevents vitamin migration and loss during aqueous processing steps, while enabling novel delivery formats such as coated tablets, delayed-release capsules, and multiplexed nutrient blends where controlled vitamin release is desired.

3. Convenient Agglomerate Structure for Easy Dispersion

The product presents as off-white to light yellow free-flowing powder or fine granules containing agglomerates that readily break apart through conventional mixing techniques. This unique physical structure combines excellent powder flowability for automated handling with reliable dispersion in final formulations, ensuring uniform vitamin distribution without the need for specialized equipment or extended mixing times.

1. Fortified Flour and Bakery Products

Thiamin mononitrate is highly heat-sensitive and degrades easily during baking. Microencapsulation protects VB1 from thermal degradation at high temperatures, making this premix ideal for dry fortification of wheat flour, rice, and bakery products where vitamin retention during processing is critical.

2. Instant Beverage Powders and Nutritional Drinks

The water-insoluble format prevents VB1 from dissolving and migrating in aqueous systems, while the agglomerate structure disperses easily with conventional mixing. This makes it well-suited for instant drink powders, sports nutrition drinks, and ready-to-mix nutritional beverages.

3. Dietary Supplement Tablets and Capsules

With a standard VB1 content of 33.3%–36.0%, this premix provides precise and concentrated vitamin dosing for tablet and capsule manufacturing. The microencapsulated wall material also improves shelf-life stability, preventing thiamin degradation during long-term storage of finished supplement products.

4. Animal Feed and Premixes

Vitamin B1 is essential for animal energy metabolism and neurological function. This premix delivers stable VB1 performance during pelleting and extrusion processing, making it suitable for livestock, poultry, and aquaculture feed formulations where thermal processing would otherwise destroy unprotected thiamin sources.

Q1: What is microencapsulated VB1 and how does it differ from regular thiamin mononitrate?

A: Microencapsulated VB1 is vitamin B1 (thiamin mononitrate) coated with mono and diglycerides and edible corn starch through microencapsulation technology. Unlike raw thiamin mononitrate which is freely water-soluble and heat-sensitive, the microencapsulated form is water-insoluble and protected from thermal degradation, preserving vitamin potency during processing and storage.

Q2: What is the VB1 content and particle size specification of this product?

A: The standard VB1 content is 33.3%–36.0% (typical value 34.6%). The product appears as off-white to light yellow free-flowing powder or fine granules with some agglomerates that disperse through conventional mixing techniques.

Q3: Is this product suitable for vegan and vegetarian formulations?

A: Yes. The product carries Gluten-free, GMO-free, Vegan/Vegetarian, Lactose free, Starch free, BSE/TSE-free, Antibiotics free, Hormone free, and other clean-label declarations, making it suitable for vegan, vegetarian, and broad-spectrum food and supplement formulations.

Q4: How should this product be stored and what is its shelf life?

A: Store in a cool, dry place at room temperature with humidity below 65%, protected from direct sunlight. The container must be sealed after opening and the product should be used promptly. Packaged in 20kg fiber drums with aluminum lining and food-grade PE bags. Shelf life is 18 months from the date of manufacture under proper storage conditions.

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