Sodium Alginate

Sodium Alginate

CAS Number: 9005-38-3
Source & Form: Extracted from brown seaweed (e.g., Laminaria, Ascophyllum); off-white to light yellow powder
Applications: Food thickener, stabilizer, gelling agent, textile printing, pharmaceuticals
Advantages:

  • Natural hydrocolloid with excellent viscosity and gel-forming properties

  • Heat-stable and pH-sensitive

  • Widely used in food, biomedical, and industrial applications

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What is Sodium Alginate?
Sodium Alginate is a natural polysaccharide extracted from brown seaweed. It is the sodium salt of alginic acid and functions as a stabilizer, thickener, and gelling agent in food products. In the presence of calcium ions, it forms irreversible gels, making it ideal for molecular gastronomy, dental impressions, controlled drug release, and textile printing. Known for its excellent biocompatibility and water solubility, sodium alginate is widely used across food, pharmaceutical, and technical industries.

EU Code: E401

Advantages:

  • Excellent viscosity and film-forming ability
  • Safe, natural, and plant-based thickener
  • Non-toxic and biodegradable
  • Forms thermo-irreversible gels in calcium solutions

Applications:

  • Jelly, yogurt, and ice cream stabilizers
  • Encapsulation of flavors, vitamins, and probiotics
  • Wound dressings, dental molds, and drug delivery systems
  • Reactive printing on fabrics and thickening textile pastes

FAQs:

  • Is Sodium Alginate edible? Yes, widely used in food with E-number E401
  • Is it vegan and gluten-free? Yes, it is seaweed-derived and suitable for all diets
  • Does it need heating to gel? No, it gels in presence of calcium ions without heat
  • Can it be used in cosmetics? Yes, especially in face masks and gels

Sample Package

Aluminum Foil Bag

Barrel Package

lron-ringed Cardboard Drum

General Package

25kqs by Drum

General Package

25kqs by Drum

About the Manufacturer

Anrui Biotechnology Co., Ltd. is a specialized exporter of high-quality food ingredients and additives. We focus on global trade and custom formulation services for functional ingredients, delivering consistent, compliant, and premium-quality supply solutions to our worldwide clients.

Headquartered in Guangzhou, China, Anrui collaborates with GMP-certified manufacturing partners equipped with advanced testing facilities, including HPLC, UV-VIS spectrophotometry, and microbiological analysis, ensuring every batch meets strict international quality and regulatory standards.

Our products are exported to over 60 countries, serving industries such as food, beverages, supplements, and cosmetics.

Why Choose Anrui Bio.

Ready Stock & Fast Shipping
We maintain regular inventory of our most popular sweeteners in our 6,000 m² warehouse, ensuring ready stock and 24-hour dispatch for most orders.
Extensive Product Range
From natural sweeteners like stevia and monk fruit to sugar alcohols and synthetic options, we offer a complete range of sweetening solutions.
Comprehensive Product Certification
Our products are exported globally with full documentation support (COA, MSDS, etc.).
Global Export Experience
Trusted by clients in 50+ countries, we understand the requirements of international food and nutrition markets.

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Bulk Ingredients Ready When You Are

Fast-moving ingredients for food factories, ready for immediate dispatch.