Powdered Sodium Alginate

 

Powdered sodium alginate is a by-product extracted from seaweed. The aqueous solution of sodium alginate has a high viscosity and has been used as a thickener, stabilizer, and emulsifier for food.

 

Sodium alginate is a non-toxic food and has been included in the US Pharmacopoeia as early as 1938.

 

Product Name	Sodium alginate	Alginic acid
Specification	99%	98%
MF	C5H7O4COONa	C6H9O7Na
Appearance	Off-White Powder	White Powder
CAS No.	9005-38-3	9005-32-7

 

Powdered sodium alginate and alginic acid is a natural polysaccharide extracted from brown seaweed. It has many functions in the food industry, such as thickeners, stabilizers, emulsifiers, texture modifiers, starch anticoagulants and gelling agents.

 

Alginate can be used as a natural additive in various foods, such as wheat flour, noodles, frozen pasta products, bakeries, etc.

 

 

Analysis	Specification	Result
Physical Description
Appearance	Milkwhite to light yellow powder	Complies
PH value	6.0～8.0	7.06
Size mesh	97% throught 80 mesh	Complies
Chemical Tests
Identification	Slowly dissolve in water to form a viscous liquid, insoluble in ethyl alcohol ether	Complies
Identification	A large amount of gelatinous precipitation should occur immediately	Complies
Identification	No precipitation	Complies
Viscosity	800.0Mpa.s-900.0Mpa.s	880Mpa.s
Moisture	15.0% Max	13.53%
Insoluble matter in water	0.6% Max	0.52%
Heavy metal
As	5.0mg/kg Max	Complies
Pb	2.0mg/kg Max	Complies
Conclusion	Complies with the GB1886.243-2016 Standard.
General Status	Non-GMO, ISO Certificated.
Packing and Storage
Packing: Pack in paper-carton and two plastic-bags inside.
Shelf life: 2 year when properly stored.
Storage: Store in a well-closed place with constant low temperature and no direct sun light.

 

 

1. Food field

 

(1) Used as a thickener and stabilizer in low-fat ice cream and plant-based cheese.

 

(2) Molecular gastronomy carrier
Powdered sodium alginate forms "artificial caviar" or spherical packaging of flavor substances through calcium ion cross-linking.

 

(3) Dietary fiber supplement
Daily intake of 5g can increase the level of intestinal short-chain fatty acids (SCFA) by 30% and promote the proliferation of probiotics.

 

2. Medical field

 

(1) Burn dressing:
Combined with silver ions, inhibit Pseudomonas aeruginosa and promote granulation tissue regeneration.

 

(2) pH sensitive gel:
Stable in gastric juice and slow-release drugs in intestinal juice.

 

(3) 3D printed scaffold:
Loaded with stem cells to repair bone defects, animal experiments show that bone density increased by 35%.

 

(4) Hemostatic sponge:
Powdered sodium alginate can absorb exudate up to 20 times its own weight and accelerate platelet aggregation.

 

3. Environmental governance

 

(1) Heavy metal adsorption:

Carboxyl chelates with Pb²⁺/Cd²⁺, and the adsorption capacity after modification reaches 800mg/g.

 

(2) Oil recovery:

Cross-linked with Fe³⁺ to form a hydrophobic gel film, which can absorb 10 times the weight of crude oil on the water surface.

 

(3) Degradable packaging:

Replace plastic film, with a natural degradation rate of 90% in 28 days and a tensile strength of 15MPa.

 

4. Cosmetics and personal care

(1) Instant lifting: Form an "instant firming film" with Ca²⁺ for anti-aging masks.

 

(2) Microplastic replacement:

As abrasive particles (particle size 50-200μm), powdered sodium alginate is biodegradable and has a stripping efficiency comparable to polyethylene microspheres.

 

(3) Hair styling:

Spray containing chitosan has a styling force of 8 levels of wind resistance and is easy to remove after rinsing.

 

 

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