Introduction

Alginate sodium is a natural polysaccharide extracted from kelp carbohydrates. It’s widely used in food, medicine, textile, printing and dyeing, paper making, daily chemical products, such as a thickening agent, emulsifier, stabilizer, adhesives, sizing agent, etc. Since the 80s, alginic acid sodium has got new development in food applications. Alginic acid sodium is not only a kind of safe food additives, and can be used as a bionic food or curative effect of the base material, because it is actually a kind of natural cellulose, and can reduce the absorption of fat sugar and bile salt, with lower serum cholesterol, blood triglycerides, and glucose, it can also prevent hypertension, diabetes, obesity and other modern disease. In the gut it can restrain harmful metals such as cadmium, lead, and strontium which accumulate in the body. It is because of the important role of alginic acid sodium both at home and abroad taht it has been increasingly welcomed by people. The Japanese foods that are rich in sodium alginic acid is referred to as the "longevity food", Americans call it "fantastic food additives".

Application

In pharmaceutical industry 
Excipient:dental impression material,medical ointment,tablets etc.
Haemostatic:haemostatic gauze,scald gauze,spuze,spray haemostatic etc.
Has the effect of preventing and removal of radioactive element and poisonous metals.

In food industry

Stability: ice cream, yoghurt, cream znd cheese etc

Thickening and emulsifying: salads, pudding, jam, tomato juice, canned products, etc

Hydration: Noodle, vermicelli, bread, confectionery, cool and frozen products

Gelating: frozen foods imitated foods and various gel foods, protective cover for fruits, meat, poultry and aquatic products, sugar coating, stuffing etc.

Film-formation: various cosmetics

Products are grouped into four categories according to viscosity: low, medium, high and extra high products and into three groups according to  per particle size : coarse, fine and extra fine. Adopted standard: “Food Additive Sodium Alginate”GB1976-80&FCCIV.

In printing and textile industry

Printing paste: Medium and high level printing as sizing paste for reactive dyes

In other industries

Papermaking starching

Agriculture, Sodium alginate is material for Address Seeds, Pesticides, Pesticides, Anti-virus;

Coating of the welding electrode, resin coating, rubber ointment, battery spepration layer, water treatment

Artificial fiber: can be synthesized with asbestos short fiber