Alginate, a natural macromolecule found in brown algae, is a natural polysaccharide extracted from brown algae or bacteria, similar to glycosaminoglycans (GAGs) in the extracellular matrix, with no subacute/chronic toxicity or carcinogenicity, and can be used as an edible food additive or as a scaffolding material for medical purposes with good biocompatibility [10]. Alginic acid is composed of two structural units, gulo-glucuronic acid (denoted as G segment) and its stereoisomer mannuronic acid (denoted as M segment), which are linked by α-1,4 glycosidic bonding in three ways (MM segment, GG segment, and MG segment) to form a branched-free, linear, blocked ****polymer. Alginate readily binds to some divalent cations to form gels. Moreover, its mild sol-gel process, good biocompatibility makes alginate suitable for use as microcapsules for releasing or encapsulating drugs, proteins and cells. When the carboxyl group at the 6-position combines with a sodium ion, it constitutes the sodium salt of alginate (Sodium Alginate). Sodium Alginate is categorized in many ways. Structurally, it can be divided into high G/M ratio, medium G/M ratio and low G/M ratio. From the viscosity, it can be divided into low viscosity, medium viscosity and high viscosity sodium alginate. In terms of purity, it can be categorized into three levels: industrial, edible and medical. Different qualities of sodium alginate have a great influence on the structure of the beads. It is generally recognized that Sodium Alginate with a high G/M ratio and low to medium viscosity is suitable for the preparation of beads. Moreover, when the gel beads are used in the field of bioengineering, medical grade sodium alginate should be selected.
Sodium alginate
Molecular formula: (C 6 H 7 O 6 N a ) n
Shape: white or light yellow powder, odorless, tasteless, soluble in water, insoluble in alcohol and other organic solvents.
Product classification:
1, liquid-phase sodium fucoidan
①granules
②powder: according to the customer's needs, we can provide more than 60 mesh, up to 200 mesh of different viscosity products.
2 、Solid Phase Sodium Fucoidan;
High Viscosity: 500-1000mpa - s
Medium Viscosity: 200-500mpa - s
Low Viscosity: 100-200mpa - s
Ultra Low Viscosity: 10-100mpa - s
Alginic Acid
Molecular Formula: ( C 6 H 7 O 6 H ) n
Properties: white or light yellow powder, insoluble in water, odorless and tasteless.
Main application: alginic acid is a kind of polyglucuronic acid extracted from kelp, which is mostly used in pharmaceutical industry, and has greater medical value as a new type of anti-obesity agent and new type of medicine for treating gastric diseases, and it is also an important raw material for the production of propyleneglycol alginate, alginic acid triethylamine, and sodium dibasic sodium alginate (PSS).
Main technical index:
Acid value: ≥ 230
Acid PH value: 1.5-3.5
Dry weight loss: ≤ 15.0%
Scorch residue: ≤ 5.0%
Ferrous salts: ≤ 0.05%
Heavy metals: ≤ 0.004%
Arsenic salts: ≤ 0.0003%
Arsenic salts: ≤ 0.0003%
Arsenic salts: ≤ 0.0003%
Alginate: 0.0003%
Packing specification: 25 kilograms per bag, packed in composite bag.
Executive Standard: Standard of Ministry of Health :WS1-128-89
Calcium alginate
Molecular Formula: [(C 6 H 7 O 6 ) 2 Ca] n
Properties: white powder to light yellow indeterminate powder, odorless, tasteless, insoluble in water.
Use: Used in food industry, welding rods, plasticizers and wet adhesives. Calcium alginate is a natural carbohydrate extracted from kelp, which can be used as a calcium additive in the health food industry.
Calcium alginate is a new product developed by our company, and the quality of the product has reached the advanced level of domestic products.
Main technical index:
Lead: ≤ 0.0005%
Arsenic: ≤ 0.0002%
Moisture: ≤ 14.0%
Ash: 10-20%
Heavy metal: ≤ 0.001%
Packing specification: 25 kilograms per bag in composite bag.
Executive standard: Q/JSK001-2004
Potassium alginate
Molecular formula: (C 6 H 7 O 6 K )n
Properties: white to light yellow powder, odorless, tasteless, soluble in water to form a viscous solution.
Use: mainly used in medicine and food industry. Potassium alginate is a kind of natural polysaccharide carbohydrates extracted from kelp, which has the effect of lowering blood fat, blood sugar, cholesterol, etc. It is mainly used in pharmaceuticals and health food at present. Meanwhile, potassium alginate is also a good dental impression material and mask shaping agent, which has been gradually used in the cosmetic industry.
Potassium alginate is a new product developed by our company, the quality of which has reached the advanced level of similar products in the world, and can replace imported potassium alginate.
Main technical indicators:
Viscosity: according to customer needs
Lead: ≤ 0.0005%
Arsenic: ≤ 0.0002%
Moisture: ≤ 14.0%
PH value: 6-9.5
Calcium content: ≤ 0.3%
Water-insoluble matter: ≤ 0.30%
Sulphuric acid: ≤ 0.30%.
Sulphated ash: 30-37%
Heavy metal: ≤ 0.001%
Packing specification: 25 kg per bag, packed in composite bag.
Executive standard: Q/JSK002-2004
Ultra-low viscosity sodium alginate
Molecular formula: (C 6 H 7 O 6 Na )n
Traits: white or light yellow dark brown powder, odorless, tasteless, easily soluble in water, insoluble in alcohol and other organic solvents.
Categories: (1) High transparency: mainly used in food and health care industry. (2) Ordinary Transparency: Used in industry, general food industry.
Product characteristics: This product is a natural polysaccharide compound extracted from kelp, the difference between this product and ordinary sodium alginate is that the viscosity is very low,
1% solution viscosity is close to that of water, and its molecular weight is very low, which is a low molecular compound, and thus it has a special health care effect.
Main indexes:
Transparency: common type: about 4cm High transparency type: more than 8.5cm (10cm for distilled water)
Viscosity: 1% solution <50 mpa.s
Other indexes are the same as the common type of sodium alginate
Main application:
Used in dyeing and printing: Inkjet dyeing Used in the food industry: health drinks, foodstuffs, foodstuffs, foodstuffs, foodstuffs, foodstuffs, foodstuffs, foodstuffs, foodstuffs, foodstuffs and other industries. Food industry: health drinks, food, etc. For medicine: antihypertensive, hypolipidemic effectPacking specification: 25 kilograms per bag, packed in composite bags.
Executive standard:
Pharmaceutical grade: the implementation of the U.S. Pharmacopoeia Ⅱ Ⅲ version;
Edible grade: the implementation of the national GB1976-80;
Industrial grade: the implementation of the SC/T3401-1985;
Ultra-low viscosity potassium alginate
Molecular formula: (C 6 H 7 O 6 K) n
Traits: light yellow or brown amorphous. Light yellow or dark brown powder, easily soluble in water, insoluble in alcohol and other organic solvents.
Characteristics: This product is a natural polysaccharide extracted from kelp, its molecular weight is low, the viscosity is almost zero in 1% aqueous solution,
Therefore, it has the effect of medical and health care, the low molecular potassium alginate can be absorbed by the human body, and it can be exchanged with the sodium ions in the intestinal tract, supplementing the potassium ions to discharge sodium ions, and it plays a role of lowering the blood pressure, therefore, it can be used as a raw material for pharmaceuticals.
Main indexes:
Viscosity : 1% solution＜4mpas
Transparency: according to the user's need
Other indexes are the same as the common type of potassium alginate.
Main applications:
1, used in the pharmaceutical industry, the production of a variety of antihypertensive, lipid-lowering drugs
2, used in health food additives, beverages, beer, etc.