Prospect of Sodium Alginate in Cosmetic Industry in 2017

Editor:Sodium alginate　　　　Source:Sodium alginate manufacturer　　　　2017-05-31 17:52

Sodium alginate is a by-product after extracting iodine and mannitol from kelp or Sargassum of brown algae, and its molecule is composed of β -D- mannuronic acid (β -D-mannuronic, m) and α -L- guluronic acid (α -l -L-guluronic, g) press (1→ 4) key connection, which is a kind ofNatural polysaccharideIt has the stability, solubility, viscosity and safety required by pharmaceutical excipients. Sodium alginate has been widely used in food industry and medicine.
　　　　Sodium alginate is derived frombrown algagenerickelporsea grapeMiddle extractioniodineandmannitolSubsequentby-productIts molecule consists of β -D- mannuronic acid (β -D-mannuronic, m) and α -L- guluronic acid (α -l -L-guluronic, g) press (1→ 4) key connection. The aqueous solution of sodium alginate has high viscosity and has been used as food.Thickener、stabilizing agent、emulgatorWait. Sodium alginate is a non-toxic food, which was included in the United States Pharmacopoeia as early as 1938. Sodium alginate contains a lot of — COO－-,which can show polyanionic behavior in aqueous solution and has certain adhesion, can be used as a drug carrier for treating mucosal tissue. Under acidic conditions, — COO－-into — COOH，ionization degreeWhen decreasing, the hydrophilicity of sodium alginate decreases, the molecular chain shrinks and the pH value increases, — COOH group dissociates constantly, and the hydrophilicity of sodium alginate increases and the molecular chain stretches. Therefore, sodium alginate has obvious pH sensitivity. Sodium alginate can quickly form gel under extremely mild conditions, when Ca2+, Sr2+ and so on are present.cationWhen it exists, Na+ on G units reacts with divalent cations, and G units pile up to form cross-linked network structure, thus forming hydrogel. Sodium alginate formationgelMild conditions, which can avoid sensitive drugs, protein,cellandenzymeInactivation of such active substances. Because of these excellent characteristics, sodium alginate has been widely used in food industry and medicine.

With the development of science and technology,sodium alginateIt is widely used in both printing and dyeing industry and food industry. Sodium alginate does not affect the dyeing process of reactive dyes and fibers in the printing and dyeing process, but also prints clear and bright patterns and feels good. Food-grade sodium alginate is also used in ice cream, drinks, health food and so on. Sodium alginate is still widely used in our daily life. However, it is a new thing that sodium alginate is added and used in the manufacture of cosmetics at present.Qingdao Hongjie Sodium AlginateIt is believed that sodium alginate cosmetic grade will have a broad market prospect in the next 5-10 years.

　　Sodium alginate is mainly used as a thickener in cosmetics. At present, there are many reported thickeners. How to choose these thickeners when developing specific product formulas? So what are the special advantages of sodium alginate thickener for the production and function of cosmetics?

　　1. Sodium alginate thickener is not easy to hydrolyze, and its viscosity is stable in a wide range of pH and temperature. At present, the most commonly used is PEG-150 distearate. Esters used as thickeners generally have relatively large molecular weights, so they have some properties of polymer compounds. The thickening mechanism is due to the formation of a three-dimensional hydration network in the water phase, which includes surfactant micelles. These compounds can be used as thickeners in cosmetics and emollients.

　　2. Sodium alginate is a natural organic substance, and the natural gum of thickener is mainly polysaccharide. It contains repeated glucoside units, and each glucoside unit contains three hydroxyl groups, through which various derivatives can be formed. Sodium alginate thickener thickens by hydrating and swelling long chains, and the cosmetic system shows obvious pseudoplastic rheological morphology.

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Sodium alginate is used as the bottom material of hot pot for thickening.

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