Cosmetic Raw Materials

Xanthan gum, also known as xanthan gum and Hansen gum, is an extracellular acidic heteropolysaccharide produced by fermentation of Xanthomonas. D-glucose, D-mannose and D-glucuronic acid are high molecular weight polysaccharides with a ratio of 2:2:1. The secondary structure of xanthan gum is that the side chain is reversely wound around the backbone of the main chain, and the rod like double helix structure is formed by hydrogen bonding. Xanthan gum is a light yellow to white flowable powder with a slight odor. It is soluble in cold and hot water, neutral, resistant to freezing and thawing, insoluble in ethanol. When it meets with water, it disperses and emulsifies into a stable hydrophilic viscous colloid. Xanthan gum is a kind of biological gum which integrates thickening, suspension, emulsification and stabilization, and has the best performance in the world, so it is widely used in more than ten fields such as food, petroleum, medicine and daily chemical industry. In food: many foods are added xanthan gum as stabilizer, emulsifier, suspending agent, thickener and processing aid. In daily chemical industry: Xanthan gum contains a large number of hydrophilic groups, which is a good surfactant, and has antioxidant, anti-aging and other effects. In medicine: Xanthan gum is a functional component of microcapsule material which is popular in the world and plays an important role in controlling drug release. In petroleum industry, because of its excellent salt resistance and heat resistance, it is widely used in drilling in special environment such as ocean and high salt zone, and can be used as oil displacement agent to reduce dead oil area and improve oil recovery.

Hyaluronic acid is an acidic mucopolysaccharide. With its unique molecular structure and physicochemical properties, hyaluronic acid shows a variety of important physiological functions in the body, such as lubricating joints, regulating the permeability of vascular wall, regulating protein, water and electricity, chemical Book solute diffusion and operation, promoting wound healing and so on. Especially important, hyaluronic acid has a special water retention effect. It is the best moisturizing substance found in nature. It is called an ideal natural moisturizing factor.

Iketoine is also called tetrahydromethylpyrimidine carboxylic acid. Ikedoin can protect halophilic bacteria from harm. It has two major functions: 1) moisturizing: it is an important substance to maintain osmotic pressure balance. Its unique molecular structure has strong water molecule complexing ability, which can structure the free water in cells. It is a very excellent natural moisturizing agent. 2) Repair: Ikedoine can resist the damage of ultraviolet rays to skin, and repair the cell DNA damage caused by ultraviolet rays.

The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid receptor agonists, 1α,25-dihydroxyvitamin D3 analogue, and phoslactomycin B.

A rare natural chiral amino acid derivative, originally a sulfur-containing crystal compound isolated from ergot fungus. In the dissolved state, ergothioin exists in the form of tautomers between its thioketone and thiol structures; However, at physiological pH, ergot sulfur mainly exists in the form of thioketone, so it only reacts with some thiol reagents.