Hyaluronic acid is a high molecular weight polysaccharide with D-glucuronic acid and N-acetyl-glucosamine as repeating structure unit.Because of the action of hydrogen bond between the monosaccharide in HA linear axle,HA molecular forms a rigid screw column structure in space.Strong hydrophilic properties exist due to the large amount of hydroxyl groups. Furthermore,HA has a special water binding function and binds its water very strongly,so that it has strong water retention. Theoretically its binding water capacity is up to 500 ml/g as an ideal natural moisturizing factor. HA is also one important component of the skin.It can prevent skin from aging and improve the appearance and tactile sensation of skin. A part of low molecular weight HA can penetrate into dermal layer to control the mid-metabolism,and make the skin moist, smooth and elastic.Therefore the cosmetic functions of HA are its resistance against skin wrinkles and its general health protection.HA is not only a good skin moisturizer,but also promotes cell's metabolism of skin.So HA stands for bio-mimetic cosmetics.The content of hyaluronic acid in body will decrease as they are aging,oral hyaluronic acid supplementation can supplement HA in body and improve skin conditions,moisturizing skin from the inside out,smoothing out wrinkles during cell metabolism.Oral hyaluronic acid Supplementation is very popular in Japan,USA and other western countries. Hyaluronic acid is a natural part of the human body why it is highly suitable for many applications within the field of medicine  and  related  aids.It  is  used  in  ophthalmology,orthopedics  and  cosmetic  surgery.With  the  researching  and development of application in medicine area,hyaluronic acid's application as HA-supplementation and medical treatment material will be one major stream in health care Industry.

Stachyose(Stachyose tetrahydrate) is a low molecular weight tetrasaccharide composed of galactose, glucose, and fructose. It is found in the rhizomes of plants in the genus Stachyose and is a functional oligosaccharide that exists in nature. Stachyose is a sugar formed by the combination of two α - galactoses with a 1,6-glycosidic bond on the glucose side of sucrose. Its molecular formula is C24H42O21, and the pure product is a white powder with a slight sweetness of 22% of sucrose. It has a refreshing taste and no odor. Soluble in water, insoluble in organic solvents such as ether and ethanol. Stachyose has good thermal stability and does not decompose at high temperatures of 100 ℃. However, its thermal stability decreases under acidic conditions, making it suitable for food that requires hot pressing treatment. The storage stability in acidic environments is related to temperature, and it is quite stable when the temperature is below 20 ℃. Both moisturizing and hygroscopic properties are lower than sucrose but higher than high fructose syrup, with an osmotic pressure close to sucrose. At temperatures above 80 ℃, stachyose has coloring properties and can be added to baked goods to give them an enticing burnt yellow color.

Hydroxyapatite (HAP), also known as hydroxyapatite and basic calcium phosphate, is a natural mineralization of calcium phosphate (Ca5(PO4)3(OH)). However, it is often written in the form of (Ca10(PO4)6(OH)2) to emphasize that it is composed of two parts.

Peptone is a powder with a light yellow appearance, produced by hydrolyzing meat, casein, or gelatin with acid or protease and then drying the resultant substance. It possesses a distinctive meat-like aroma. Proteins can also form peptone after being decomposed by acid, alkali, or protease. One of the initial digestion products of proteins in the stomach is peptone. Peptone is rich in organic nitrogen compounds and contains some vitamins and carbohydrates. It serves as a primary ingredient in microbial culture media and is widely used in various fields such as antibiotics, pharmaceutical industry, fermentation industry, biochemical products, and microbiological research. It can also be used to treat digestive tract diseases. Different organisms require specific amino acids and polypeptides, hence the existence of various peptones. Generally, proteins used in peptone production include animal proteins (casein, meat), plant proteins (beans), and microbial proteins (yeast). Peptone provides nutrients such as C sources, N sources, and growth factors for microorganisms.

Whey protein is a mixture of proteins isolated from whey, the liquid material created as a by-product of cheese production. The proteins consist of α-lactalbumin, β-lactoglobulin, serum albumin and immunoglobulins.

     Surfactant, also known as interfacial active agent, is a compound that can significantly reduce the surface tension or interfacial tension between two liquids, liquid gas, and liquid solid. Surfactants are divided into ionic surfactants (including cationic surfactants, anionic surfactants, amphoteric surfactants), non-ionic surfactants, amphiphilic surfactants, etc.

Sweetener refers to a food additive that can impart sweetness to soft drinks. Sweeteners can be divided into two categories based on their nutritional value: nutritional sweeteners and non nutritional sweeteners; According to their sweetness, they can be divided into low sweetness sweeteners and high sweetness sweeteners; According to their sources, they can be divided into natural sweeteners and synthetic sweeteners.

Surfactant, also known as interfacial active agent, is a compound that can significantly reduce the surface tension or interfacial tension between two liquids, liquid gas, and liquid solid. Surfactants are divided into ionic surfactants (including cationic surfactants, anionic surfactants, amphoteric surfactants), non-ionic surfactants, amphiphilic surfactants, etc.