BETA-CYCLODEXTRIN 98%

Product name beta cyclodextrin chemical name beta cyclodextrin use other raw materials          

Specification B-CD100 Appearance Traits white powder content 98 (%)         

Shelf life of 24 (months) 7585-39-9 CAS          

Nature: cyclodextrin is a cyclic oligomer of glucose. The crystal is usually composed of 6, 7 or 8 glucose units, which are connected by an alpha, 1-, 4 bond annular phase. Alpha, beta or gamma cyclodextrin, respectively, Cyclohexaamylose -Cyclodex-trinak, beta -Cyclodextrin or Cyclo-heptaamylose, gamma -Cyclodextrin or Cyclooctaamylose]. Cyclodextrin does not have a reducing end, the acid has a certain stability, ordinary starch acid is difficult to be hydrolyzed. Various properties of cyclodextrin table alpha glucose number 6 molecular weight 972.86 space diameter (* 10-8m) 6 hole depth (* 10-8m) 7-8 crystal shape (anhydrous) needle rotation [alpha]D25 water +150.5 (g/100g water solubility of 14.5 DEG, 25 DEG C) and iodine blue color reaction           Preparation method: cyclodextrin was discovered in 1891 by Villers, and the beginning of this century and the success of the separation of alpha and beta cyclodextrin. 1972-1973 in the manufacture of cyclodextrin enzyme (that is, the cyclodextrin glucose translocation enzyme, referred to as CGT-ase) of the bacteria found, especially among the alkaline bacteria, for large-scale production of cyclodextrin has a very significant meaning. With potato, corn, wheat and other processed starch as raw materials, the following process can be used to get the following process: the starch suspension [70-80 degrees C][60 C and ethanol reaction, heating deactivation, filtration, concentration and drying.          

Purpose: cyclodextrin has a hole in the center of a cyclic structure, the internal oxygen atoms of -CH- and glucoside combined, a sulfur water, glucose 2, 3 bit and 6 bit -OH radicals were hydrophilic, through weak van Edward will force other molecular complex inclusion compound. Can be cyclodextrin inclusion of a lot of substances, including rare gases, halogen, dyes, spices, drugs, food, pesticides and preservatives, etc.. After that, the stability, volatility, solubility and reactivity of the reactor were improved. This kind of special function of cyclodextrin makes it become a widely used material. 1 in the pharmaceutical industry applications using cyclodextrin inclusion compound and drug production (Bao Nanghua), (1) can make the drug stability unstable; (2), deliquescent adhesive or liquid medicine powder; (3) sparingly soluble or insoluble drugs can dissolve (Zeng Rong) etc.. 2 in the pesticide industry in the use of cyclodextrin inclusion stabilization, some pesticides are resistant to storage and improve the insecticidal effect. 3 in the food industry in the use of cyclodextrin used in the food industry, has the following functions: (1) specific odor elimination and concealment; (2) improve and improvement of food structure; (3) to reduce and remove the bitter taste; antioxidation; (4) (5) and maintain optimal flavor. 4 in the daily use of chemical industry in the manufacture of cosmetics can also be used as emulsifier emulsifier and quality improvement agent. It also has the deodorization (such as removing halitosis) and antiseptic effect, can be used in the manufacture of dentifrices. 5 other uses can be used as a treatment agent for oily sewage in environmental protection. The aqueous solution of cyclodextrin is used to clean the oil tank, and the waste liquid can be recovered and processed to obtain the fuel oil. 6 cyclodextrin is a valuable chemical reagent in the chemical field. When it exists, the fluorescence intensity of the fluorescent pigment will increase significantly, so it can be used for the analysis of protein and amino acid. It can also be used to separate the long chain organic compounds, such as the. In addition, the adsorbent made from the cyclodextrin can be used as a chromatographic analysis.