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Centrifugal extraction machine applied in the extraction of curcumin in the chemical industry

by:Deyuan      2020-08-10
Curcumin is usually called curcumin, plant kingdom rare pigment with diketone, into two ketone compounds. Curcumin soluble in methanol, ethanol, isopropanol, ethyl acetate, tetrahydrofuran, alkali, acetic acid, acetone and chloroform and other organic solvents, insoluble in water, it is reddish brown, while in alkaline yellow in neutral and alkaline. The stability of reductant is stronger, coloration ( Not for protein) , after once the color is not easy to fade, but is sensitive to light, heat, iron ion, resistance. 。 。







curcumin is commonly called curcumin, the plant kingdom rare pigment with diketone, into two ketone compounds. Curcumin soluble in methanol, ethanol, isopropanol, ethyl acetate, tetrahydrofuran, alkali, acetic acid, acetone and chloroform and other organic solvents, insoluble in water, it is reddish brown, while in alkaline yellow in neutral and alkaline. The stability of reductant is stronger, coloration ( Not for protein) , after once the color is not easy to fade, but is sensitive to light, heat, iron ion, light resistance, heat resistance, resistance to iron ions is poorer.
curcumin mainly comes from zingiberaceae plants of the genus curcuma root, is the main active ingredient, curcumin is slightly acidic, curcumin, go methoxyl group of curcumin, double methoxy mix of curcumin. Turmeric root curcumin content is about 3% ~ 6%. Curcumin pigment dyeing ability than other natural and synthetic lemon yellow, etc. , especially for protein has a strong ability of dyeing, etc. Now turmeric for natural food additives.

the main purpose of curcumin food
curcumin is allowed to use one of the nine natural pigment in food, used in sausage products, canned, sauce LuZhiPin products such as color, its use in accordance with the normal production needs.
there are many ways to extraction of curcumin on the technological process have distinguishing feature each, but there are extracted and refined two big steps. Commonly used method with organic solvent extraction method, divided into the first deoiling again separation curcumin, extract and curcumin extract and separation of turmeric oil two kinds, still have a kind of alkaline extraction method. In recent years, � � less new technique and technology is also applied to the extraction of curcumin and refined.
alcohol extraction process in normal temperature or high temperature conditions, with different concentrations of ethanol extraction of curcumin, which using the method of extraction, diacolation, etc. , and can use ultrasonic, microwave, surfactants and other auxiliary extraction. Alcohol formulation higher extraction yield, simple process, the reaction conditions are easy to control, easy popularization and application in production.
acid-base method using curcumin contained phenol hydroxyl soluble in alkali, the principle of the curcumin were extracted with a certain concentration of sodium hydroxide solution, then with dilute hydrochloric acid pH adjustment, make curcumin exhalation, curcumin crude product. This method get curcumin crude products easy to dry, but curcumin easily under the condition of alkaline decomposition, decomposition rate from pH 7. 45 began with the augmentation of the alkaline rose sharply, to the pH value of 10. 2, the largest of the proceeds of the curcumin nature of the product is not stable, and alkali extraction process will dissolve out a large amount of starch, affect the refining process of the next step, acid and alkali method curcumin yield is low.
curcumin for configuration of aqueous two-phase extraction technology to add ginger powder, water bath and ultrasonic processing - centrifugal - liquid - filter - curcumin extract. DE source extraction using. cwl - M type centrifugal extraction separation, extraction of curcumin extract.







DE source extraction recommend the centrifugal extraction machine applied in the extraction of curcumin in the chemical industry to help you understand the extraction equipment and production capacity, technological process, characteristics of the equipment, such as detailed specification, at the same time can also see the relevant customer case and extraction equipment solution, the research trend, you can also browse all extraction equipment.
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