NO.2 Fruit and vegetable organic and natural pectin extraction production line
Pectin is a group of polygalacturonic acids. It is water-soluble and industrially separable with a molecular weight of about 50.3 million. Under suitable conditions, its solution can form gel and partially methoxidation (methylation, namely the formation of methanol ester), and its main components are partially methylated A (L,4) -d polygalacturonic acid. The residual carboxyl units exist or form salts such as ammonium, sodium potassium and calcium in the form of free acids. Our country is rich in pectin resources, citrus peel beet pulp, apple peel dreg, lemon peel dreg, sunflower dish contain a lot of pectin. Has become the industrial production value of the main raw materials. At present, the citrus peel is used as the main raw material to produce pectin in China. Pectin has good emulsification, thickening, stability and gelation, and has been widely used in food, textile, printing and dyeing, tobacco, metallurgy and other fields. At the same time, because pectin has antibacterial, hemostatic, detumescence, detoxification, blood lipid lowering, anti - radiation and other effects, or is an excellent drug preparation matrix. In recent years, it has been widely used in the field of medicine.
 
Pectin can be divided into water-soluble and water-insoluble pectin can be dissolved in sodium hexametaphosphate solution or inorganic acid solution. The original pectin in natural pectin is insoluble in water, but can be hydrolyzed into water-soluble pectin under the action of acid, alkali, salt and other chemical agents. At present, the main extraction methods used at home and abroad are as follows: acid extraction method, ion exchange resin method.