Grafting Modification of Starch

Starch is a kind of natural polysaccharide existing in multifarious plants. It is widely used because of its green environmental protection and biodegradability. Even though natural starch has many advantages, there are still some shortcomings that restrain its continued development. The modification of natural starch or the preparation of starch derivatives is an important way to expand its application. Among them, the grafting technology of starch is an important means to modify the structure of starch in Chemical Modification. It is mainly through ring-opening and free radical polymerization of different monomers to graft onto starch, and finally to adjust the properties of the resulting product. At present, grafted starch has become a widely used material. Usually, the monomers used are acrylic acid, acrylonitrile, acrylamide, and so on. Introducing different functional groups to adjust the ratio of hydrophilic and lipophilic chain segments, the starch will have different properties.

Fig.1 Two ways of starch grafting. (Meimoun, et al., 2017)

Our Technologies

Starch and starch derivatives play an important role in the food and pharmaceutical industries. Therefore, it is necessary to develop comprehensive Production and Analytical Technology for Starch and starch derivatives. At CD BioGlyco, we provide a full range of production analysis services on starch grafting, with an annual output of about 2 × 105 tons. The specific techniques are as follows.

• Technology of starch grafting initiation
  At CD BioGlyco, we have two initiation methods for starch grafting. In the first kind of physical initiation, we mainly use ultraviolet light, Co60 rays, and microwave radiation. Another method is chemical initiation, we provide cerium salt, redox, and manganese salt initiation technology.

• Technology of starch graft copolymer polymerization
  For the polymerization of copolymers, we will provide aqueous solution polymerization, emulsion polymerization, and inverse emulsion polymerization.

• Starch derivatives structural analysis and characterization
  CD BioGlyco also provides a comprehensive analysis of the starch derivatives using nuclear magnetic resonance (NMR), infrared (IR), ultraviolet-visible (UV), gel permeation chromatography (GPC), scanning electron microscope (SEM), thermogravimetric analysis (TGA), mass spectrometry (MS), and so on.

Fig.2 Grafting-based services. (CD BioGlyco)

Applications

• Our graft-modified technology can be applied in the production of food additives.
• Graft-modified starch can be applied to the development of carriers for drugs in the medical industry.

Advantages

• Our grafting modification technologies help researchers explore starch functions in greater depth.
• Our diverse range of grafting technologies allows us to provide our customers with customized starch production solutions.

At CD BioGlyco, our professional research team provides a one-stop service for the production, analysis, and characterization of starch grafting modification. We will try our best to meet the needs of our customers. If you are interested in our service, please feel free to contact us.

• Etherification
• Cross-linking
• Condensing Reaction
• Phosphorylation
• Carboxymethylation
• Acid Hydrolysis
• Cationization
• Transesterification
• Citrate Derivatization