Jiangnan University

Chunsen Wu

Zhengyu Jin

Yaoqi Tian

Xueming Xu

Na Yang

Benxi Wei

Xiuting Hu

Bao Zhang

Han Tao

Binghua Sun

The present disclosure discloses a triple-responsive starch-based microgel and a preparation method thereof. The present disclosure prepares Coxidized starch and PNIPAM semi-interpenetrating network microgel, namely the triple-responsive starch-based microgel, mainly with pH sensitive Coxidized starch and temperature sensitive NIPAM (N-isopropylacrylamide) as raw materials, and using an inverse emulsion polymerization method. The triple-responsive starch-based microgel according to the present disclosure is a spherical particle with the particle diameter of 15-25 &#x3bc;m, has pH, temperature and ionic strength-sensitivity, good biocompatibility and biodegradability, and can be widely used in the fields of nutrient protection, controlled drug release, protein separation and purification and the like. Meanwhile, its preparation process is simple and controllable with mild reaction conditions, and is suitable for large-scale production.

Triple-responsive starch-based microgel and preparation method thereof

A method for fractionating dextrin, belonging to the technical field of food processing. In principle, the method for fractionating dextrin of the present invention is based on the fact that the dextrin is incompatible with polyethylene glycol in aqueous solution and a larger molecular weight of the dextrin results in more significant incompatibility with polyethylene glycol. Accordingly, the stepwise precipitation of dextrin components having a molecular weight from large to small may be realized by gradually increasing the concentration of polyethylene glycol by gradually adding polyethylene glycol to dextrin in aqueous solution.

Method for fractionating dextrin

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Wuxi, China

Chunsen Wu