57results about How to "Good acid stability" patented technology

This invention relates to non-precious metal fuel cell cathode catalysts, fuel cells that contain these catalysts, and methods of making the same. The fuel cell cathode catalysts are highly nitrogenated carbon materials that can contain a transition metal. The highly nitrogenated carbon materials can be supported on a nanoparticle substrate.

The present invention relates to crosslinked polyamine particles and / or pharmaceutical compositions comprising, at least in part, crosslinked polyamine particles and aggregates of such particles (including cured aggregates of crosslinked polyamine particles). The compositions may be in the form of tablets comprising, for example, particles larger than 500 μm, and used for treating patients, for example, patients with hyperphosphatemia.

The invention relates to a preparation method of aquatic protein peptide microcapsules. The preparation method comprises the following steps that dry aquatic protein peptide is selected to be used as core materials and is subjected to ultramicro crushing treatment; 0.5 to 1 mass percent of gelatin, 1 to 2 mass percent of arabic gum and 0.5 percent to 0.8 mass percent of xanthan gum are respectively weighed, are completely dissolved through water addition and are used as wall materials through proportional mixing; the wall materials and the core materials are mixed according to a ratio of 6:1 to 7:1, and the emulsification homogenizing treatment is carried out; and the emulsified and homogenized wall materials and the core materials are subjected to spray drying, and the aquatic protein peptide microcapsules are obtained. The microcapsules obtained according to the preparation method provided by the invention have the advantages that the encapsulation efficiency is high, the palatability is good, the acid stability is good, the slow release is realized, and in addition, the digestive absorption of the peptide is not influenced. The preparation method has the advantages that the newaddition of equipment is not needed, the process is reasonable, the operation is simple and convenient, and the industrial production is easy to realize.