Abstract: The disclosure relates to substantially uniform, high density microspheres and methods of making the microspheres. The microspheres can be made to be small in size with a narrow range of particle size distribution and a high sphericity. In one aspect, the microspheres provided herein are provided in the form of spherical cores comprising maltodextrin or maltodextrin and starch and are prepared using a centrifugal tumbling-granulating-coating apparatus. In another aspect, the spherical cores can be powder-coated with one or more layers of small particles, such as starch particles. The microspheres provided herein can be used as cores for multi-particulate solid dosage delivery systems as well as other pharmaceutical, nutraceutical, food, personal care, and other applications.

Abstract: The disclosure pertains generally to spheres made from a fiber source. These spheres may be used as cores for carrying other ingredients or may be used alone for applications in the food, pharmaceutical, nutraceutical, personal care, and industrial industries. In many embodiments the ingredients used in this invention are derived from a natural resource, and are safe to ingest. In some embodiments, the spheres are formed using a centrifugal tumbling-granulating-coating apparatus.