The invention relates to chitin, a hydrolysate and a method for the production of at least one desired product from insects. More specifically, the invention relates to a method for the production of chitin and/or chitosan from insect cuticles, comprising a step in which insect cuticles are treated with an oxidising agent, followed by a step involving the enzymatic hydrolysis of the insect cuticles using a proteolytic enzyme.

The present invention relates to a beetle powder containing at least 67% by weight protein and at least 5% by weight chitin, the weight percentages relating to the total weight of the beetle powder. The invention is also directed to a method for preparing the beetle powder and to the uses thereof, in particular in human or animal nutrition.

The present invention relates to a beetle powder containing at least 67% by weight protein and at least 5% by weight chitin, the weight percentages relating to the total weight of the beetle powder. The invention is also directed to a method for preparing the beetle powder and to the uses thereof, in particular in human or animal nutrition.

Aggregates formed from one or both of chitosan and hyaluronan, suspended or otherwise dispersed in a liquid carrier are useful for treating joint or muscle distress in a subject, where the composition may include one or more pharmaceutically active agents and the composition in locally delivered to the joint or muscle by, for example, injection.

Aggregates formed from one or both of chitosan and hyaluronan, suspended or otherwise dispersed in a liquid carrier are useful for treating joint or muscle distress in a subject, where the composition may include one or more pharmaceutically active agents and the composition in locally delivered to the joint or muscle by, for example, injection.

There is provided a process for producing a medical, material that retains the properties which are inherent in a polyanionic polysaccharide being a raw material, that has a high level of safety because there is no need to use a chemical crosslinking agent, and that has moderate strength and flexibility. The present invention is a process for producing a medical material, the process including a step of dispersing a powder or a granular product of a first polyanionic polysaccharide, the first polyanionic polysaccharide water-insolubilized with a treatment liquid containing a first acid anhydride, in an aqueous solution of a water-soluble salt of a second polyanionic polysaccharide, thereby obtaining a dispersion liquid, a step of drying the dispersion liquid obtained, thereby obtaining a dried film, and a step of water-insolubilizing the dried film obtained with a treatment liquid containing a second acid anhydride, thereby obtaining the medical material.

There is provided a process for producing a medical, material that retains the properties which are inherent in a polyanionic polysaccharide being a raw material, that has a high level of safety because there is no need to use a chemical crosslinking agent, and that has moderate strength and flexibility. The present invention is a process for producing a medical material, the process including a step of dispersing a powder or a granular product of a first polyanionic polysaccharide, the first polyanionic polysaccharide water-insolubilized with a treatment liquid containing a first acid anhydride, in an aqueous solution of a water-soluble salt of a second polyanionic polysaccharide, thereby obtaining a dispersion liquid, a step of drying the dispersion liquid obtained, thereby obtaining a dried film, and a step of water-insolubilizing the dried film obtained with a treatment liquid containing a second acid anhydride, thereby obtaining the medical material.

Provided herein is chitosan dually derivatized with arginine and gluconic acid; and methods of making and using the same, e.g., for gene delivery in vivo.

Provided herein is chitosan dually derivatized with arginine and gluconic acid; and methods of making and using the same, e.g., for gene delivery in vivo.

The present invention is a product and process to produce a new inclusion of a Chitosan-based compound and herbal extract, to provide consistent and long-lasting antimicrobial, antiviral, antibacterial, antifungal, anti-spore, and anti-odor characteristics.