Chitin, hydrolysate and method for the production of one or more desired products from insects by means of enzymatic hydrolysis
AssigneeYnsect
InventorsNathalie Berezina, Antoine Hubert, Fabrice Berro, Jean-Gabriel Levon, Karine Le Roux, Cecilia Socolsky, Lorena Sanchez, Sophie Laurent
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Abstract
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 at least one desired product from insects, comprising an insect cuticle pressing step, followed by the enzymatic hydrolysis of the insect cuticles using a proteolytic enzyme.
Claims10
A method for the production of chitin and/or chitosan and/or an hydrolysate from insects, comprising the following steps:
- (i) grinding insect cuticles into particles such that at the end of grinding, the size of the particles is between 500 μm and 0.5 cm, and then
- (ii) pressing the insect cuticles to obtain a press cake comprising an oil content less than or equal to 12%, and then
- (iii) enzymatically hydrolyzing the press cake with a proteolytic enzyme, wherein said pressing removes a press juice comprising fat and wherein no second grinding step is performed.
A method for the production of chitin from cuticles of insects, comprising the following steps in the following order:
- a) killing the insects,
- b) grinding the insects into particles such that at the end of grinding, the size of the particles is between 500 μm and 0.5 cm,
- c) pressing the insects to obtain a press cake comprising an oil content less than or equal to 12%,
- d) enzymatically hydrolyzing the press cake with a proteolytic enzyme, and
- e) recovering the chitin,
- wherein said pressing removes a press juice comprising fat and wherein no second grinding step is performed.
A method for the production of an hydrolysate from insects, comprising the following steps:
- a) killing the insects,
- b) grinding the insects into particles such that at the end of grinding, the size of the particles is between 500 μm and 0.5 cm,
- c) pressing the insects to obtain a press cake comprising an oil content less than or equal to 12%,
- d) enzymatically hydrolyzing the press cake with a proteolytic enzyme, and
- e) recovering the hydrolysate,
- wherein said pressing removes a press juice comprising fat and wherein no second grinding step is performed.
A method for the production of chitosan from insect cuticles, comprising the following steps:
- a) killing the insects,
- b) grinding the insects into particles such that at the end of grinding, the size of the particles is between 500 μm and 0.5 cm,
- c) pressing the insects to obtain a press cake comprising an oil content less than or equal to 12%,
- d) enzymatically hydrolyzing the insect cuticlespress cake with a protease,
- e) recovering the chitin,
- f) deacetylating the recovered chitin recoveredto produce chitosan, and
- g) recovering the chitosan,
- wherein said pressing removes a press juice comprising fat and wherein no second grinding step is performed.
Dependencies are inferred from the claim text.