The application provides a double-layer slow-release feed
antioxidant based on superfine ginger
powder and a preparation method thereof. The ginger
powder is crushed to superfine particle size through a superfine crushing technology, the
cell wall barrier is broken, and the
dissolution efficiency and
bioavailability of active ingredients are improved. The
chitosan is modified by using a
silane grafting modification technology, an inner layer
coating with excellent hydrophobicity,
water resistance and
mechanical strength is constructed, a hydrophilic outer layer
coating is constructed in combination with
sodium alginate, a double-layer
coating structure of "inner hydrophobic-outer hydrophilic" is formed, the protection of active ingredients such as gingerols in a
gastric acid environment and the targeted slow release in an intestinal environment are realized, meanwhile, the
palatability and storage stability of the product are improved by reasonably matching the components, and finally, a safe, efficient, stable and controllable natural feed
antioxidant is obtained, technical defects existing in the prior art ginger
powder feed
antioxidant are solved, and the demand of large-scale
livestock and poultry breeding is met.