The present invention discloses
tuna bone
powder and a preparation method thereof. High-quality
tuna bones are repeatedly washed clean and drained for a standby application, then a subcritical water combined
microwave treatment is used to enable fish bones to be fully softened, then after the fish bones are evenly mixed with a
deodorant, putting still is conducted for 10-30 min, then the deodorantis washed clean with
clean water, and finally the fish bones are dried, pulverized and sterilized to obtain the
tuna bone
powder. The subcritical water combined
microwave treatment technology is usedfor
processing the tuna bones, can effectively shorten
softening time, enhances a
softening effect, and reduces
time cost loss. At the same time, the preparation method retains
calcium,
phosphorus and other nutritional components in the fish bones to the maximum extent, and avoids caused loss and waste of nutrients during the
softening process. In addition, after the subcritical water combined
microwave treatment, the preparation method lays foundation for late-stage deodorization,
drying and pulverization, can effectively release minerals of hydroxyapatite, etc. in the fish bones, significantly increases
protein content in the fish bones, and enables nutrients in the
fine powder to be more liable to be digested and absorbed by
human body.