The invention provides a high-yield low-
pollution preparation method for minced
fish products, which belongs to the technical field of aquatic
food processing. A main preparation process of the method comprises the steps of removing offal, heads and tails of silver carps,
grass carp and other freshwater fishes and obtaining minced
fish products through fish collection, rinsing,
seasoning,
mincing, molding and heating. Aiming at the problems of severe
protein loss, low product yield, high content of soluble
protein and high COD in rinsing
wastewater, and the like in the conventional
water rinsing process, the method adopts a novel control acid-base rinsing method, precipitates
protein at isoelectric points, and then further recover the protein in
wastewater through
ultrafiltration membrane, so that the minced
fish products prepared have the characteristics of
high protein content, high production yield, low environmental
pollution and the like. In addition, compared with the products of the conventional
water rinsing method, the products of the invention have no
significant difference in color, texture, gel properties, sensory property,
flavor, storage stability and other characters.