The invention relates to a fish maw
collagen peptide with effects of improving
body weight and regulating
blood sugar, and a preparation method and application thereof. The fish maw
collagen peptide has the effects of improving type 2
diabetes mellitus and assisting in controlling
body weight, and the preparation method of the fish maw
collagen peptide comprises the following steps: adding fish maw into a
sodium hydroxide solution for pretreatment, then taking out, washing until the fish maw is neutral, and
cutting the fish maw into small blocks; immersing the pretreated fish maw into a solution of a
deep eutectic solvent, and carrying out heat treatment extraction to obtain a crude fish maw collagen
stock solution; performing separation and purification treatment on the crude fish maw collagen
stock solution to obtain a high-purity fish maw collagen
stock solution; freezing and
drying the high-purity fish maw collagen stock solution, carrying out multi-
enzyme combined enzymolysis, and carrying out fire extinguishing
protease, so as to obtain fish maw collagen
peptide enzymatic
hydrolysate; and cooling the fish maw collagen
peptide enzymatic
hydrolysate, and performing
centrifugal separation. The enzymolysis product collagen
peptide has strong DPP IV inhibitory activity, and can regulate the
body weight and fasting blood-glucose of mice with type 2
diabetes mellitus, and improve the
oral glucose tolerance and
liver function of the mice with type 2
diabetes mellitus.