Protein peptide powder for enhancing immunity and preparation method and application thereof

The invention relates to protein peptide powder for enhancing immunity and a preparation method and application thereof. The protein peptide powder is prepared from the following raw materials by weight: 30%-45% of marine fish skin collagen oligopeptide powder, 30%-50% of soybean oligopeptide powder, 10%-20% of Isomaltooligosaccharide, 8%-13% of polydextrose and 0%-0.5% of a sweetener. The protein peptide powder can increase macrophage phagocytic rate and phagocytic index and serum hemolysin content, enhances lymphocyte proliferation and NK cell activity, promotes antibody formation cell number increase, improves the body's immunity, and enhances body immunity. 本发明涉及种增强免疫力的蛋白肽粉及其制备方法和应用。该蛋白肽粉由以下重量百分比的原料制备而成：海洋鱼皮胶原低聚肽粉30％～45％、大豆低聚肽粉30％～50％、低聚异麦芽糖10％～20％、聚葡萄糖8％～13％、甜味剂0％～0.5％。该蛋白肽粉可以增加巨噬细胞的吞噬率和吞噬指数以及血清溶血素含量，增强淋巴细胞的增殖能力和NK细胞活性，促进抗体形成细胞数量增加，提高机体的免疫水平，显著增强机体免疫力。