High-immunity yeast cell wall as well as preparation method and application thereof

The invention relates to the technical field of microorganism application, in particular to a high-immunity yeast cell wall as well as a preparation method and application thereof. The invention provides a high-immunity yeast cell wall, the dissolution rate of the high-immunity yeast cell wall is larger than or equal to 40%, glucan with the relative molecular weight being 80-200 kDa accounts for 99% or above of the total mass of the glucan, and the glucan content is 20-40% according to the mass of the high-immunity yeast cell wall. The high-immune yeast cell wall has a high dissolution rate, the immune effect is remarkably improved, and the high-immune yeast cell wall is derived from yeast and is a green and environment-friendly feed raw material or additive. 本发明涉及微生物应用技术领域，具体涉及一种高免疫型酵母细胞壁及制备方法和应用。本发明提供一种高免疫型酵母细胞壁，其溶解率≥40％，相对分子量为80-200kDa的葡聚糖占葡聚糖总质量的99％以上，以所述高免疫型酵母细胞壁质量计，葡聚糖含量为20-40％。本发明高免疫型酵母细胞壁具有高溶解率，免疫功效显著提高，其源于酵母，是一种绿色、环保的饲料原料或添加剂。