Abstract:Hericium erinaceus has the functions of enhancing human immunity， supplementing amino acids，and regulating the gastrointestinal tract. When added to yogurt， it can improve the health benefits and flavor of yogurt. In this study， the antibacterial effect of high-pressure sterilized and ultraviolet-disinfected Hericium erinaceus powder was tested initially. After confirming that the high-pressure sterilized Hericium erinaceus powder did not interfere with the growth of lactic acid bacteria， the powder was selected to ferment yogurt. Taking the inoculation amount of lactic acid bacteria， as well as the addition amount of Hericium erinaceus powder and sucrose as influencing factors， single-factor and response surface experiments were designed with sensory score as the index. The optimal formula for Hericium erinaceus flavored yogurt was determined as follows： 11 g/L of Hericium erinaceus powder， 67 g/L of sucrose， and 2% of lactic acid bacteria inoculation amount. Under these conditions， the sensory score of Hericium erinaceus flavored yogurt was 88.275±0.891， close to the theoretical result.