With hazelnut cakes obtained from mechanical pressing process as raw materials, non-dairy creamer, white sugar, maltodextrin, ethyl maltol, carboxymethylcellulose sodium and acesulfame potassium were added to prepared hazelnut protein powder. The effect of each component on the emulsion stability of hazelnut protein powder was evaluated by single factor experiment. The qptimum addition of each component was confi rmed by {4, 2} simple type lattice point design. The optimum formula was as follows: hazelnut raw powder 61.25%, non-dairy creamer 13.60%, white sugar 3.00%, maltodextrin 20.00%, carb...