过去,生产蛋白奶糖使用的发泡剂,一直都是动物蛋白干,由于动物蛋白干是用鲜鸡蛋清经过酶分解制成,生产一吨蛋白干需十五吨鲜鸡蛋,因此产品成本高,原料供应一直很紧张,严重影响了旦白奶糖的生产。为了寻找动物蛋白干的代用品,镇江市食品厂从七七年开始,进行了 In the past, the foaming agents used to produce protein toffee have been animal protein stems. Since animal protein stems are made of enzymes that decompose with fresh egg whites, fifteen tons of fresh eggs are needed to produce one ton of protein, resulting in high product costs. The supply of raw materials has been very tight, which has seriously affected the production of white sugar. In order to find substitutes for dried animal protein, the Zhenjiang Food Factory began in 1977.