机构地区: 郑州轻工业学院食品与生物工程学院
出 处: 《农产食品科技》 2007年第4期15-17,共3页
摘 要: 本文采用L9(3^3)正交试验设计研究了影响牛乳饼化学成分的三个主要因素,结果表明加酸量是影响蛋白质和灰分含量的主要因素,加热温度是影响干物质和脂肪含量的主要因素。确定了最佳工艺参数为:加入0.2%柠檬酸,加热温度为85℃,凝乳时间为5min,此条件下牛乳饼中蛋白质含量为21.73%;脂肪23.11%;灰分1.19%;干物质50.49%。 Three factors affecting the chemical composition of cow milk cake were investigated with L9 (3^3). The results showed that the quantity of acid added was the main factor influencing the contents of protein and ash. The heating-temperature was the main factor contents of fat and total solid. The best technology parameters were 0.2% citric acid, temperature 85℃ and milk-clotting time 5 min. The contents of protein, total solid, fat and ash were 21.73%, 50.49%, 23.11%, and 1.19%, respectively.