虾蛋白粉的制备及其分析

Preparation and analysis of protein powder from shrimp waste

以虾加工下脚料为原料,利用酶法提取蛋白质,研究喷雾干燥的工艺,并对所得到的产品进行了理化分析。结果表明:采用离心喷雾干燥的条件为进风温度180℃,出风温度80℃,生产粗蛋白粉、可溶性蛋白粉的物料进料浓度分别为30%、50%;粗蛋白粉和可溶性蛋白粉中蛋白质、脂肪、灰分、水分含量分别为60.7%,15.0%,12.0%,4.9%及82.3%,0.5%,2.4%,6.3%;虾蛋白粉中必需氨基酸含量较高,占氨基酸总量的41.29%,牛磺酸含量0.280%。

The process for shrimp protein powder was studied in this paper,and the conditions of spray drying were also investigated. Meanwhile, the protein powder was analyzed. The results showed： the inlet and outlet air temperature were 180℃ and 80℃, and the optimum feeding concentration for coarse protein powder and soluble protein powder were 30% and 50%. The content of protein, fat, ash, moisture for the two powders were60.7%, 15.0%, 12.0%, 4.9% and 82.3%,0.5%,2.4%, 6.3%, respectively. The content of essential amino acid （EAA） in shrimp protein powder was 41. 29% and the content of taurine was 0. 280%.