硫酸水解豆粕制备复合氨基酸的正交试验

AN ORTHOGONAL EXPERIMENT OF PREPARATION OF COMPOUND AMINO ACIDS FROM DEFATTED SOYBEAN BY SULPHURIC ACID HYDROLYSIS

采用L9(34)正交试验方法,对硫酸水解豆粕制备复合氨基酸的工艺条件进行优选,当料酸比为1:4～5、硫酸浓度为20%(w/w)、水解温度为120℃时,可以得到最佳的水解效果;在优选条件下水解度可达到93.5%.

Optimization of the cnnditions for sulfuric acid hydrolysis of defatted soybean （ soybean meal） showed that the highest hydrolysis （93.5%） was achieved and most compound amino acids were yielded under the following conditions： the ratio of acid volume to raw material mass 3：1, concentration of sulfuric acid （w/w） 20% and hydrolysis temperature 120℃.