摘要
研究了近临界水中羽毛水解制备氨基酸的生产工艺及工艺优化。利用氨基酸分析仪对水解产物中的氨基酸进行定性和定量分析。实验结果发现,羽毛水解后可得到16种氨基酸。以氨基酸的总收率为考察指标,反应温度、反应时间、反应压力为考察因素进行正交实验,并考察了他们对氨基酸总收率的影响。研究结果表明,近临界水解法高效,工艺简单,对环境友好,在较佳的水解工艺下:P=(5.0±0.5)MPa,T=250℃,t=30min,氨基酸的总收率为6.54%。
The hydrolysis of feather in sub-critical water to produce amino acids was conducted. The quality and quantity analysis of amino acids during hydrolysates were carried out by Amino Acid Analyzer （Biological Liquid Chromatography）, and 16 kinds of amino acids were obtained. The effects of reaction temperature, time and pressure on the yield of amino acids were investigated. Based on these experimental results, the optimum parameters of the hydrolysis process was studied by the L9 （34） orthogonal test with the yield of amino acids as the index and reaction temperature, time and pressure as the factors. The research results show that the sub-critical water hydrolysis process has the advantages of high efficiency, simple process and friendly to environment. The optimum hydrolysis conditions for amino acids production from feather in sub-critical water were found as follows： reaction pressure of （5.0±0.5） MPa, temperature of 250℃ and reaction time of 30 min. Under these conditions, the yield of amino acids could reach up to 6.54%.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2008年第6期1032-1036,共5页
Journal of Chemical Engineering of Chinese Universities
基金
国家自然科学基金资助项目(50578091)
上海市第二期重点学科项目(T-105)
关键词
近临界水
水解
氨基酸
羽毛
正交实验
sub-critical water
hydrolysis
amino acids
feather
orthogonal test
