摘要
以脱脂脱胶亚麻饼粕为原料,旨在研究纤维素酶解-超声波辅助对其有效成分木脂素提取效果的影响,试验采用响应面分析法确定了酶解亚麻粕,辅助超声波提取木脂素的数学模型,探讨了加酶量、酶解时间、超声时间和固液比等参数对提取效果的影响,根据该模型进行工艺参数优化。结果表明最佳条件为:酶解时间122 min、加酶量为2.96%、超声时间为13.5 min,固液比为1︰89(g/mL)时,木脂素得率达到8.178 13%。结果表明,与常规提取方法相比,超声波辅助纤维素酶解法显著提高了木脂素的得率,缩短了提取时间。
With the unfatted and degumming flaxseed cake as raw material, study the effect on extraction of lignans by the cellulose and ultrasonic-assisted extraction processing. On the basis of single-factor, the extraction condition was optimization through Box-Benhnken design and response surface methodology, and the mathematical regress model was established about extraction rate. According to this model, the optimum extraction condition was determined as follows： the enzyme dosage of 2.96%, the time of 122 rain, the ultrasonic time of 13.5 min, the solid-liquid ratio 1 ： 89 （g/mL）, and the extraction rate of lignans is 8.178 13%. The result showed that compared to solvent extraction method, yield of flaxseed lignin was improved significantly and the extract time was greatly reduced.
出处
《食品工业》
北大核心
2013年第11期42-46,共5页
The Food Industry
基金
黑龙江省教育厅资助项目(编号11511449)
关键词
木脂素
超声提取
复合纤维素酶
响应面
lignans
extraction of ultrasonic
compounded-cellulose
response surface methodology
