Multible-extraction of functional components from flaxseed
Flaxseed contained four kinds of functional components,such as flaxseed gum,flaxseed oil,flaxseed protein and lignan.The screening and comparison of multible-extraction process of functional components from flaxseed were studied.The process conditions of extracting flaxseed protein and lignan by one-step method were optimized by single factor experiment and orthogonal experiment.The results showed that the optimal conditions of one-step method and multible-extraction process were obtained as follows:with 40％ ethanol solution as extraction solvent,ratio of material to liquid 1∶20,alkaline content 0.07 mol,extraction temperature 50 ℃,extraction time 2 h,extraction times twice and acid precipitation pH 4.4.Under these conditions,the yields of flaxseed gum,flaxseed oil,flaxseed protein and liguan were 9.67％,39.46％,15.27％ and 11.03％,respectively.The purity and extraction rate of liguan were 28％ and 83.83％ respectively.The mutible-extraction process was simple,reasonable and feasible,which reduced the energy consumption and improved the additional value of products.The comprehensive utilization of flaxseed was realized.
NETL
NSTL
万方数据
维普
