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Improving on the Separation Protein-polysaccharides from Lentinus edodes (Berk) Sing by SFE Degreasing

He Wei-zhong1,Zhang Zi-gui1,Zhang Zhao-hui21(College of Chemistry and Life Science,Zhejiang Normal University,Jinhua 321004,China)2(College of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China)  
The effects of removing lipid from Lentinus edodes stem at different operation conditions,including extracting time,CO2 pressure,temperature of SFE process were investigated.The results indicated that:(1)The degreased rate of Lentinus edodes was increased rapidly with the increasing of extracting time and it was stable after 50 minutes;(2)The higher temperature the better of degreasing;(3)The most suitable SC-CO2 pressure was(10 MPa).The degreased rate fallen down both above or below this pressure;(4)The rate of recovery of protein-polysaccharides from Lentinus edodes was increased by the degreased rate augment.In summary,SC-CO2 significantly increased protein-polysaccharides extracting from Lentinus edodes(Berk)Sing.
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