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Separation and Purification of Cordycepin from Spent Solid Culture Medium after Harvesting Cordyceps militaris Fruit Bodies by Macroporous Resin Adsorption
HU Xia1,2 XIE Hong-qi1 LUO Wei1 XIA Zhi-lan1 LIU Dong-bo1*
1.Sub-health Intervention Technology Laboratory,State Administration of Traditional Chinese Medicine,College of Horticulture and Landscape,Hunan Agricultural University,Changsha 410128,China;
2.Changsha Subcenter of National Center of Citrus Improvement,Changsha 410128,China
Abstract:The adsorption and desorption characteristics of macroporous resins D101,AB-8,HPD-100,HPD-400,HPD-500,HPD-722 and DM130 for cordycepin from spent solid culture medium after harvesting Cordyceps militaris fruit bodies were comparatively investigated.The results showed that HPD 100 was the best resin for the purification of cordycepin from the spent culture medium.The optimal separation and purification conditions were cordycepin concentration of 0.6mg/mL,sample loading amount of 6BV,sample loading flow rate of 3BV/h,4BV of 25%ethanol as desorbent,and desorption flow rate of 2BV/h.Under these conditions,the purity of cordycepin could reach up to 14.1%,which was 8 times higher than before purification.
Key words:cordycepin;Cordycepsmilitaris;macroporous resin