超滤提取香菇多糖的研究

Study on Ultrafiltration Purifying or Lentinan

目的：探讨超滤提纯香菇多糖的可行性及工艺。方法：采用螺旋卷式超滤器对香菇多糖进行提取研究。结果：在此实验范围内，用微滤作预处理较离心法效果好，超滤温度为25℃，pH值接近浸提介质的pH，超滤压力为0．15～0．18MPa，制得香菇多糖的纯度为74．4％，回收率79.6％，是以D-葡聚糖为主的混和多糖。结论：超滤提纯香菇多糖是一种可行的方法。

Purpose: To investigate the feasibility and techniques of lentinan ultrafiltration purifying method. Methods: Lantinan was extracted by spire roll UF unit. Results: D -glucan is the main component of lentinan produced, its purity is 74. 4% and the recovery 79. 6%. At the room temperature, the pH around lixiviation medium and 0. 15~0. 18 MPa,micropore filtration is better than centrifugal as pretreatment. Concluslon: Lentinan ultrafiltration-purifying is one of new feasible methods.